Journal articles on the topic 'Vapor plating'

To see the other types of publications on this topic, follow the link: Vapor plating.

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 journal articles for your research on the topic 'Vapor plating.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.

1

Zhuk, Yuri. "Chemical Vapor Deposition Coatings Extend Aerospace Component Life." AM&P Technical Articles 175, no. 6 (September 1, 2017): 23–26. http://dx.doi.org/10.31399/asm.amp.2017-06.p023.

Full text
Abstract:
Abstract Nanostructured tungsten-tungsten carbide chemical vapor deposition (CVD) coatings provide a practical, technical, and commercially viable alternative to hard chrome plating for aircraft components.
APA, Harvard, Vancouver, ISO, and other styles
2

Thomas, Richard R., and Jae M. Park. "Vapor Phase Deposition of Palladium for Electroless Copper Plating." Journal of The Electrochemical Society 136, no. 6 (June 1, 1989): 1661–66. http://dx.doi.org/10.1149/1.2096989.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Xu, Xian Feng, Yan Yan Hu, and Peng Xiao. "The Morphologies of Nano Carbon Growing In Situ by Catalytic Chemical Vapor Deposition." Advanced Materials Research 430-432 (January 2012): 1269–72. http://dx.doi.org/10.4028/www.scientific.net/amr.430-432.1269.

Full text
Abstract:
In order to improve surface characteristics of carbon fibers, using nickel granules as catalysts, nano carbon with different morphologies was deposited in-situ on the surface of carbon fibers by the method of Chemical Vapor Deposition (CVD). The observations by Scanning Electron Microscope (SEM) and Transmission Electron Microscope (TEM) indicated that keeping the excellent performance of plating nickels catalyst and a suitable deposition rate of Pyrogenation Carbon (PyC) are the key factors for getting Carbon Nanotube and Carbon Nanofiber (CNT/CNF). In this experiment, the optimum operation conditions are: plating time at 5min, deposition temperature at 1173K, deposition time at 2 hours, flow of C3H6, H2 and N2 at 30, 200 and 400ml/min respectively, deposition pressure at 700-1000Pa. Evolution rules of nano carbon are explained in growth mechanism of Catalytic Chemical Vapor Deposition (CCVD).
APA, Harvard, Vancouver, ISO, and other styles
4

Whon, Tae Woong, Yong-Hwan Lee, Dong-Shan An, Hyun Kyu Song, and Song-Gun Kim. "A simple technique to convert sitting-drop vapor diffusion into hanging-drop vapor diffusion by solidifying the reservoir solution with agarose." Journal of Applied Crystallography 42, no. 5 (September 8, 2009): 975–76. http://dx.doi.org/10.1107/s0021889809028805.

Full text
Abstract:
A simple protocol to convert sitting-drop vapor-diffusion plating into a hanging-drop vapor-diffusion experiment in protein crystallization is reported. After making a sitting-drop plate, agarose solution was added to solidify the reservoir solution, and the plates were incubated upside down. Crystallization experiments with hen egg white lysozyme, thaumatin and glucose isomerase showed that the `upside-down sitting-drop' method could produce single crystals with all the benefits of the hanging-drop crystallization method.
APA, Harvard, Vancouver, ISO, and other styles
5

Tanaka, Kazuto, and Shuhei Kyoyama. "The Effect of Pulse Current on Electrolytically Plating Nickel as a Catalyst for Grafting Carbon Nanotubes onto Carbon Fibers via the Chemical Vapor Deposition Method." Journal of Composites Science 7, no. 2 (February 19, 2023): 88. http://dx.doi.org/10.3390/jcs7020088.

Full text
Abstract:
Carbon nanotubes (CNTs) can be directly grafted onto the surface of carbon fibers using the chemical vapor deposition method, in which nanometer-order nickel (Ni) particles, serving as catalysts, are plated onto the surface of carbon fibers via electrolytic plating. In our previous studies, in which a direct current (DC) was used to electrolytically plate Ni onto carbon fibers as a catalyst, the site densities and diameters of Ni particles increased simultaneously with the plating time, making it difficult to independently control the site densities and diameters of the particles. On the other hand, pulse current (PC) plating is attracting attention as a plating technique that can control the deposition morphology of nuclei. In this study, we clarify the effect of the parameters of the PC on the particle number per unit area (site density) and the particle diameters of Ni particles plated onto the surface of carbon fibers, using the PC to electrolytically plate Ni. Electrolytically plating Ni onto carbon fibers (via PC) after the removal of the sizing agent enable Ni particles with sparser site densities and larger diameters to be plated than those plated via DC. Using Ni particles with sparse site densities, it is shown that CNTs with sparse site densities can be grafted.
APA, Harvard, Vancouver, ISO, and other styles
6

Yang, Li Jun, Ze Hui Zhang, Xin An Dang, and Lin Li. "Properties of TiAl/TiAlN/TiAlCN Films Deposited by Arc Ion Plating on GCr15 Rings." Materials Science Forum 789 (April 2014): 449–54. http://dx.doi.org/10.4028/www.scientific.net/msf.789.449.

Full text
Abstract:
Ring is one of the major textile spinning machine consumable part, it has an important influence on yarn quality and cost. Ring of domestic cotton spinning enterprises generally has poor hardness, bad accuracy, not durable and difficult to guarantee the quality of the yarn, foreign ring has excellent performance, but it is too expensive, so it is difficult to widely used in China[1]. Vacuum arc ion plating technology has a wide range of applications in the aerospace, automobile, mold, tool, electronics and other fields [2-3]. TiN film which is prepared by arc ion plating technology has been widely used because of the TiN film has poor oxidation resistance and wear resistance at high temperatures, so the ternary films are developed on TiN film, such as TiAlN [4], TiCN etc. Traveller circle in the ring on the slide to produce large amounts of heat, it makes the ring surface temperature reach 400°C. When higher than 400°C, the TiCN film failure, therefore, ring should not be plated on the TiCN films. While TiAlN film oxidation temperature reaches 800°C. In HSS twist drill, depositing of TiAlN film can improve the service life more than four times [5]. Studies [6-8] have found that using pulsed laser deposition and chemical vapor deposition technique to prepare TiAlCN film, its wear resistance, high temperature stability is better. Pulsed laser deposition is mainly used in laboratory research. It is difficult to deposit a large area uniform film. Chemical vapor deposition of deposition rate is less than the arc ion plating, and produces lots of waste gas, leading to the environment is polluted. Arc ion plating technology can deposit the uniform films of large area with high deposition rate and deposition with no environmental pollution, therefore, this study, by means of vacuum arc ion plating technology to prepare high-precision, long-life and low-cost domestic cotton spinning ring. In order to obtain the best film process parameters, the performance of film is investigated at different bias and arc current.
APA, Harvard, Vancouver, ISO, and other styles
7

Yu, D. H., Cheng Yong Wang, X. L. Cheng, and Yue Xian Song. "TiAlSiN Coatings Prepared by Hybrid PVD Technology for High Speed Milling of Hardened Steel." Advanced Materials Research 69-70 (May 2009): 423–27. http://dx.doi.org/10.4028/www.scientific.net/amr.69-70.423.

