Статті в журналах: "Glass-ceramic coating"

1

Chen, Xiang Tian, Ye Han, Shu Yu Yao, Wei Wei Zhang, Yun Sui Yao, and Zong Feng Wang. "A New High Temperature Resistant Glass–Ceramic Coating Material." Applied Mechanics and Materials 99-100 (September 2011): 810–14. http://dx.doi.org/10.4028/www.scientific.net/amm.99-100.810.

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A new glass-ceramic coating material on nickel based super alloy substrate had been found, the glass¬-ceramic coating material was developed from a glass based on MgO–Al2O3–TiO2 system. The coating material was characterized through X-ray diffractometry (XRD), scanning electron microscopy (SEM), differential scanning calorimetry (DSC), hardness, thermal expansion coefficient testing. XRD analysis of the coating materials and the resultant coatings showed presence of a number of microcrystalline phases. SEM micrographs indicated microstructure of the material. Optical micrographs showed smooth glossy impervious free surface with defects. Hardness analysis showed the glass-ceramic coating material had higher microhardness. The thermal expansion coefficient of the nimonic alloy was much higher compared to the coating material at specific temperature.

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2

Mohd Rosli, Zulkifli, Nur Hamizah Ahmad Rusli, Jariah Mohamad Juoi, and Mazidah Zainudi. "The Effect of Ceramic Substrates Surface Roughness on the Deposition of AgTiO₂ Coatings." Applied Mechanics and Materials 699 (November 2014): 9–14. http://dx.doi.org/10.4028/www.scientific.net/amm.699.9.

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This research aims to determine the effect of ceramic substrates surface roughness on the deposition of silver-titania (AgTiO2) coating. The ceramic substrates were prepared from three batch mixture of waste glass namely transparent glass (99 wt. %): carbon black (1 wt. %), green glass (85 wt. %): ball clay (15 wt. %) and transparent glass (85 wt. %): ball clay (15 wt. %) deposited with AgTiO2 using sol gel dip coating method. Ti and Ag phases have been identified via glancing angle X-Ray diffraction analysis (GAXRD). The thickness and morphology of coatings were characterized using Scanning Electron Microscopy (SEM). Analyses conducted have confirmed that AgTiO2 coating layers have been successfully deposited into various types of selected ceramic substrates. Microstructure analysis shows that coatings deposited on ceramic substrate with a moderate surface roughness of 2.13 (green glass: ball clay) produced the most homogeneous surface and uniform thickness.

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3

Huang, Yong Jun, Shuang Xi Wang, Wen Jun Wang, and Hai Feng Lan. "Study of Glass-Ceramic Coating on the SUS430 Stainless Steel Plate with High Temperature Oxidation Resistance." Solid State Phenomena 281 (August 2018): 487–92. http://dx.doi.org/10.4028/www.scientific.net/ssp.281.487.

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Currently, the ceramic inner container draws great attention in the field of induction heating pot. Based on the traditional roll-forming process for ceramic pot, a new kind process was proposed to fabricate ceramic inner container and synchronously embed stainless steel plate by one-step high temperature sintering. The key technology for this process is to avoid the oxidation of SUS430 stainless steel plate during the high temperature sintering for a longtime by coating a glass-ceramic layer. In this research, the glass-ceramic coating with excellent high temperature oxidation resistance was optimized. The influences of ZrO2 content in the coating slurry on the high temperature oxidation resistance and thermal shock resistance of SUS430 stainless steel plate with glass-ceramic coating were studied. Meanwhile, the coatings were characterized by Scanning Electron Microscopy, X-ray Diffraction and Thermal Expansion Analysis. The experimental results showed that the glass-ceramic coating was smooth and had excellent thermal shock resistance when the addition of ZrO2 reached 15wt%. The mass gain of the SUS430 stainless steel plate with glass-ceramic coating was only 0.453% after sintering at 1300°C for 10h in air atmosphere, which was less one percent than that of SUS430 stainless steel plate under the same sintering condition.

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4

Han, Ye, Shu Yu Yao, Wei Wei Zhang, Ming Gu, and Yu Sui Yao. "A Novel Wear Resistant Glass-Ceramic Coating Material." Materials Science Forum 686 (June 2011): 521–27. http://dx.doi.org/10.4028/www.scientific.net/msf.686.521.

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A novel wear resistant glass-ceramic coating system (based on SiO2-B2O3-Al2O3 glass system) on iron based substrate was developed. Friction coefficient, wear rate and coefficient of thermal expansion of coating material were evaluated using suitable methods. The coating materials and the resultant coatings were characterized using differential thermal analysis (DTA), X-ray diffraction analysis (XRD) and Scanning Electron Microscope (SEM). XRD analysis of the coating materials showed presence of a number of microcrystal. SEM micrographs indicate strong chemical bonding at the iron-ceramic interface. The coating material showed perfect properties for protection the iron substrate from abrasion.

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5

Hsueh, Chun-Hway, and Pedro Miranda. "Modeling of contact-induced radial cracking in ceramic bilayer coatings on compliant substrates." Journal of Materials Research 18, no. 5 (May 2003): 1275–83. http://dx.doi.org/10.1557/jmr.2003.0175.

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Contact-induced radial cracking in ceramic coatings on compliant substrates was analyzed recently. Radial cracks initiate at the coating/substrate interface beneath the contact where maximum flexural tension occurs, and an analytical expression for the onset of radial cracking in monolayer coatings was formulated on the basis of the classical solution for flexing plates on elastic foundation. In the present study, the analytical expression was derived for the case of ceramic bilayer coatings on compliant substrates, which have significant applications in the structure of dental crowns. It was found that the analytical solution for bilayer-coating/substrate systems can be obtained from that of monolayer-coating/substrate systems by replacing the neutral surface position and the flexural rigidity of monolayer coating with those of bilayer coating. The predicted critical loads for initiating radial cracking were found to be in good agreement with existing measurements and finite element results for glass/alumina, glass/glass-ceramic, and glass/Y2O3-stabilized ZrO2polycrystal bilayers on polycarbonate substrates. Limitations of the present analysis are discussed.

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6

Vaidya, K. J., and L. F. Francis. "Processing of calcium metaphosphate-based glass-ceramic coatings on alumina." Journal of Materials Research 11, no. 1 (January 1996): 100–109. http://dx.doi.org/10.1557/jmr.1996.0013.