Full text
Abstract:
TiAlSiN coatings with different Al content were prepared by hollow cathode discharge ion plating (HCDIP) and medium frequency magnetron sputtering ion plating (MFMSIP) hybrid physical vapor deposition (PVD) coating system. The composition, microstructure, mechanical properties of these coatings were systematically investigated by means of EDX, XRD, SEM, nanoindentation, scratch and tribological tests. It was found that the coatings had (111) or (200) preferred orientation with addition of Al. Proper content of Al led to increase of microhardness and adhesion. The flank wear of carbide end mill coated with TiAlSiN had the least wear than those coated with TiAlN and TiSiN coatings under the high speed milling of hardened steel experiments.
APA, Harvard, Vancouver, ISO, and other styles
8

Braun, Silvia, Maik Wiemer, and Stefan E. Schulz. "Process Development of Aluminum Electroplating from an Ionic Liquid on 150 mm Wafer Level." Micromachines 15, no. 6 (June 1, 2024): 746. http://dx.doi.org/10.3390/mi15060746.

Full text
Abstract:
This paper focuses on the development of electroplating on 150 mm wafer level for microsystem technology applications from 1-Ethyl-3-methylimidazolium chloride (EMImCl) with Aluminumtrichloride (AlCl3). The deposition was carried out on 150 mm wafers with Au or Al seed layers deposited by physical vapor deposition (PVD). The electrodeposition was carried out using pattern plating. On the Au seed layer, bipolar pulse plating was applied. Compared to the Au seed layer, the electrodeposition on the Al seed layer was favorable, with lower current densities and pulsing frequencies. Utilizing the recurrent galvanic pulses and avoiding ionic liquid convection, inhomogeneities lower than 15% were achieved with a laboratory plating cell. One major aspect of this study was the removal of the native Al oxide prior to deposition. It was investigated on the chip and wafer levels using either current- or potential-controlled removal pulses. This process step was affected by the plasma treatment of the wafer, thus the surface free energy, prior to plating. It turned out that a higher surface free energy hindered proper oxide removal at a potential of 3 V. The theory of oxide breakdown based on electrostriction force via the electrical field was applied to discuss the findings and to derive conclusions for future plating experiments.
APA, Harvard, Vancouver, ISO, and other styles
9

White, J. R. "Summary Abstract: A physical vapor deposition technique for plating gun tubes." Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films 4, no. 6 (November 1986): 2855–56. http://dx.doi.org/10.1116/1.573690.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Shin, Eun Gu, Atteq ur Rehman, Sang Hee Lee, and Soo Hong Lee. "Nickel Electroless Plating: Adhesion Analysis for Mono-Type Crystalline Silicon Solar Cells." Journal of Nanoscience and Nanotechnology 15, no. 10 (October 1, 2015): 7823–27. http://dx.doi.org/10.1166/jnn.2015.11184.

Full text
Abstract:
The adhesion of the front electrodes to silicon substrate is the most important parameters to be optimized. Nickel silicide which is formed by sintering process using a silicon substrate improves the mechanical and electrical properties as well as act as diffusion barrier for copper. In this experiment p-type mono-crystalline czochralski (CZ) silicon wafers having resistivity of 1.5 Ω·cm were used to study one step and two step nickel electroless plating process. POCl3 diffusion process was performed to form the emitter with the sheet resistance of 70 ohm/sq. The SiNx layer was set down as an antireflection coating (ARC) layer at emitter surface by plasma enhanced chemical vapor deposition (PECVD) process. Laser ablation process was used to open SiNx passivation layer locally for the formation of the front electrodes. Nickel was deposited by electroless plating process by one step and two step nickel electroless deposition process. The two step nickel plating was performed by applying a second nickel deposition step subsequent to the first sintering process. Furthermore, the adhesion analysis for both one step and two steps process was conducted using peel force tester (universal testing machine, H5KT) after depositing Cu contact by light induced plating (LIP).
APA, Harvard, Vancouver, ISO, and other styles
11

Lin, Yuli, and Li-Jang Hwang. "Ni-Coated Optical Fibers by Electroless Plating." Microscopy and Microanalysis 6, S2 (August 2000): 456–57. http://dx.doi.org/10.1017/s1431927600034772.

Full text
Abstract:
Optical fibers have been extensively employed in a variety of fields. However, the need of high strength, excellent resistance to moisture permeation and tolerance to heat becomes apparent when such optical fibers are used in nuclear power plants and chemical plants in particular. Plastic coatings as conventional made of optical fibers cables would be replaced by the optical fiber coated with a layer of metal.Several techniques have been applied to make a metal coating for the optical fibers. Dipping method, to pass optical fibers through a bath containing metal melt, was found the simplest. This dipping method, however, suffers from a disadvantage of a generation of a microbent due to the differences of the linear expansion between metal and the silica substrate [1]. Moreover, the control of the thickness was found difficult using the dipping method. Chemical vapor deposition was also used to form the metal coating on optical fibers.
APA, Harvard, Vancouver, ISO, and other styles
12

Xie, Peng Cheng, Gang Gou, Zhen Xing Wen, Yu Mei Ding, and Wei Min Yang. "Research on the Key Technology of Precision Injection Molding Equipment for Light Guide Plate." Advanced Materials Research 87-88 (December 2009): 306–10. http://dx.doi.org/10.4028/www.scientific.net/amr.87-88.306.

Full text
Abstract:
The light guide plate is an important element of the LCD backlight module which demands a certain degree of transparency and uniformity of gray. The defects such as black spots and yellow surface appeared when the light guide plate was processed by domestic equipments. The main problem was caused by the plasticization unit. The Influencing factors of performance for polycarbonate (PC) special screw were discussed in this paper. The conveyance capacity of melt in the metering zone of injection screws with different flight width and channel depth was analyzed by POLYFLOW software. In order to obtain high surface hardness, corrosion resistance and smoothness of PC special screw, surface coating processing was the key point for injection molding light guide plate. Moreover, the peel strength of PC with different coating processing metallic block was tested and measured. he experimental results of the analysis showed that the nickel-tungsten alloy plating and physical vapor deposition can significantly improve stripping properties, corrosion resistance and smoothness. The influencing factors of coating and PC materials’ stripping were analyzed. Through industrial testing, the defective rate of light guide plate had been greatly reduced with physical vapor deposition compared to the screw with hard chromium plating.
APA, Harvard, Vancouver, ISO, and other styles
13

MITA, Mamoru. "Plating Characteristics of Vapor Deposited Copper Film Using High Purity Copper Sources." Journal of the Surface Finishing Society of Japan 48, no. 5 (1997): 539–43. http://dx.doi.org/10.4139/sfj.48.539.

Full text
APA, Harvard, Vancouver, ISO, and other styles
14

Qian, X. Y., M. H. Kiang, N. W. Cheung, I. G. Brown, X. Godechot, J. E. Galvin, R. A. MacGill, and K. M. Yu. "Metal vapor vacuum arc ion implantation for seeding of electroless Cu plating." Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms 55, no. 1-4 (April 1991): 893–97. http://dx.doi.org/10.1016/0168-583x(91)96302-2.

Full text
APA, Harvard, Vancouver, ISO, and other styles
15

Kostylev, A., Y. Pokrovsky, A. Lumpov, and Boris Bryskin. "Advanced Chromium Carbide Coatings on Piston Rings by CVD: A Highly Adaptable New Method with Relatively Low Cost." AM&P Technical Articles 170, no. 7 (July 1, 2012): 22–26. http://dx.doi.org/10.31399/asm.amp.2012-07.p022.

Full text
Abstract:
Abstract Chemical vapor deposition (CVD) of pyrolytic chromium carbide coatings (PCCCs) is proving to be a viable alternative to hard chrome plating used on cylinder piston group components. This article discusses the development and optimization of a CVD process for depositing PCCCs on piston rings and cylinder sleeves. It evaluates the coatings based on friction, wear, and adhesion properties in comparison with coatings produced by other methods.
APA, Harvard, Vancouver, ISO, and other styles
16

Mason, Maribeth, Genghmun Eng, Martin Leung, Gary Stupian, and Terence Yeoh. "Tin Whisker Risk Assessment for Space Systems." EDFA Technical Articles 14, no. 1 (February 1, 2012): 14–20. http://dx.doi.org/10.31399/asm.edfa.2012-1.p014.

Full text
Abstract:
Abstract Tin whiskers are single-crystal filaments that can grow from tin-plated copper or nickel components. This article discusses the effect of plating thickness, composition, and grain size on tin whisker formation and explains how to assess damage potential based on microanalysis, whisker length distribution models, and metal vapor arc risk factors. The authors also present and analyze several examples of failures caused by tin whisker formation in space systems.
APA, Harvard, Vancouver, ISO, and other styles
17

Rathnam, G. Santhosha. "The Effect of Different Surface Treatments to Reduce Surface Roughness Before PVD Coatings." International Journal for Research in Applied Science and Engineering Technology 10, no. 9 (September 30, 2022): 779–88. http://dx.doi.org/10.22214/ijraset.2022.46575.

Full text
Abstract:
Abstract: Titanium and its compounds are used in aerospace, automotive, and chemical but currently it's considerably used in biomedical usages due to its excellent combination of low viscosity, high strength to weight rate, high erosion resistance, and biocompatibility, still, the main limit is poor tribological parcels therefore it can not be successfullyused.Wide range of face treatments disposition of shells similar as scraping and melting of face and cumulative processes similar as plating. For essence, face variations are plating or sheeting processes. There are different types of face coatings charging, electrochemical coatings, vapor deposit, conversion coatings, and thermal spraying among them PVD is vapor deposit which the coatings are hard and thin film. In PVD coatings Nitrides and carbide coatings are classified. In which nitride coatings TiN, TiAlN, and duplex TiAlN and drum were deposited on a substrate( Ti6Al4V). But for deposit, the face roughness should be0.08 µm. Thin hard coatings have good wear and tear resistance only when they've good adhesion and certain face roughness. To reduce face roughness different face treatments are acclimated similar as shot firing, sandblasting, drawing, ray figure, grinding and polishing, etc. Sandblasting was done but the face roughness didn't drop to0.08 µm. so required face roughness was attained by grinding and polishing with sandpaper, and it was diamond polished
APA, Harvard, Vancouver, ISO, and other styles
18

Zhang, Hui Chong, Zhan Chang Pan, Guang Hui Hu, Zhi Gang Wei, Chu Min Xiao, Shi Rong Chen, Zhu Liang Li, and Jian Feng Deng. "Surface Modification of PET Films by Vapor-Phase Photografting Acrylic Acid and its Application to Electroless Copper Plating." Advanced Materials Research 311-313 (August 2011): 1802–5. http://dx.doi.org/10.4028/www.scientific.net/amr.311-313.1802.

Full text
Abstract:
As a simple and useful approach, vapor-phase photografting acrylic acid was used to modify the surface of PET films. Catalyst of silver nanoparticles was distributed on the photografting PET films equably after reducing by ascorbic acid. Topography of the pristine, grafting and metallized PET films was characterized by scanning electron microscope (SEM). XRD and FTIR-ATR were also used to analyze the electroless plating copper layer and the grafting PET film respectively.
APA, Harvard, Vancouver, ISO, and other styles
19

Daming, Zhuang, Liu Jiajun, Zhu Baoliang, Zhou Zhong-Rong, Leo Vincent, and Philippe Kapsa. "Effect of Stress State of Different Tin Films on Their Tribological Behavior." Journal of Tribology 120, no. 4 (October 1, 1998): 820–28. http://dx.doi.org/10.1115/1.2833785.

Full text
Abstract:
Titanium nitride films were deposited by the methods of ion beam enhanced deposition (IBED), plasma chemical vapor deposition (PCVD) and ion plating (IP). X-ray diffraction analysis was employed to determine the internal stress state of TiN film and 52100 steel substrate at both sides of the interface. The effect of stress state on their bonding strength and tribological behavior was analyzed systematically, their wear and failure mechanisms were discussed in detail as well.
APA, Harvard, Vancouver, ISO, and other styles
20

Islam, Md Saiful, Md Jahid Hasan, Promita Poroma, and Sraboni Akter. "A review on the environment friendly electroplating of Cr (III) & Cr (VI)." Journal of Science and Engineering Papers 01, no. 01 (January 18, 2024): 31–39. http://dx.doi.org/10.62275/josep.24.1000006.

Full text
Abstract:
Chromium plating process is the most effective way of protecting the base material against hostile environment or improving surface properties of base material. There are several problems with traditional chrome plating. Traditional process uses toxic acid baths and may cause various health conditions. The baths employed contain chromic acid in which the chromium is in the hexavalent state. Hexavalent chromium has been proved to have toxic, mutagenic and cancerogenic effects for human health. As a result, In Europe, the implementation of the reach initiative will increase fees on companies still using Cr (VI) in 2017 and will require action plans to phase out Cr (VI) in the future. This has left the plating industry in a very delicate position with dark future prospects unless new solutions that are both effective and environmentally friendly are discovered. Superchrome Physical Vapor Deposition coating ahead of looming industry regulatory actions that will drive towards the removal of hazardous hexavalent chromium compounds. These new sputtered chromium coatings do not require a protective paint top coat to pass exterior automotive trim specifications. Visually the chromium coatings match those of electroplated decorative chromium in color and appearance.
APA, Harvard, Vancouver, ISO, and other styles
21

Zhan, Jian Chao. "The Preparation of Ni-Co-Fe/PU Magnetic Composite Membrane." Advanced Materials Research 239-242 (May 2011): 2937–41. http://dx.doi.org/10.4028/www.scientific.net/amr.239-242.2937.

Full text
Abstract:
On the base of electroless plating on fabric, the Ni-Co-Fe was plated on the PU membrane of coated polyamide fabric and the respiratory electromagnetic shielding fabric was developed. The functionality and wear-ability of electromagnetic shielding fabric was tested and analyzed. The results showed that it has good electrical conductivity, water vapor permeability, electromagnetic shielding performance and durability and so on. With the weight increasing rate goes up, the shielding effectiveness, vapor permeability and electrical conductivity increases obviously, then prone to slow increment. The plated layer on fabric has an adverse effect on the wear performance and on the premise of meeting respiratory and electromagnetic shielding performance, the thickness of plated layer should be decreased to the least extend.
APA, Harvard, Vancouver, ISO, and other styles
22

JEHN, Hermann A. "Vapor deposition and electrochemical plating: Competition, alternative or combination-or: Which serves best?" Journal of Advanced Science 13, no. 4 (2001): 549–60. http://dx.doi.org/10.2978/jsas.13.549.