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Dense, crystalline, glass-ceramic coatings containing calcium metaphosphate and aluminum phosphate were prepared on aluminum oxide substrates by a three-step method. The processing involved glass (40 mol% CaO, 10 mol% Al2O3, 50 mol% P2O5) formation, deposition of a glass particle coating, and heat treatment to sinter the glass and crystallize the phosphates. Sintering and microstructure evolution were influenced by wet coating thickness, heat-treatment temperature, time, and heating rate. Heat treatment for 1 h at 725 °C using a 50 °C/min heating rate was found to give a dense, crack-free coating. The resultant coating microstructure has spherulitic morphology (0.3 μm size) with aluminum phosphate in the center of the spherulite. The hardness of the fully crystallized glass-ceramic coating was ∼5.2 GPa.

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7

Zhang, Min Wei, Cao Gao, Yue Xia Ding, Jie Tao, and Tao Wang. "Lead-Free Oxidation- Resistant Glass-Ceramic Coating for Heat Processing of Ti-6Al-4V Alloy." Key Engineering Materials 373-374 (March 2008): 601–4. http://dx.doi.org/10.4028/www.scientific.net/kem.373-374.601.

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Now the oxidation-resistant glass-ceramic coatings have been widely used in reducing surface oxidation of Ti alloys during heat process. In present investigation, a lead-free glass-ceramic coating with wider protection temperature range was developed to protect Ti-6Al-4V alloy from oxidation. The phase compositions of the present coating and the oxygen distributions in the surface layers of Ti-6Al-4V specimens were investigated by means of XRD, as well as the metallographs of cross-section were observed and the depths of oxidized layers were determined by microhardness analysis. The results show that the present glass-ceramic coating can provide the oxidation-resistant effect over the temperature range of 500-1000oC in ambient air, with an environmentally friendly lead-free coating composition.

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8

Zhang, Wei, Tong Yang, and Shi Quan Liu. "Performance of a Waterproof Glass-Ceramic Coating." Applied Mechanics and Materials 670-671 (October 2014): 535–38. http://dx.doi.org/10.4028/www.scientific.net/amm.670-671.535.

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The surface of a porous silica ceramic substrate was coated with water impermeable lithium aluminosilicate glass-ceramic layer by sintering a slurry consisted of fine glass powder. The coating was 600~800 microns thick. It is demonstrated that the glass-ceramic coating consists of β-Li2Al2Si3O10 crystallites. The coated sample has an excellent water proof performance. After the coating, both the dielectric constant and loss increase. The coating protected the substrate from ablation under 1700°C.

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9

Russo, Francesca, Stefano Rossi, and Attilio Monzio Compagnoni. "Porcelain Enamel Coatings." Encyclopedia 1, no. 2 (April 27, 2021): 388–400. http://dx.doi.org/10.3390/encyclopedia1020032.

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Porcelain enamel is an inorganic-type coating, which is applied to metals or glass for both decorative and functional purposes. This coating is a silica-based solidified glass mass obtained by high-temperature firing (temperature can range between 450 and 1200 °C depending on the substrate). Porcelain enamel coatings differ from ceramic coatings mainly by their glass structure and dilatation coefficient, and from organic paints mainly by the inorganic nature of the matrix and the chemical bond that exists between the coating and the substrate.

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10

Karasik, Elena, and Yurii Hordieiev. "Determining the influence of the microstructure and phase composition of glass-metal-ceramic coatings on their basic physical-technical properties." Eastern-European Journal of Enterprise Technologies 6, no. 12 (114) (December 22, 2021): 53–61. http://dx.doi.org/10.15587/1729-4061.2021.244004.

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Given the development of new heat-resistant nickel alloys that operate at temperatures up to 1,250 °C, as well as the introduction of additive technologies for the production of various parts, it is a relevant task to devise new compositions of highly heat-resistant coatings. Determining the influence of the phase composition of glass-metal-ceramic coatings on its basic properties could improve the effectiveness of protecting those parts that operate under extreme conditions. Therefore, it is promising to conduct a study aimed at establishing the relationship between the microstructure and phase composition of glass-metal-ceramic coatings and the main physical-technical characteristics. This study's results have established that the most high-quality coatings were obtained on the basis of non-crystallizing glass. Such glass is characterized by a temperature coefficient of linear expansion of 92·10-7 degrees-1, a glass transition temperature of 625 °C, and surface tension of 260·10-3 N/m at 850 °C. These properties contribute to the formation of a defect-free coating, providing uniform spreading and high-quality adhesion to the substrate. The resulting optimal coating is characterized by the adhesion strength of 98 %, the thermal resistance (mode 950↔20 °C) of 50 cycles, and the high heat resistance (a weight gain after 100 h in the temperature range of 1,000‒1,050 °C) of 0.03 g/m2·h. Coatings with a minimum amount of glass bonding are distinguished by uniformity and high quality. The optimal ratio of phases "glass:metal-ceramic composition" is 10:90. The structure of the recommended coating is uniform, characterized by the homogeneous distribution of components, the absence of cracks, visible defects, and high quality. The phase composition of the coating after firing is represented by crystals of metallic nickel and silicon, as well as a small amount of residual glass phase.

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11

Torricelli, P., E. Verné, C. Vitale Brovarone, P. Appendino, F. Rustichelli, A. Krajewski, A. Ravaglioli, et al. "Biological glass coating on ceramic materials:." Biomaterials 22, no. 18 (September 2001): 2535–43. http://dx.doi.org/10.1016/s0142-9612(00)00444-0.

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12

Stanton, Kenneth T., and Jean François Vanhumbeeck. "Bioactive Apatite-Mullite Glass-Ceramic Coatings on Titanium Substrates." Advances in Science and Technology 45 (October 2006): 1275–80. http://dx.doi.org/10.4028/www.scientific.net/ast.45.1275.

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Fluorapatite-mullite glass-ceramics have been shown to be bioactive in the cerammed state and the present study examines how they may be deposited on biomedical-grade titanium alloy substrates for orthopaedic applications. A simple deposition route was used for initial application of the material in the glassy state and it was then cerammed in-situ. This cheap and non-line-of-sight route produces well adherent coatings by virtue of a reaction between the coating and substrate during the ceramming step. Several characterization techniques including DSC and XRD have been used to determine the crystallization behaviour of the glass-ceramic ex-situ and electron microscopical techniques have been used to characterize glass-ceramic microstructures and the nature of the coating-substrate interfacial region.

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13

Baino, Francesco. "Quantifying the Adhesion of Silicate Glass–Ceramic Coatings onto Alumina for Biomedical Applications." Materials 12, no. 11 (May 30, 2019): 1754. http://dx.doi.org/10.3390/ma12111754.