Full text
APA, Harvard, Vancouver, ISO, and other styles
23

kamal, Hagar, Mohammed Mohammed, and Salwa Abdel-Naby. "Physical Vapor Deposition as an Economical Alternative to Gold Plating in Imitation Jewelry." Journal of Design Sciences and Applied Arts 2, no. 2 (June 1, 2021): 245–49. http://dx.doi.org/10.21608/jdsaa.2021.50381.1085.

Full text
APA, Harvard, Vancouver, ISO, and other styles
24

Wu, Liying, Lianchang Qiu, Yong Du, Fangfang Zeng, Qiang Lu, Zhuopeng Tan, Lei Yin, Liyong Chen, and Jifei Zhu. "Structure and Mechanical Properties of PVD and CVD TiAlSiN Coatings Deposited on Cemented Carbide." Crystals 11, no. 6 (May 25, 2021): 598. http://dx.doi.org/10.3390/cryst11060598.

Full text
Abstract:
This work reports the results of our investigation of the structure and mechanical properties of physical vapor deposition (PVD) and chemical vapor deposition (CVD) TiAlSiN coatings deposited on cemented carbide substrates. For the first time, a novel nanocomposite of Ti0.13Al0.85Si0.02N coating deposited from TiCl4-AlCl3-SiCl4-NH3-H2 gas precursors was prepared by low pressure chemical vapor deposition (LPCVD) at 780 °C and a pressure of 60 mbar, while PVD Ti0.31Al0.60Si0.09N coating was prepared using the arc ion plating method. The investigation results including morphology, microstructure, chemical composition, phase component, and hardness were carried out by scanning electron microscopy (SEM) equipped with energy dispersive spectrometer (EDS), transmission electron microscopy (TEM), X-ray diffraction (XRD), and nano-indentator. TEM results revealed that both PVD and CVD TiAlSiN coatings consisted of nanocrystalline embedded in SiNx amorphous. The nanohardness of CVD Ti0.13Al0.85Si0.02N coating obtained in this work was 31.7 ± 1.4 GPa, which was 35% higher than that of the PVD Ti0.31Al0.60Si0.09N coating.
APA, Harvard, Vancouver, ISO, and other styles
25

Ardashev, Dmitrii, Nizami Yusubov, Leonid Shipulin, and Anastasiya Degtyareva-Kashutina. "Development of environmental protection system for installation of chrome plating of the internal surfaces of hydraulic drives with hydrostatic guideways." E3S Web of Conferences 193 (2020): 02015. http://dx.doi.org/10.1051/e3sconf/202019302015.

Full text
Abstract:
Electroplating is an electrochemical process when a metal layer is deposited on the surfaces of a product. As an electrolyte, a solution of the salts of the deposited metal is used, the vaporization and micro-spray of which have an extremely negative and dangerous effect on humans and the environment. In this work, we present an environmental protection system for implementing the process of chrome plating of the internal surfaces of a hydraulic drive with hydrostatic guideways is presented. The schematic diagram of the environmental protection system includes the first stage of air purification (drip collector), the second stage of air purification (granular filter), as well as a system of granular filter cleaning and a radial fan. To clean the exhaust air from harmful substances, such as aerosols of chromium oxides and sulfuric acid, as well as water vapor, a comprehensive gas purification system for emissions of pollutants is proposed, consisting of step-by-step cleaning in various devices, including a drip collector with two droplet-breaking elements and a granular filter. The presented design of the environmental protection system equipment of the installation for chrome-plating the internal surfaces of a hydraulic drive with hydrostatic guideways will make it possible to effectively neutralize the air environment by cleaning the air from chrome anhydride vapor and other pollutants.
APA, Harvard, Vancouver, ISO, and other styles
26

Kupchenko, Leonid, Rauno Tali, Eron Adoberg, Valdek Mikli, and Vitali Podgursky. "Evolution of TiN Coating Surface Roughness during Physical Vapor Deposition on High Speed Steel Substrate." Key Engineering Materials 604 (March 2014): 67–70. http://dx.doi.org/10.4028/www.scientific.net/kem.604.67.

Full text
Abstract:
TiN coatings with different thickness were prepared by arc ion plating (AIP) physical vapor deposition (PVD) on high speed steel (HSS) substrates. TiN coatings surface roughness was investigated by atomic force microscopy (AFM) and 3D optical profilometry and growth kinetics was described using scaling exponents β and α. The growth exponent β is 0.91-1.0 and the roughness exponent α is 0.77-0.81. Due to relatively high value of the exponent α, the surface diffusion is likely predominant smoothening mechanism of TiN growth.
APA, Harvard, Vancouver, ISO, and other styles
27

Morikawa, Yasuhiro, Takahide Murayama, Toshiyuki Sakuishi, and Koukou Suu. "2.5 / 3D PACKAGING TECHNOLOGY SOLUTION FOR HIGH FREQUENCY DEVICE." International Symposium on Microelectronics 2013, no. 1 (January 1, 2013): 000013–16. http://dx.doi.org/10.4071/isom-2013-ta14.

Full text
Abstract:
“2.5D silicon interposers” and “Hetero 3D stacked” technology for high-performance LSI are gathering the most attention from now on. These technologies can solve interconnection problems using TSV (Through Silicon Via) to electrically connect stacked each function devises. 2.5D and hetero-3D Si integration has great advantages over conventional 2D devices such as high packaging density, small wire length, high-speed operation, low power consumption, and high feasibility for parallel processing. But, the radical problem about the TSV production cost is not still solved. In particular, the demand to a new plating bath technology to shorten Cu plating time is expected. On the other hand, TSV isolation liner materials with lower cost for high frequency devices will be necessary in the future. “Scallop-free” etching process has developed for TSV fabrication [1]. As a result, the smooth-sidewall had proved shorten PVD process time [2]. At first, it investigated a cost correlation of taper-shape etching and Cu-ECP (electro-chemical plating) in this paper. And then, a polyurea film using a vapor deposition polymerization technology (which is Ulvac's FPF/PV large panel technology) tried introduction as isolation liner for next-generation high frequency device. And, it performed the film formation to a TSV pattern.
APA, Harvard, Vancouver, ISO, and other styles
28

Au, Yeung, Qing Min Wang, Huazhi Li, Jean-Sebastien M. Lehn, Deo V. Shenai, and Roy G. Gordon. "Vapor Deposition of Highly Conformal Copper Seed Layers for Plating Through-Silicon Vias (TSVs)." Journal of The Electrochemical Society 159, no. 6 (2012): D382—D385. http://dx.doi.org/10.1149/2.097206jes.

Full text
APA, Harvard, Vancouver, ISO, and other styles
29

Miyoshi, Kazuhisa, Talivaldis Spalvins, and Donald H. Buckley. "Tribological characteristics of gold films deposited on metals by ion plating and vapor deposition." Wear 108, no. 2 (March 1986): 169–84. http://dx.doi.org/10.1016/0043-1648(86)90095-5.