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Deposition of bioactive glass or ceramic coatings on the outer surface of joint prostheses is a valuable strategy to improve the osteointegration of implants and is typically produced using biocompatible but non-bioactive materials. Quantifying the coating–implant adhesion in terms of bonding strength and toughness is still a challenge to biomaterials scientists. In this work, wollastonite (CaSiO3)-containing glass–ceramic coatings were manufactured on alumina tiles by sinter-crystallization of SiO2–CaO–Na2O–Al2O3 glass powder, and it was observed that the bonding strength decreased from 34 to 10 MPa as the coating thickness increased from 50 to 300 µm. From the viewpoint of bonding strength, the coatings with thickness below 250 µm were considered suitable for biomedical applications according to current international standards. A mechanical model based on quantized fracture mechanics allowed estimating the fracture toughness of the coating on the basis of the experimental data from tensile tests. The critical strain energy release rate was also found to decrease from 1.86 to 0.10 J/m2 with the increase of coating thickness, which therefore plays a key role in determining the mechanical properties of the materials.

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14

Makarevich, Konstantin S., Oleg I. Kaminsky, and Aleksey V. Zaitsev. "An Investigation of Photocatalytic Activity of Coatings Based on Strontium Bismuthate Deposited on a Ceramic Carrier." Solid State Phenomena 316 (April 2021): 987–92. http://dx.doi.org/10.4028/www.scientific.net/ssp.316.987.

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A study was carried out to obtain effective photocatalytic coatings on a ceramic silicate carrier. The analysis of the characteristics of silicate materials, such as: ceramic carrier "Biopur"; porous glass carrier "Siporax"; glass-ceramic carrier (sitall) "Biopur forte" produced by the company "SERA", Germany, was made. According to X-ray phase analysis data, it was shown that the “Biopur” ceramic support is formed by magnesium aluminosilicates of the composition MgAl2Si3O10 and MgAl2Si4O12. The porous material “Siporax” is X-ray amorphous. The silicate material “Biopur forte” does not have a pronounced amorphous component in its structure and can be assigned to the class of sitall with a high SiO2 content and a low content of alkali and alkaline earth metal cations in the structure. A method for impregnating a ceramic support with a solution of a bismuth photo-catalyst precursor, a specially developed composition of a complex of bismuth with sorbitol, is considered. An effective concentration of a solution of a complex of bismuth with sorbitol in ethanol equal to 10% was found. By low-temperature pyrolysis at , photo-catalytically active coatings of strontium bismuthates were obtained on each of the considered types of ceramic supports. The highest photocatalytic activity was detected in the coating deposited on a ceramic carrier with a glass structure – “Biopur forte”. A study of the photocatalytic activity of coatings, based on strontium bismuthate, depending on the multiplicity of coating on a “Biopur forte” ceramic carrier, was made. The effective number of layers of the photocatalytic coating on a “Biopur forte” ceramic carrier is determined, which corresponds to the highest rate of decrease in the optical density of a model organic pollutant upon irradiation with visible light in the spectrum.

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15

Chen, Ji Hua, Bin Zhang, Zhi Hao Jin, Ji Qiang Gao, and San Jun Zhao. "Effect of Surface Roughness on Matching Properties between Ceramic Framework and Coating-Glass for Dental Applications." Key Engineering Materials 336-338 (April 2007): 1603–5. http://dx.doi.org/10.4028/www.scientific.net/kem.336-338.1603.

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This study was conducted to evaluate the influence of surface roughness on anchoring strength between ceramic and coating glass. Commercial Vita alpha glass-ceramic was selected as the coating glass, while the zirconia/alumina (Z/A) composite as the substrate. Anchoring strength between substrate and coating-glass was tested, and microstructure of the junction was also observed. From the experiments we can find the following results. There was significant difference in the mean strength of different surface roughness groups and HF acid-etching also had a favorable effect on matching properties. The highest amount of anchoring strength was occurred at the high scope of roughness after HF acid-etching and surface roughness will also affect the microstructure of the junction. Therefore, we can draw the conclusions that with the limit of this research, roughness will influence matching properties between ceramic substrate and coating-glass, while hydrofluoric acid etching was also suggested in the matching procedure. Testing matching properties between ceramic substrate and coating-glass should consider the influence of surface roughness.

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16

Nurhamizah, A. R., M. R. Zulkifli, Jariah Mohd Juoi, and Muharniza Azinita Musa. "Effect of Dipping Numbers on the Crystalline Phase and Microstructure of Ag-TiO₂ Coating." Key Engineering Materials 694 (May 2016): 133–37. http://dx.doi.org/10.4028/www.scientific.net/kem.694.133.

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Sol-gel dip-coating technique was utilized to prepare Ag-TiO2 coating with additive (Degussa P25) on unglazed ceramic tiles. Three different numbers of coating layers (5, 7 and 10 layers) were deposited on unglazed ceramic tiles made of waste glass. The coatings were sintered at 500 °C with the heating rate of 2 °C/min. The crystalline phase and cross sectional areas of the coatings were evaluated using GAXRD and SEM analysis, respectively. Results showed that the average thickness of the coating increased from 7 µm to 9 µm and to 12 µm for 5, 7 and 10 coating layers, correspondingly. Coating of 10 layers exhibited a high crystallinity of anatase phase, a good surface morphology without significant cracks, and a homogeneous coating compared to the 5 and 7 layers of coating, which suggested a better performance in Ag-TiO2 coating.

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17

Koltsova, Y. I., and V. I. Ovcharenko. "Porous glass ceramic materials with decorative-protective coating." Voprosy Khimii i Khimicheskoi Tekhnologii, no. 3 (May 2021): 100–106. http://dx.doi.org/10.32434/0321-4095-2021-136-3-100-106.

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This study was aimed at producing a porous layered glass ceramic material with a decorative-protective coating via one-stage firing. Waste products were used as gas-forming agents to fabricate a glass ceramic material, which partially solves a problem of their utilization; available natural raw materials were also used as gas-forming agents. A decorative-protective coating was applied simultaneously with the formation of the main layers of the material. It consisted of glass cullet and various amounts of coloring oxide. Firing of the samples was carried out at the temperature of 7500С. The coating containing 99.9 wt.% of glass cullet and 0.1 wt.% of Cr2O3 with the thickness of 425 m and having a greenish color was stated to be the coating of the highest quality. As a result of the research, a three-layer porous glass ceramic material was obtained with a low coefficient of thermal conductivity (0.056 W m–1 K–1). The presence of a fourth front decorative-protective layer will allow using this material in construction as a heat-insulating and structural material without additional cladding.

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18

Markhoff, Jana, Enrico Mick, Aurica Mitrovic, Juliane Pasold, Katharina Wegner, and Rainer Bader. "Surface Modifications of Dental Ceramic Implants with Different Glass Solder Matrices:In VitroAnalyses with Human Primary Osteoblasts and Epithelial Cells." BioMed Research International 2014 (2014): 1–7. http://dx.doi.org/10.1155/2014/742180.

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Ceramic materials show excellent esthetic behavior, along with an absence of hypersensitivity, making them a possible alternative implant material in dental surgery. However, their surface properties enable only limited osseointegration compared to titanium implants. Within this study, a novel surface coating technique for enhanced osseointegration was investigated biologically and mechanically. Specimens of tetragonal zirconia polycrystal (TZP) and aluminum toughened zirconia (ATZ) were modified with glass solder matrices in two configurations which mainly consisted of SiO2, Al2O3, K2O, and Na2O. The influence on human osteoblastic and epithelial cell viability was examined by means of a WST-1 assay as well as live/dead staining. A C1CP-ELISA was carried out to verify procollagen type I production. Uncoated/sandblasted ceramic specimens and sandblasted titanium surfaces were investigated as a reference. Furthermore, mechanical investigations of bilaterally coated pellets were conducted with respect to surface roughness and adhesive strength of the different coatings. These tests could demonstrate a mechanically stable implant coating with glass solder matrices. The coated ceramic specimens show enhanced osteoblastic and partly epithelial viability and matrix production compared to the titanium control. Hence, the new glass solder matrix coating could improve bone cell growth as a prerequisite for enhanced osseointegration of ceramic implants.

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19

Wang, Guangxin, Jinqing Wang, Jie Wang, Zuohe Chi, Guangxue Zhang, Zhiyi Zhou, Zhi Feng, and Yunhao Xiong. "A Sinter Visualization Device for Observing the Relationship Between Fillers and Porosity of Precursor-Derived Ceramic Coatings." Coatings 10, no. 6 (June 9, 2020): 552. http://dx.doi.org/10.3390/coatings10060552.

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Adding fillers to polysilazane (PSZ)-derived ceramic coating is one of the main methods used to reduce PSZ porosity. In this study, we designed a sinter visualization device for understanding the effect of fillers on coating porosity and observed pore evolution within the coating sintering process using different filler ratios. When there was no filler in the coating, gas evolution occurred at the initial sintering stage due to a PSZ pyrolysis reaction. In the final stage, numerous cracks appeared because of volume shrinkage. It was determined that such coatings cannot provide good protection. Although the cracks disappeared after adding glass powder, many bubbles appeared. After adding ZrO2, the bubbles in the coating significantly reduced. When the volume ratio of PSZ/glass powder/ZrO2 was 1:2:1, the coating porosity after sintering was the lowest. Based on our visualization experimental results, we concluded that the glass powder’s healing effect and the ZrO2 skeleton effect were the main reasons for the reduced coating porosity. In addition, the sinter visualization device can be used to observe the surface morphology of other similar coatings during the sintering processes.

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20

Das, S., A. K. Mukhopadhyay, S. Datta, G. C. Das, and D. Basu. "Hard glass-ceramic coating by microwave processing." Journal of the European Ceramic Society 28, no. 4 (January 2008): 729–38. http://dx.doi.org/10.1016/j.jeurceramsoc.2007.08.003.

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21

Wang, Lianjun, Changgong Meng, Changhou Liu, and Liqiu Wang. "Glass-Ceramic Protective Coating for Titanium Alloys." Journal of the American Ceramic Society 85, no. 11 (December 20, 2004): 2867–69. http://dx.doi.org/10.1111/j.1151-2916.2002.tb00547.x.

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22

Mohmmed, J. H. "A new high thermal shock resistant onelayer glass–ceramic coating for industrial and engineering applications." Journal of Achievements in Materials and Manufacturing Engineering 2, no. 82 (June 1, 2017): 70–76. http://dx.doi.org/10.5604/01.3001.0010.2357.

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Purpose: A new high thermal stability single layer glass–ceramic coating system designing for applied on various grade of steel alloy has been developed in this work. Design/methodology/approach: The thermal shock resistance, thermal conductivity and thermal expansion of the coating system were evaluated by using suitable standard tests. Some crystalline agents (Lithium oxide Li2O, Titanium oxide TiO2, Zircon ZrSiO4 and Feldspar CaO∙Al2O3∙2SiO2) were add at constant ratio 6% to coating system to evaluate their effects on the resultant coatings. Findings: The results indicate the suitability of these coatings for protection of metal substrate. Also the results show that the properties of resultant coating were hardly affected by composition and concentration of crystalline agent. Research limitations/implications: Coating with lithium oxide has the lowest thermal expansion, which means the highest thermal shock resistance. While, values of thermal conductivity were too close for all types of coating. Originality/value: Generally, the resultant coating properties have been enhanced in all cases; this is associated with the introduce the crystalline agent which lead to the formation of a complex network of crystalline phases.

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23

Parchovianský, Milan, Ivana Parchovianská, Peter Švančárek, Günter Motz, and Dušan Galusek. "PDC Glass/Ceramic Coatings Applied to Differently Pretreated AISI441 Stainless Steel Substrates." Materials 13, no. 3 (January 31, 2020): 629. http://dx.doi.org/10.3390/ma13030629.

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In this work, the influence of different cleaning procedures on adhesion of composite coatings containing passive ceramic and commercial glasses was investigated. Two compositions (C2c, D2-PP) of double-layer polymer-derived ceramic (PDC) coating systems, composed from bond coat and a top coat, were developed. In order to obtain adherent coatings, stainless steel substrates were cleaned by four different cleaning procedures. The coatings were then deposited onto the steel substrate via spray coating. Pretreatment by subsequent ultrasonic cleaning in acetone, ethanol and deionised water (procedure U) was found to be the most effective, and the resultant C2c and D2-PP coatings, pyrolysed at 850 °C, indicated strong adhesion without delamination or cracks, propagating at the interface steel/bond coat. In the substrate treated by sandblasting and chemical etching, small cracks in the bond coat were observed under the same pyrolysis conditions. After oxidation tests, all coatings, except for those subjected to the U-treated substrates, showed significant cracking in the bond coat. The D2-PP coatings were denser than C2c, indicating better protection of the substrate.

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24

Hu, Hai Bo, Yang Jia, Zhen Qi Fang, and Hong Ming Zhou. "Performance of the Glass-Ceramic Coating Prepared by Slurry Spraying Technique." Advanced Materials Research 779-780 (September 2013): 47–51. http://dx.doi.org/10.4028/www.scientific.net/amr.779-780.47.

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The SiO2-BaO-CaO-MgO-ZnO glass-ceramic (GC) coating was prepared on the surface of the nickel based alloy GH140 by slurry spraying technique. Morphology, phase and elemental composition of the glass-ceramic before or after isothermal oxidation for 96h at 1000°C were investigated by SEM, XRD and EDX,. Results showed that the glass-ceramic was mainly composed of BaSiO4 and MgCrO4, and the amount of them both increased after being oxidized for 96h. Compared with bare GH140, GC/GH140 presented a pretty good antioxidant capacity. Before oxidation, white elongated crystals were homogeneously distributed in the glass phases, and a thin transitional layer had already been formed between glass-ceramic and substrate. During the oxidation process, the surface morphology of GC/GH140 became coarse, and small black Si-rich crystals appeared and well-distributed in the coating. Meanwhile, Cr and Ti in the substrate diffused to the interface, which lead to the formation of an oxide-rich interface that protected the substrate from further oxidation.