Full text
APA, Harvard, Vancouver, ISO, and other styles
30

Yang, Zhongyi, Ning Zhang, Hongtao Li, Bo Chen, and Bo Yang. "Comparison to Micro Wear Mechanism of PVD Chromium Coatings and Electroplated Hard Chromium." Materials 16, no. 7 (March 28, 2023): 2695. http://dx.doi.org/10.3390/ma16072695.

Full text
Abstract:
Electroplated hard chromium (EPHC) has been widely used in industry due to its excellent mechanical properties, but the development of this technology is limited by environmental risks. The physical vapor deposition (PVD) process has shown promise as an alternative to EPHC for producing chromium-based coatings. In this research, we investigate the microstructure and wear resistance of pure chromium coatings using two PVD techniques, namely, magnetron sputtering ion plating (MSIP) and micro-arc ion plating (MAIP), which are compared to EPHC. To assess wear resistance, we evaluated factors such as hardness, coating base bonding force, wear rate and friction coefficient via friction and wear experiments. The results show that, in terms of microstructure, while the EPHC coating does not exhibit a strong preferred growth orientation, the PVD coatings exhibit an obvious preferred growth orientation along the (110) direction. The average grain size of the EPHC coating is the smallest, and the PVD chromium coatings show a higher hardness than the EPHC coating. The results of pin-on-disk tests show that there is little difference in friction coefficients between EPHC and MAIP chromium plating; however, the MAIP chromium coating showed an excellent specific wear rate (as low as 1.477 × 10−13 m3/Nm). The wear condition of the MAIP chromium coating is more stable than that of the EPHC coating, indicating its potential as a replacement for EPHC.
APA, Harvard, Vancouver, ISO, and other styles
31

Bădănac, Ana, Ramona Popa Scurtu, Gheorghe Bosoancă, Valerică Hușanu, and Sorin Popa. "Researches Concerning the Improving of the Cutting Inserts Durability Using Titanium Deposition." Advanced Materials Research 1036 (October 2014): 252–58. http://dx.doi.org/10.4028/www.scientific.net/amr.1036.252.

Full text
Abstract:
It is known that in the cutting processes, due to the parameters variation of the working regimes, to the unevenness of the cutting depth, to the physico-mechanical characteristics of the processed material, to the existence or nonexistence of the coolant oiling, can appear more or less an accentuated wear of the cutting tools. All this factors have a dominant and negative influence on the durability, fact that impose being necessary taking into account some measures to increase the values of the cutting tools and/or of theirs cutting plates durability. In this sense are known various coating by deposition in vacuum researches (vacuum thermal evaporation and condensation from the vapor phase, ionic plating, vapour chemical deposition at low pressure, and so on) of some different filler materials, in thin layers, having protection role for the cutting plates, to increase the edge hardness to the superficial layer and of the tool locating and clearance surfaces and respectively, of their wear resistance. For this purpose, the authors propose to improve cutting tools durability using the deposition method by ionic plating in vacuum (PVD) of the thin titanium layers, following the cutting tools behavior in operation treated in this way. It was so studied the metal carbide cutting plates wear variation, coated with a titanium thin layer and it was determinated the cutting plates durability increasing, in comparison with those untreated. This research is usefull for predicting the lifetime of the cutting tools and/or of theirs cutting plates durability, after the titanium thin layer application, with a significant cost reduction.
APA, Harvard, Vancouver, ISO, and other styles
32

Jeong, Woon-Jo. "Development of Near Gold-Colored TixZr1-xN Nano Thin Films by Arc Ion Plating." Journal of Nanoscience and Nanotechnology 21, no. 9 (September 1, 2021): 4818–23. http://dx.doi.org/10.1166/jnn.2021.19261.

Full text
Abstract:
A gold plating technique with wet chemical solution is widely used to make different metallic colors for various industrial applications. However, it results in environmental pollution due to the generation of contaminated water, and it is also an expensive process. As an alternative approach, it is often desirable to use the Physical Vapor Deposition coating method that does not generate such pollution, and to use cheaper material to imitate gold colors. In this letter, target materials consisting of Ti–Zr alloy are employed to realize tens of nanometers thickness metallic thin film that can produce a metallic color that is close to that of natural gold. TiZrN thin films with a thickness ranging (2,000 to 4,000) nm are formed on a substrate using Arc Ion Plating. The results showed that the thin films exhibited an adhesion force of 50 N or more and a hardness of 1,500 Hv or more under a −100 V bias condition, and various gold colors could be realized by changing the ratio of Ti and Zr element of the alloy target.
APA, Harvard, Vancouver, ISO, and other styles
33

Kim, Dong-Kyu, Woong Han, Kwan-Woo Kim, and Byung-Joo Kim. "Electromagnetic Interference Shielding Effectiveness of Direct-Grown-Carbon Nanotubes/Carbon and Glass Fiber-Reinforced Epoxy Matrix Composites." Materials 16, no. 7 (March 24, 2023): 2604. http://dx.doi.org/10.3390/ma16072604.

Full text
Abstract:
In this study, carbon nanotubes (CNTs) were grown under the same conditions as those of carbon fibers and glass fibers, and a comparative analysis was performed to confirm the potential of glass fibers with grown CNTs as electromagnetic interference (EMI) shielding materials. The CNTs were grown directly on the two fiber surfaces by a chemical vapor deposition process, with the aid of Ni particles loaded on them via a Ni-P plating process followed by heat treatment. The morphology and structural characteristics of the carbon and glass fibers with grown CNTs were analyzed using scanning electron microscopy–energy dispersive X-ray spectroscopy (SEM–EDS), X-ray diffraction (XRD), and X-ray photoelectron spectrometry (XPS), and the EMI shielding efficiency (EMI SE) of the directly grown CNT/carbon and glass fiber-reinforced epoxy matrix composites was determined using a vector-network analyzer. As the plating time increased, a plating layer serving as a catalyst formed on the fiber surface, confirming the growth of numerous nanowire-shaped CNTs. The average EMI SET values of the carbon fiber-reinforced plastic (CFRP) and glass fiber-reinforced plastic (GFRP) with grown CNTs maximized at approximately 81 and 40 dB, respectively. Carbon fibers with grown CNTs exhibited a significantly higher EMI SET value than the glass fiber-based sample, but the latter showed a higher EMI SET increase rate. This indicates that low-cost, high-quality EMI-shielding materials can be developed through the growth of CNTs on the surface of glass fibers.
APA, Harvard, Vancouver, ISO, and other styles
34

Bharadishettar, Naveen, Udaya Bhat K, and Devadas Bhat Panemangalore. "Coating Technologies for Copper Based Antimicrobial Active Surfaces: A Perspective Review." Metals 11, no. 5 (April 26, 2021): 711. http://dx.doi.org/10.3390/met11050711.

Full text
Abstract:
Microbial contamination of medical devices and treatment rooms leads to several detrimental hospital and device-associated infections. Antimicrobial copper coatings are a new approach to control healthcare-associated infections (HAI’s). This review paper focuses on the efficient methods for depositing highly adherent copper-based antimicrobial coatings onto a variety of metal surfaces. Antimicrobial properties of the copper coatings produced by various deposition methods including thermal spray technique, electrodeposition, electroless plating, chemical vapor deposition (CVD), physical vapor deposition (PVD), and sputtering techniques are compared. The coating produced using different processes did not produce similar properties. Also, process parameters often could be varied for any given coating process to impart a change in structure, topography, wettability, hardness, surface roughness, and adhesion strength. In turn, all of them affect antimicrobial activity. Fundamental concepts of the coating process are described in detail by highlighting the influence of process parameters to increase antimicrobial activity. The strategies for developing antimicrobial surfaces could help in understanding the mechanism of killing the microbes.
APA, Harvard, Vancouver, ISO, and other styles
35

Liu, Ouyang. "Advances in Preparation Technology of Tool Coatings." Academic Journal of Science and Technology 4, no. 3 (February 8, 2023): 146–48. http://dx.doi.org/10.54097/ajst.v4i3.5047.

Full text
Abstract:
With the continuous development of modern industry and the difficult-to-machine materials gradually increases, the machining requirements of cutting tools continue to improve and the cutting environment is increasingly harsh. As the coating applies, the efficiency and precision of machining have been effectively improved. Coating on the tool surface can not only extend the service life of the cutting tool, greatly reduce the processing cost, but also reduce the environmental pollution in the process of processing. Excellent coating preparation technology is an important factor for its effective performance. According to different processing requirements, processing costs and processing environment, researchers have been working hard on the road of coating preparation technology. In this work, it summarizes the principle of physical vapor deposition, chemical vapor deposition and the corresponding advantages and disadvantages, and briefly introduces the pulsed DC magnetron sputtering, high power pulsed magnetron sputtering, arc ion plating and a variety of composite magnetron sputtering technologies.
APA, Harvard, Vancouver, ISO, and other styles
36

MITA, Mamoru. "Chemical Etching and Plating Characteristics of Vapor Deposited Copper Film Using High Purity Copper Sources." Journal of the Surface Finishing Society of Japan 48, no. 5 (1997): 533–38. http://dx.doi.org/10.4139/sfj.48.533.

Full text
APA, Harvard, Vancouver, ISO, and other styles
37

Nitskaya, Svetlana G., K. R. Smolyakova, and Irina V. Shmidt. "Optimizing the Performance of Electroplating Gas-Cleaning Equipment." Solid State Phenomena 299 (January 2020): 792–97. http://dx.doi.org/10.4028/www.scientific.net/ssp.299.792.

Full text
Abstract:
Electroplating industry has by-products, most of which are harmful. The paper considers the issue of removing aerosol emissions during chrome coating. We developed a droplet separator, which was granted a patent for a useful model. Based on the model, we proposed a stage-by-stage technical procedure for cleaning gas-air mixture to optimize the performance of gas-cleaning equipment during hard chrome coating. We calculated the amounts of water vapor and chromic anhydride which is released during chrome plating without cleaning and when using the developed procedure for gas mixture cleaning. We determined maximum surface concentrations of pollutants in exhaust gases after cleaning.
APA, Harvard, Vancouver, ISO, and other styles
38

Neumann, Anica N., Olivia D. Schneble, and Emily L. Warren. "Communication—Electrodeposition of Indium Directly on Silicon." Journal of The Electrochemical Society 169, no. 1 (January 1, 2022): 012503. http://dx.doi.org/10.1149/1945-7111/ac48c7.

Full text
Abstract:
Direct electrodeposition of indium onto silicon paves the way for advances in microelectronics, photovoltaics, and optoelectronics. Indium is generally electrodeposited onto silicon utilizing a physically or thermally deposited metallic seed layer. Eliminating this layer poses benefits in microelectronics by reducing resistive interfaces and in vapor-liquid-solid conversion to III-V material by allowing direct contact to the single-crystal silicon substrate for epitaxial conversion. We investigated conditions to directly electrodeposit indium onto n-type Si(100). We show that a two-step galvanostatic plating at low temperatures can consistently produce smooth, continuous films of indium over large areas, in bump morphologies, and conformally into inverted pyramids.
APA, Harvard, Vancouver, ISO, and other styles
39

Liu, J., S. H. Lin, and B. J. Feldman. "Characterization of boron nitride thin films synthesized by plasma-assisted chemical vapor deposition technique." Proceedings, annual meeting, Electron Microscopy Society of America 54 (August 11, 1996): 638–39. http://dx.doi.org/10.1017/s0424820100165653.

Full text
Abstract:
Boron nitride (BN) is a well-known non-oxide ceramic that has interesting and useful properties for potential industrial applications. The attractive properties of BN include its high-temperature shock stability, high electrical resistivity, anisotropic thermal conductivity and desirable mechanical properties. The potential uses of BN films include oxidation-resistant and anti-corrosive coatings, sensors, optical devices, and high temperature electronics. Thin films of BN have been obtained by a variety of growth techniques including sputtering, ion plating, evaporation, and chemical vapor deposition and associated techniques. To optimize the growth parameters and the performance of BN films, advanced electron microscopy techniques have been employed to study the structural evolution of BN films synthesized by plasma assisted chemical vapor deposition technique (PACVD).The BN films were grown in a capacitively coupled rf plasma reactor with a feedstock of diborane (B2H6), ammonia (NH3), and hydrogen (H2). The growth parameters were the same as previously reported. Chemical analyses of the grown BN films showed that they had significantly more boron (44 at.%) than nitrogen (33 at.%) and contained a large amount of hydrogen (23 at.%).
APA, Harvard, Vancouver, ISO, and other styles
40

Xie, Dong Bai, Sheng Long Zhu, Wen Jun Dai, and Fu Hui Wang. "Influence of NiCoCrAlY and Diffusion Aluminide Coating on Oxidation and Hot Corrosion of a Ni-Based Superalloy." Materials Science Forum 546-549 (May 2007): 1739–46. http://dx.doi.org/10.4028/www.scientific.net/msf.546-549.1739.

Full text
Abstract:
The most common metallic coatings used in today’s gas turbine engines are MCrAlX (where M is Ni and/or Co and X is one or more reactive elements such as Y, Hf, etc.) type overlay coatings. However, overlay coating techniques (plasma and flame spraying or physical vapor deposition) are line-of-site processes, and so, it is possible not to deposit coating on some surface of the complex turbine components. The diffusion aluminide coatings can solve this problem. A NiCoCrAlY and diffusion aluminide coating were prepared on K38G cast alloy by multi-arc ion plating and low pressure chemical vapor deposition (LP-CVD) techniques, respectively. The isothermal oxidation behavior of K38G and the coatings was studied in air at 900 and 1000 oC. Their hot corrosion behaviors in the presence of 75 wt.% Na2SO4+K2SO4 and 75wt.%Na2SO4+NaCl film at 900oC were studied. The results showed that the two kinds coatings exhibited low oxidation rate at 900 and 1000oC and the presence of salt accelerated the oxidation rate. The NiCoCrAlY coating showed the better hot corrosion resistance than the aluminide coating.
APA, Harvard, Vancouver, ISO, and other styles
41

Wang, Dan, Shi Hu, Dana Kremenakova, and Jiri Militky. "The electromagnetic shielding effectiveness of the copper plated nonwoven fabric and its’ related comfort properties." Journal of Engineered Fibers and Fabrics 17 (January 2022): 155892502211334. http://dx.doi.org/10.1177/15589250221133462.