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25

Cordero-Arias, Luis, Sandra Cabanas-Polo, Sannakaisa Virtanen, and Aldo Roberto Boccaccini. "Electrophoretic Deposition of Nanostructured Titania-Bioactive Glass/Alginate Coatings on Stainless Steel." Key Engineering Materials 654 (July 2015): 159–64. http://dx.doi.org/10.4028/www.scientific.net/kem.654.159.

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Анотація:

An alginate (Alg) based coating containing nanoparticles of titania (nTiO2) and bioactive glass 45S5 (nBG) was deposited on stainless steel substrates by electrophoretic deposition (EPD). The composite nTiO2-nBG/Alg coating developed for potential biomedical applications, was produced from a stable ethanol/water suspension (ζ–potential of-53±13mV) using 7V of deposition potential and 1min of deposition time as optimal conditions. Morphology and composition of the coatings were studied by FTIR, EDX, SEM and XRD, showing that all components were successfully deposited on the final coating. According to TG analysis the coatings presents a 62.4wt% of ceramic phase and 37.6wt% polymer. The coating shows corrosion protection properties compared with the bare uncoated material when analyzed via polarization curves in Dulbecco ́s MEM.

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Barbi, Silvia, Monia Montorsi, Consuelo Mugoni, and Cristina Siligardi. "Preparation and Characterization of LAS Glass Based Materials for Dental Applications." Key Engineering Materials 702 (July 2016): 28–31. http://dx.doi.org/10.4028/www.scientific.net/kem.702.28.

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Glass ceramic materials are widely used in dental application because of their strong similarity with natural teeth. In this study LAS glass ceramic/glass materials were prepared by glazing processing and characterized in terms of mechanical flexural strength. The selected glass ceramic support derives from an industrial process. Different glasses were applied to the glass ceramic support in order to investigate firstly their effect on the glass ceramic/glass interface and secondly how these structural changes are correlated to the flexural strength property. Different thermal cycles were applied to the glass ceramic in order to promote the increasing of mechanical flexural strength. Preliminary results clearly points out that the application of a glass on the support leads to the decrease of the flexural strength if compared to the materials without any coating applied.

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Yan, Ge, Mingyang Wang, Tao Sun, Xinping Li, Guiming Wang, and Weisong Yin. "Anti-Corrosion Property of Glass Flake Reinforced Chemically Bonded Phosphate Ceramic Coatings." Materials 12, no. 13 (June 28, 2019): 2082. http://dx.doi.org/10.3390/ma12132082.

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Glass flake (GF) was used as the reinforcement in chemically bonded phosphate ceramic (CBPC) coatings to promote anti-corrosion property. The crystalline phase, curing behavior, micromorphology and electrochemical performance of the coatings were studied. The results indicate that with the addition of magnesia (MgO), a new bonding phase (Mg3(PO4)2) can be formed, which can help the CBPCs achieve a more compact and denser structure. The effect of the magnesia and the GF additives on curing behavior is obvious: the heat of reaction of the phosphate ceramic materials increases with the addition of the magnesia and the GF, which emphasizes the higher crosslinking density in the phosphate ceramic materials. The phosphate ceramic coatings with the magnesia have a higher impedance value compared with the neat phosphate ceramic coating, while the highest impedance value is obtained with increased content of GF. The corrosion mechanism is mainly contributed by the new bonding phase and GF particles, which can hinder the permeation pathway and make the permeation more circuitous.

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28

Konegger, Thomas, Chen Chih Tsai, and Rajendra K. Bordia. "Preparation of Polymer-Derived Ceramic Coatings by Dip-Coating." Materials Science Forum 825-826 (July 2015): 645–52. http://dx.doi.org/10.4028/www.scientific.net/msf.825-826.645.

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Polysilazane-based coatings were prepared on dense and porous substrates by dip-coating. Both the pure, liquid polymer and polymer solutions in cyclohexane were investigated. Relevant properties of the coating solutions, including rheological properties and surface tension, were determined and used to predict the resulting layer thickness as a function of dip-coating parameters on dense borosilicate glass substrates. A good correlation between existing model (Landau and Levich) and experiment was found for the pure polymer. In the presence of a solvent, evaporation phenomena led to a predicted coating thickness that is much less than the experimental value for all dip coating withdrawal spends. The introduction of a correction factor was found to adequately describe the deviation. In case of porous substrates, the coating thickness could not be predicted using the model due to infiltration of the base structure, resulting in an interpenetrating ceramic composite layer after pyrolytic conversion of the preceramic polymer compound. When preparing polymer-derived ceramic films on porous base materials, e.g. for membrane applications, this phenomenon has to be taken into account.

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29

Savvova, O. V., G. K. Voronov, O. I. Fesenko, Yu O. Smirnova, and E. Bairamov. "Innovative directions of development of ceramic materials for dentistry." Кераміка: наука і життя, no. 1(50) (March 17, 2021): 19–25. http://dx.doi.org/10.26909/csl.1.2021.3.

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Анотація:

The need to improve the level of dental health of the population of Ukraine was identified. The prospects for the use of ceramic prostheses to provide quality medical care in dentistry have been established. An analytical review of various types of ceramic and glass-ceramic materials used as dental prostheses for tooth replacement: porcelain, alumina, zirconium oxide, glass-ceramics based on leucite and lithium disilicate and mica with the addition of fluorides. Peculiarities of the structure and operational properties of ceramic and glass-ceramic materials for dentistry have been identified, their advantages and disadvantages have been established. The effectiveness of the use of glass-ceramic materials based on lithium disilicate for dental prosthetics is substantiated. The basic lithium silicate system was selected and glasses for obtaining glass-ceramic crowns based on lithium disilicate by the method of high-temperature pressing and calcium phosphate-silicate system for obtaining glass-ceramic coatings were synthesized. The methodological approach to the development of glass-ceramic prostheses based on lithium disilicate is determined. The limits of the compositions of oxide components are determined and raw materials for the synthesis of the glass matrix are selected. The technological parameters of melting (T = 1350 – 1400ºС) and heat treatment with simultaneous formation of products (stage of nucleation T = 600 – 650ºС, τ = 30 – 60 min; stages of formation T = 900ºС, τ ≈ 20 min) are selected. The composition of fluoroapatite glass-ceramic coating for glazing of glass-ceramics and the mode of its firing (T = 800 – 850ºС, τ ≈ 1,0 – 1,5 min) were determined. The serviceability of the developed glass-ceramic samples DL st.glass, which were obtained by the technology of high-temperature pressing, are determined. The comparative analysis of glass-ceramic prostheses for dentistry allowed to establish that the operational properties of the developed glass-ceramic prostheses according to ISO 6872:2015 are at the level of world analogues. This will allow them to successfully compete in the Ukrainian market with well-known foreign counterparts and help ensure the social priorities of the state in the field of health care.