Full text
Abstract:
With the rapid development of modern science and technology, a kind of invisible pollution named electromagnetic radiation has increasingly attracted the attention of all sectors of society. Therefore, electromagnetic shielding protective clothing is widely used by people for daily life and work. More and more scholars and researchers are paying attention to this research direction, and they have done a series of related research on how to improve the electromagnetic shielding effectiveness of clothing materials. At the same time, the related comfort properties of these clothing materials should also be concerned because they will greatly affect the wearer’s experience. This study evaluated the related comfort properties of a kind of copper-plated nonwoven materials with different electromagnetic shielding effectiveness, including air permeability, water vapor permeability, and thermal resistance. The result shows that electromagnetic shielding effectiveness is positively related to the amount of plated copper based on this kind of copper plating method. Other experiment results display that air permeability and water vapor permeability of this kind of material are negatively related to its electromagnetic shielding effectiveness. On the contrary, their thermal resistance is positively related to their electromagnetic shielding effectiveness. In addition to the above, it also found that air permeability and water vapor permeability have a positive correlation with optical porosity, and thermal resistance has a positive correlation with volume porosity.
APA, Harvard, Vancouver, ISO, and other styles
42

Serbinovskiy, Mikhail Yu, Natal'ya A. Vasil'yeva, and Olga V. Popova. "ON COMPLEXATION IN PROCESS OF CHEMICAL COPPER PLATING FROM SOLUTIONS CONTAINING POLYVINYLPYRROLIDONE." IZVESTIYA VYSSHIKH UCHEBNYKH ZAVEDENIY KHIMIYA KHIMICHESKAYA TEKHNOLOGIYA 60, no. 2 (April 7, 2017): 26. http://dx.doi.org/10.6060/tcct.2017602.5478.

Full text
Abstract:
A formation of multifunctional composite coatings with a copper matrix by chemical vapor deposition is an effective method of modifying the surface of metals and non-metals and the increase in the deposition rate of coatings. It is important that the copper complex compounds are formed during chemical vapor deposition coatings and are included in the coatings composition. During the work by methods of thermogravimetric analysis and IR spectroscopy the composite coatings with copper matrix obtained from solutions containing copper sulphate and polyvinylpyrrolidone were studied. The results of thermogravimetry and IR spectroscopy of these components were presented. Samples of composite coatings for IR spectroscopy were obtained as a suspension of the coatings in vaseline oil. Deposited coating was scraped off from the substrate, and then was triturated in an agate mortar with vaseline oil until they formed a stable not stratified suspension. These suspensions were analyzed. The samples for thermogravimetry containing copper sulfate and polyvinylpyrrolidone were obtained by mixing these components. The following proofs of interaction in polyvinylpyrrolidone - copper sulphate system with forming a complex of polyvinylpyrrolidone - copper and includings of this complex into the coating were obtained. The differences of thermogravimetric curves of the mixture CuSO4 5H2O and polyvinylpyrrolidone were established. They are softening temperature increasing in the polymer material on 30 ... 35 °С towards to the softening temperature of polyvinylpyrrolidone, the appearance of the endothermic process, probably associated with the interaction of the polyvinylpyrrolidone with the copper, and the increase in the thermal stability of the polymer component of the system on 50-60 °С, which can be also with the result of complexation of polyvinylpyrrolidone - copper. The estimated structure of this complex, which reflects the results of the IR-spectrogram of the composite coatings analysis was presented. The IR spectra have absorption bands with wave numbers corresponding to the stretching vibrations of C-H bonds in the aromatic ring of polyvinylpyrrolidone, the stretching vibrations of the group – CH2 - and C-N bonds, which are also typical for the polyvinylpyrrolidone. This indicates the presence of polyvinylpyrrolidone in the coating or in its complex compound. In the spectra of the coatings the absorption bands in the range of 1750-1250 cm-1 are presented, which correspond to the stretching vibrations of C=O in the aromatic part of polyvinylpyrrolidone compound, in particular, in the group -CONHR, but they are shifted on about 50 cm-1 with respect to the same bands in the spectra of polyvinylpyrrolidone solution. Such shift is typical for the complex compounds of polyvinylpyrrolidone - copper which caused the C=O bond deformation, which occurs during the formation of additional bond of oxygen and copper atoms: C=O ∙∙∙ Cu, and indicates the presence of such complexes in a coating.Forcitation:Serbinovskiy M.Yu., Vasil'yeva N.A., Popova O.V. On complexation in process of chemical copper plating from solutions containing polyvinylpyrrolidone. Izv. Vyssh. Uchebn. Zaved. Khim. Khim. Tekhnol. 2017. V. 60. N 2. P. 26-32.
APA, Harvard, Vancouver, ISO, and other styles
43

Kim, Young-Gu, and Do Kyung Kim. "In situ Observation of Fracture Sequence of Physical Vapor Deposited TiN Film on (1120) Sapphire." Journal of Materials Research 20, no. 6 (June 1, 2005): 1389–95. http://dx.doi.org/10.1557/jmr.2005.0201.

Full text
Abstract:
The critical parameters for the structural stability of physical vapor deposited TiN film on (1120) sapphire were investigated by analyzing the adhesion strength and failure mechanism through in situ observations of the fracture sequence during scratch tests and static normal indentation. TiN was deposited by arc ion plating on (1120) sapphire, and the thickness of the TiN film was controlled to 700 nm. Delamination of TiN film was monitored in situ from below the contact through a transparent sapphire substrate, using zoom optics mounted into a video imaging sensor. In situ observation enables us to detect the failure origin of TiN coating on sapphire. The failure origin of TiN film on (1120) sapphire was identified as both rhombohedral and basal twinning of the sapphire substrate. Rhombohedral twinning was initiated first, and basal twinning ensued. Twinning-induced plastic deformation of the sapphire substrate triggered the initiation of interfacial delamination of the TiN coating. The plastic deformation of the substrate ultimately induced failure of the protective coating.
APA, Harvard, Vancouver, ISO, and other styles
44

Minegishi, Tsutomu, Daiki Komori, Hiroji Ebe, Hiromu Kumagai, and Masakazu Sugiyama. "(Invited) Electrocatalytic Reduction of Carbon Dioxide over Aluminum-Added Coppor Oxide Gas Diffusion Electrode." ECS Meeting Abstracts MA2023-02, no. 47 (December 22, 2023): 2364. http://dx.doi.org/10.1149/ma2023-02472364mtgabs.