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30

Wang, Gaoqi, Yunkai Li, Shouren Wang, Xuefeng Yang, and Yujing Sun. "Two-Body and Three-Body Wear Behavior of a Dental Fluorapatite Glass-Ceramic." Coatings 9, no. 9 (September 13, 2019): 580. http://dx.doi.org/10.3390/coatings9090580.

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As a veneering porcelain coating of dental prosthesis, two-body and three-body wear behavior of dental glass-ceramic with the main crystalline phase of fluorapatite has not been comprehensively studied. In this work, a self-made fluorapatite glass-ceramic was synthesized and the mechanical and tribological performances of the glass-ceramic were tested, comparing with a commercial feldspathic glass-ceramic. The friction and wear experiments were performed between disk-shaped glass-ceramics and natural teeth in two-body (dry, water, saliva) and three-body (slurry) modes, respectively. Results showed that good mechanical properties of fluorapatite glass-ceramic can be achieved by the sintering process. In both two-body and three-body modes, the fluorapatite glass-ceramic had a smaller friction coefficient and wear rate and caused less damage on antagonistic teeth than the feldspathic glass-ceramic. The greater mechanical properties give fluorapatite glass-ceramic a better wear resistance and reduce the adhesive wear.

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31

Suh, Chang Min, Moon Hwan Lee, Sung Ho Kim, Dong Gyun Kim, Young Guen Choi, and Tae Young Lee. "Comparative Study of Crack Length and Damage Volumes on Ceramic Coated Glass by Particle Impact." International Journal of Modern Physics B 17, no. 08n09 (April 10, 2003): 1335–41. http://dx.doi.org/10.1142/s021797920301896x.

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A ceramic plasma-coating method that reduces impact damage from the impact by round particles to a ceramic material is suggested. A steel-ball impact test was performed to investigate and compare the damage behavior of uncoated and ceramic-coated glass relative to the impact velocity and impact energy of the steel balls. Damaged volume measured and compared, for different steel-ball diameters and types of coating materials, Al 2 O 3- TiO 2, Al 2 O 3, and Cr 2 O 3. In addition, experimental equations were derived from the results, to define the experimental properties of the damage behavior exhibited by the ceramic-coated and uncoated glass.

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32

Shi, Zai Feng, Su Min Zhang, and Su Guo. "Characteristics and Photocatalytic Activity of TiO₂ Films Immobilized on Ceramic, Glass and Stainless Steel." Applied Mechanics and Materials 295-298 (February 2013): 413–17. http://dx.doi.org/10.4028/www.scientific.net/amm.295-298.413.

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To study the effects of substrate materials on the photocatalytic activity, TiO2films were immobilized on the inner wall surface of ceramic, glass and stainless steel tubes by sol-gel method. X-ray diffraction (XRD) results indicated that the crystal form of TiO2were all anatase type with theoretical particle size of 15 nm. According to the X-ray photoelectron spectroscopy (XPS) results, appearance of the element Na was observed which would decrease the photocatalytic activity. Scanning electron microscope (SEM) photos showed that the film coating on the ceramic and glass were even and uniform with thickness of about 300 nm and practical particle size of 20 nm to 100 nm. However, the film coating on stainless steel was hackly which would lead to diffraction of lights. The degradation rate constants of methylene blue (MB) with initial concentration of 5 mg.L-1were 0.049 min-1、0.029 min-1and 0.023 min-1with films coating on ceramic, stainless steel and glass tubes respectively. Degraded with TiO2film coating on ceramic tube, the according rate constants of phenol were 0.37, 0.14, 0.04 and 0.02 min-1for initial concentration of 2, 10, 50 and 100 mg.L-1respectively.

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33

Li, Guobiao, Shouqiang Huang, Yanwen Shen, Ziyang Lou, Haiping Yuan, Nanwen Zhu, and Yancen Wei. "Synthesis of an efficient lanthanide doped glass-ceramic based near-infrared photocatalyst by a completely waterless solid-state reaction method." Dalton Transactions 48, no. 27 (2019): 9925–29. http://dx.doi.org/10.1039/c9dt01151j.

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Анотація:

A novel efficient near-infrared photocatalyst of glass-ceramic/TiO₂ was synthesized by a completely waterless solid-state reaction method, with optically active center CaF₂ in glass-ceramic powders and anatase-TiO₂ as the superficial coating.

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34

Malinina, G. A., S. S. Solntsev, and V. S. Denisova. "INFLUENS OF NON-OXID ADDITIVS ON THE PROPERTIES OF GLASS-CERAMIC COATING FOR PARTS MADE OF HEAT-RESISTANT ALLOYS (review)." Proceedings of VIAM, no. 3 (2021): 109–17. http://dx.doi.org/10.18577/2307-6046-2021-0-3-109-117.

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A review of the scientific and technical literature is presented, which provides examples of improving glass-based coatings by introducing non-oxide modifying additives. The main groups of chemical compounds that are used to improve the properties of glass-ceramic coatings are considered. Such substances include compounds based on boron, silicon and rare earth metals. It is concluded that these additives have a positive effect on the following properties of coatings: heat resistance, heat resistance, mechanical strength, coating formation temperature, temperature coefficient of linear expansion and adhesion strength to the protected material.

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35

Liu, Shu Xian, Qian Ping Wang, and Yi Miao Nie. "Properties of Iron Tailing Coatings on Stainless Steel Substrate." Advanced Materials Research 383-390 (November 2011): 3929–32. http://dx.doi.org/10.4028/www.scientific.net/amr.383-390.3929.

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Flame sprayed iron tailings coatings on the boiler steels are characterized before and after melting. The attempt has been made to investigate the microstructure, erosion resistant, wear resistant of the coated and melted samples. The techniques used are SEM and XRD. The results show that: Good adhesion between the coating and the substrate is caused by the formation of Al2SiO3 and (Cr, Fe)2O3at the interface of the coated specimen. The stainless steel substrate with ceramic coating has a higher erosiSubscript texton resistance than the uncoated specimen because the mixed powder changes to a glass-coating in the high temperature heat treatment, and a few mullite are formed. Mullite has the high hardness value that makes the hardness of the coating increased. The wear resistance of the coated samples is better than that of the uncoated samples because glass-coating is more smooth than the uncoated specimen and the mullite in the coating has the high hardness value that makes the hardness of the coating increased.

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36

Al-Khateeb, Khalid A. S., Ammar A. Mustafa, Ahmad Faris, and Agus Geter Edy Sutjipto. "Use of Porous Alumina Bioceramic to Increase Implant Osseointegration to Surrounding Bone." Advanced Materials Research 445 (January 2012): 554–59. http://dx.doi.org/10.4028/www.scientific.net/amr.445.554.

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A new experimental porous glass ceramic coating for dental implants was prepared with a new formula consisted of a sintered glass ceramic based on alumina, silica glass and boron trioxide. The resultant sintered objects were anodized by one step anodization method at a constant potential of 40V and at a temperature of 22°C. X-ray diffraction analysis was performed to investigate the phase structure of the new material in addition to SEM investigation for surface texture and pores size and distribution. The new experimental material was subjected to failure under universal testing machine for compressive strength. The results showed a promising material to use as coating for implants as X-ray diffraction exhibited an amorphous phase diagram for the material structure whereas SEM results revealed that the pores in the specimens prepared by anodization method were highly ordered and the mean average pore size was 6.5-8.5 nm. The compressive strength test showed that the test-porous glass ceramic coating has a mean numerical value of up to 7.5 MPa which indicates an ambitious result for the new material.

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37

Floristán, Miriam, Andreas Killinger, and Rainer Gadow. "Overview on Developed Functional Plasma Sprayed Coatings on Glass and Glass Ceramic Substrates." Key Engineering Materials 533 (December 2012): 115–31. http://dx.doi.org/10.4028/www.scientific.net/kem.533.115.

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Анотація:

For diverse applications in optical, electronic and consumer industries, the use of glass and glass ceramics as substrates for functional coatings is becoming of outstanding interest in order to develop advanced composites. Atmospheric Plasma Spraying (APS) is an adequate technology for the deposition of a wide variety of materials on glasses. Glass and glass ceramics are characterised by their specific thermo physical properties like low or even negative CTE, low heat conductivity and high dimensional stability. Consequently, modified production processes in comparison to the established coating operations on metal surfaces are required regarding the substrate activation methods or a more accurate heat transfer guidance to the substrate by optimized robot trajectories. This paper aims to give an overview of the investigations carried out at the IMTCCC for the development of plasma sprayed layer composites on borosilicate glass and glass ceramic substrates.

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38

Killinger, Andreas, and Rainer Gadow. "Thermally Sprayed Coating Composites for Film Heating Devices." Advances in Science and Technology 45 (October 2006): 1230–39. http://dx.doi.org/10.4028/www.scientific.net/ast.45.1230.

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Direct heated systems in white goods for medium temperature applications (approx. 250° -350° C) can be applied onto glass, glass ceramic and metal substrates by means of thermal spray techniques. Essentially, such a system requires at least two functional layers to work properly: (1) The metal coating that works as the heating element and (2) an insulator coating that electrically separates the substrate from the film heater. Therefore, the heating device combines three materials (substrate, insulator and film heater) with rather different thermophysical properties. An optimized spray deposition process with proper guidance of the heat flow is required to produce coatings that can operate under cyclic thermal load conditions. The paper discusses the influence of thermal spray process parameters as well as the applied spray powders on the electrical properties of the achieved layer structures of the respective insulator and film heater coatings.

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39

Nurhamizah, A. R., M. R. Zulkifli, and Jariah Mohd Juoi. "Effect of Additives on the Characteristic of Ag-TiO₂ Coating Deposited on Specially Made Unglazed Ceramic Tile." Key Engineering Materials 694 (May 2016): 160–64. http://dx.doi.org/10.4028/www.scientific.net/kem.694.160.

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In this research, the effect of PEG 2000 and Degussa P25 as additives on the characteristic of Ag-TiO2 coating was reported. The TiO2 coatings were produced via sol gel method using titanium (IV) isopropoxide (TTiP) as a precursor from solutions that contains additive and without additive. Seven layers of TiO2 coating were deposited on specially made unglazed ceramic tiles produced from waste glass. All coatings were deposited using dip coating technique and were sintered at 500 °C. The TiO2 coating was then immersed in an Ag nanoparticles solution before dried at 90 °C in an oven to form Ag-TiO2 coating. The coating phases and coating morphologies were analyzed using GAXRD and SEM analysis, respectively. Results show that Ag-TiO2 coating added with Degussa P25 additive exhibits a presence of more anatase and more homogenous microstructure which gives advantages for antimicrobial application as compared to others

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40

Yi, Wei, Xu Dong Sun, Dun Niu, and Xiao Zhi Hu. "On the Microstructure of a Biocomposite Fabricated from Bioceramics and 3D Ti-Mesh by Dip Coating Method." Applied Mechanics and Materials 556-562 (May 2014): 355–61. http://dx.doi.org/10.4028/www.scientific.net/amm.556-562.355.

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Sintering reactions and fine structure of a biocomposite fabricated from hydroxyapatite (HA) powder, glass-ceramic (GC) powder and titanium mesh by dip coating method were investigated. A dense GC coating was initially deposited onto 3D Ti-mesh, which is to seal off the Ti-mesh. Then, a microporous HA-GC coating was deposited on the top of the dense GC coating to promote bone regeneration. Interfacial reactions play the key role for the coatings/substrate adhesion. During the fabrication process, the Ti substrate reacted with O2and produced the TiO2(rutile phase). TixSiywas detected in the GC coating/Ti substrate interfacial region. The average bonding strength between dense GC coating and Ti substrate was 27.1 MPa.

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41

Yang, Tong, and Shiquan Liu. "Li2O–Al2O3–SiO2 glass–ceramic coating on a porous silica ceramic substrate." Journal of Alloys and Compounds 600 (July 2014): 51–54. http://dx.doi.org/10.1016/j.jallcom.2014.02.104.

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42

Ballarre, Josefina, Sergio A. Pellice, Wido H. Schreiner, and Silvia M. Ceré. "Coatings Containing Silica Nanoparticles and Glass Ceramic Particles Applied onto Surgical Grade Stainless Steel." Key Engineering Materials 396-398 (October 2008): 311–14. http://dx.doi.org/10.4028/www.scientific.net/kem.396-398.311.

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Анотація:

Metals are the most used materials as orthopaedic or dental implants for their excellent mechanical properties. However they are not able to create a natural bonding with the mineralized bone and they could release metallic particles that could finally end in the removal of the implant. A promising alternative to avoid those effects is to protect the implant with a biocompatible coating. In this work there are analyzed two kinds of protective organic-inorganic coatings made by sol gel technique with the adding of silica particles, in order to increase the barrier effect of the coating, and glass-ceramic (GC) particles with the aim of generating bioactivity. X-ray photoelectron spectroscopy (XPS) and electrochemical techniques were used to analyze the bioactive and protective response of this silica reinforced coatings with the adding GC particles applied on surgical grade stainless steel.