Full text
Abstract:
Electrochemical cells are the key technologies for construction of carbon neutral society to produce hydrogen from water and produce useful chemicals from carbon dioxide utilizing renewable energy. Copper species are the unique catalysts for electrochemical carbon dioxide reduction reaction (CO2RR) with capable of producing C2+ products such as ethanol and ethylene. Selective production of target chemical is one of the most important requirements for the catalysts, and addition of different elements and surface modifications have been reported to be beneficial for the selective production. In the present study, copper oxides-based catalysts prepared with electroless plating techniques were examined for electrochemical CO2RR. To conduct CO2RR at relatively high current densities, the catalysts were examined in the form of gas diffusion electrode (GDE). The Cu2O based GDE was prepared by the combination of physical vapor deposition and electroless plating on hydrophobized carbon paper coated with mesoporous carbon layer. After the electroless plating treatment, the metal precursors were successfully converted to core-shell structured electrocatalyst with Cu2O shell and Cu core. By introducing different elements such as aluminum to the precursor, metallic Cu, the different element added catalysts were successfully prepared in the shape of GDE. Addition of different element significantly improved durability of the core-shell structured catalysts and, as a result, faradaic efficiency of ethylene of 24 hours after starting electrolysis was increase from 32% to 47% under applying cathodic current of 260 mAcm-2. Further surface modifications with Nafion enhanced the durability and the faradaic efficiency of ethylene maintained >50% for over 48 hours and reached about 60% in maximum. In the presentation, we will discuss about the detailed structure of the electrocatalysts, results of full-cell test, and longer durability test over 100 hours.
APA, Harvard, Vancouver, ISO, and other styles
45

TSURU, Yutaka, Kouji MOCHINAGA, Michiyuki KUME, and Yashichi OOYAGI. "Application of Vapor-plated Zinc as a Substitute for Palladium Catalyst in the Nickel-Phosphorus Electroless Plating." Journal of the Surface Finishing Society of Japan 53, no. 1 (2002): 78–80. http://dx.doi.org/10.4139/sfj.53.78.

Full text
APA, Harvard, Vancouver, ISO, and other styles
46

Lupescu, Octavian, Ana Bădănac, Mădălina Popa, and Cristian Ulianov. "Researches upon Thin Layers Deposition on Cutting Inserts." Applied Mechanics and Materials 809-810 (November 2015): 339–44. http://dx.doi.org/10.4028/www.scientific.net/amm.809-810.339.

Full text
Abstract:
It is known that during the cutting process the tool wears out. This is due to the high temperatures, the relative velocities and shocks between the contact surfaces of the tool-part and the mechanical and thermal stresses which appear on the active surfaces of the tool. The result is loss of cutting and reduced processing quality. This involves taking measures to increase the values of the cutting tools and/or the durability of their cutting inserts. Tool durability can be increased by various coating methods by the depositing in a vacuum of some different materials which achieve the necessary effect. These methods are being researched globally. So far there are several methods of applying these layers. They are classified as: vacuum thermal evaporation, pulverization, ion plating and chemical vapor depositing. In order to increase the durability of the cutting tools, and to increase the wear resistance of the metal carbide insert, the authors propose in this paper the depositing of a titanium thin layer on these cutting inserts by the ionic plating method. This method has produced increased durability of the coated cutting insert and increased resistance to wear, higher than in the uncoated case. The values slightly vary depending on the complexity of the cutting insert profile and the dimensions of the work pieces dimensions being processed.
APA, Harvard, Vancouver, ISO, and other styles
47

Qi, Hua, O. J. Glembocki, and S. M. Prokes. "Plasmonic Properties of Vertically Aligned Nanowire Arrays." Journal of Nanomaterials 2012 (2012): 1–7. http://dx.doi.org/10.1155/2012/843402.

Full text
Abstract:
Nanowires (NWs)/Ag sheath composites were produced to investigate plasmonic coupling between vertically aligned NWs for surface-enhanced Raman scattering (SERS) applications. In this investigation, two types of vertical NW arrays were studied; those of ZnO NWs grown on nanosphere lithography patterned sapphire substrate via vapor-liquid-solid (VLS) mechanism and Si NW arrays produced by wet chemical etching. Both types of vertical NW arrays were coated with a thin layer of silver by electroless silver plating for SERS enhancement studies. The experimental results show extremely strong SERS signals due to plasmonic coupling between the NWs, which was verified by COMSOL electric field simulations. We also compared the SERS enhancement intensity of aligned and random ZnO NWs, indicating that the aligned NWs show much stronger and repeatable SERS signal than those grown in nonaligned geometries.
APA, Harvard, Vancouver, ISO, and other styles
48

Liu, Zheng, Zaoyu Shen, and Guanxi Liu. "Protocol for LaSmZrO/YSZ/NiCoCrAlYHf thermal barrier coatings using arc ion-plating and electron-beam physical vapor deposition." STAR Protocols 3, no. 3 (September 2022): 101627. http://dx.doi.org/10.1016/j.xpro.2022.101627.

Full text
APA, Harvard, Vancouver, ISO, and other styles
49

Ijiri, Masataka, Fumihiro Kato, Daisaku Maeda, Daichi Shimonishi, and Toshihiko Yoshimura. "Effect of Compressive Residual Stress on Film Formed by Mechanochemical Multifunction Cavitation Processing." Materials Science Forum 1016 (January 2021): 574–79. http://dx.doi.org/10.4028/www.scientific.net/msf.1016.574.

Full text
Abstract:
Recently, mechanochemical multifunction cavitation (MC-MFC) was developed to improve the corrosion resistance of the magnesium surface. MFC is a technology that combines water jet peening and ultrasound cavitation. MC-MFC is a technology that adds phosphoric acid to water. It can improve the corrosion resistance by forming a phosphate film on the Mg surface. Conventional anodic oxidation, plating, and chemical vapor deposition can improve corrosion resistance by forming a film on the Mg surface, but it is difficult to improve characteristics such as compressive residual stress on the surface. MFC-treated surfaces have previously imparted various properties such as imparting compressive residual stress necessary to improve the fatigue strength to Al alloys and Cr-Mo steels. In this study, the effect of film formed on MC-MFC processed surface on compressive residual stress was investigated.
APA, Harvard, Vancouver, ISO, and other styles
50

Deng, Bin, Jun Fei Pei, and Ye Tao. "Microstructure, Mechanical and Tribological Properties of the Tialn Coatings after Nb and C Dual Ion Implantation." Materials Science Forum 789 (April 2014): 455–60. http://dx.doi.org/10.4028/www.scientific.net/msf.789.455.

Full text
Abstract:
Ion implantation is an effective method to enhance hardness and wear resistance of the TiAlN coatings. In this paper, Nb and C ions are co-implanted into TiAlN coatings deposited by Magnetic Filter Arc Ion Plating (MFAIP), using a Metal Vacuum Vapor Arc (MEVVA) ion source implantor with doses of 1×1017and 5×1017ions/cm2. The microstructure, chemical composition, mechanical and tribological properties of Nb+C-implanted TiAlN coatings have been investigated by glancing incidence X-ray diffraction, X-ray photoelectron spectroscopy, nanoindentation test and SRV friction & wear tester, respectively. The results showed that the NbN and TiC phases could be detected both from the XRD and XPS profiles of as-prepared films. Nb and C ion implantation could improve the hardness, plastic deformation resistance and wear behavior of TiAlN coatings due to the energetic Nb and C ion bombardment and the formation of NbN and TiC phases.
APA, Harvard, Vancouver, ISO, and other styles
We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!

To the bibliography