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43

Wang, Xiao Jing, Shu Feng Ye, H. W. Xu, L. Q. Wei, Xun Zhou, and Y. F. Chen. "Preparation and Characterization of the Decarbonization Preventing Nano-Coating Applied in Spring Steel Protection." Materials Science Forum 688 (June 2011): 238–44. http://dx.doi.org/10.4028/www.scientific.net/msf.688.238.

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Анотація:

Surface decarburization is one of important issues in spring steel production. The novel decarbonization-resistant nano-coating has been successfully fabricated, by using a low-cost, and easily accessible bauxite minerals and other additional components, including magnesia, silicon carbide，glass powder and agglomerant, which is used to prevent spring steels from being decarburized during the hot-rolling process. The microstructure of the protective nano-coating is observed by means of X-ray diffraction, TG-DTA, metalloscope and so on. It is found that even if some glass ceramic exists within the coating in the initial lower temperature (950°C~1000°C) the decarbonization-preventing coating still presents decarburization resistance up to 72.2%. Furthermore, the protective ration reaches to 100% when the heating temperature rises to range (1050°C~1100°C). The excellent decarbonization preventing properties are attributed to the formation of glass ceramic and pleonaste, which hinders the second interdiffusion of oxygen and carbon.

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44

Stanton, Kenneth T., Kevin P. O’Flynn, and Simon Newcomb. "TEM Study of the Reaction Interface between an Apatite-Mullite Glass-Ceramic and Ti6Al4V." Key Engineering Materials 361-363 (November 2007): 269–72. http://dx.doi.org/10.4028/www.scientific.net/kem.361-363.269.

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Apatite-mullite glass-ceramics have been developed as an alternative to hydroxyapatite for use in vivo as a bioactive, osseoconductive biomedical alloy coating. In the cerammed state, they present a number of advantages including control over dissolution rates and mechanical properties by altering the composition of the parent glass or heat treatment regime. In the present study, a simple sedimentation route was used to coat a biomedical titanium alloy, commonly used for orthopaedic applications. The material was deposited as a glass and cerammed in situ to create a well adheared coating that resisted delamination or cracking. To investigate the nature of the coating-substrate reaction, a number of characterization techniques were used to examine the crystallization behaviour of the glass, the glass-ceramic microstructure, and the interfacial reaction region composition. The presence of products such as titanium silicides and unexpected pores are explained by proposed reaction routes between the titanium and glass coating.

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45

Kasuga, Toshihiro, Masayuki Nogami, Mitsuo Niinomi, Tomokazu Hattori, and Larry L. Hench. "Enhancing Effect of Autoclaving on Bioactivity of ß-Titanium Alloy Coated with Calcium Phosphate Glass-Ceramic." Key Engineering Materials 284-286 (April 2005): 243–46. http://dx.doi.org/10.4028/www.scientific.net/kem.284-286.243.

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60CaO-30P2O5-7Na2O-3TiO2 (mol%) glass-ceramic can be strongly joined with a new β-type Ti-29Nb-13Ta-4.6Zr alloy. In the present work apatite-forming ability in simulated body fluid of the glass-ceramic-coated titanium alloy was enhanced by autoclaving in water at 120°C for 1 h; surface of the autoclaved coating was completely covered with apatite after 10 days of soaking. In vivo tests showed that the glass-ceramic-coated titanium alloy after autoclaving in water makes a strong bond to natural bone.

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46

Ferraris, M., M. Salvo, I. Matekovits, and A. R. Boccaccini. "Oxidation Protective Glass-Ceramic Coating for SiC Fibre Reinforced Glass Matrix Composites." Advanced Engineering Materials 6, no. 11 (November 2004): 910–14. http://dx.doi.org/10.1002/adem.200400106.

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47

Kasuga, Toshihiro, Masayuki Nogami, Mitsuo Niinomi, and Tomokazu Hattori. "CALCIUM PHOSPHATE GLASS-CERAMIC COATING ON A TITANIUM ALLOY." Phosphorus Research Bulletin 17 (2004): 29–36. http://dx.doi.org/10.3363/prb1992.17.0_29.

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48

Rosenstiel, S. F., P. K. Gupta, R. A. Van Der Sluys, and M. H. Zimmerman. "Strength of a dental glass-ceramic after surface coating." Dental Materials 9, no. 4 (July 1993): 274–79. http://dx.doi.org/10.1016/0109-5641(93)90074-z.

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49

Li, Qiaolei, Peng Song, Kaiyue Lü, Quan Dong, Qing Li, Jun Tan, Qingwei Li, and Jiansheng Lu. "Fracture behaviour of ceramic–metallic glass gradient transition coating." Ceramics International 45, no. 5 (April 2019): 5566–76. http://dx.doi.org/10.1016/j.ceramint.2018.12.015.

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50

Musa, Muharniza Azinita, Jariah Mohamad Juoi, Zulkifli Mohd Rosli, and Nur Dalilah Johari. "Effect of Degussa P25 on the Morphology, Thickness and Crystallinity of Sol-Gel TiO₂ Coating." Solid State Phenomena 268 (October 2017): 224–28. http://dx.doi.org/10.4028/www.scientific.net/ssp.268.224.

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Анотація:

The deposition of titanium dioxide, TiO2, films on various substrates was studied in order to take benefit of its antimicrobial properties for suitable application in related fields. In this paper, the effect of Degussa P25 (a commercial TiO2 nanoparticles additive in the sol) on the morphology, thickness and crystallinity of the deposited TiO2 was investigated. TiO2 films, without and with Degussa P25, were deposited on glass slides and unglazed ceramic tiles via sol-gel process. Films were deposited ten times using dip coating technique and heat treated at 500°C for 1 hour. The coating morphologies and thickness were analyzed using Scanning electron microscope (SEM), while the crystalline phases were characterized using Glancing angle X-ray Diffraction (GAXRD). Results show that the addition of Degussa P25 produces coating with homogeneous morphology and less cracks, thicker film and promotes the presence of anatase and rutile phases. It was also observed that the deposition of TiO2 with Degussa P25 on unglazed ceramic tile produced thicker film (~120mm) as compared to the film deposited on glass slide (~7mm). Thus, it can be concluded that the addition of Degussa P25 affect the morphology, thickness and crystallinity of the TiO2 coatings, whereas the type of substrate only affects the coating morphology and thickness, but not the crystallization of the TiO2 coating.

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