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Journal articles on the topic 'Amorphous metallic fiber'

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Author: Grafiati
Published: 6 July 2024

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1

Choi, Se-Jin, Ji-Hwan Kim, Sung-Ho Bae, and Tae-Gue Oh. "Strength, Drying Shrinkage, and Carbonation Characteristic of Amorphous Metallic Fiber-Reinforced Mortar with Artificial Lightweight Aggregate." Materials 13, no. 19 (October 7, 2020): 4451. http://dx.doi.org/10.3390/ma13194451.

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This paper investigates the strength, drying shrinkage, and carbonation characteristic of amorphous metallic fiber-reinforced mortar with natural and artificial lightweight aggregates. The use of artificial lightweight aggregates has the advantage of reducing the unit weight of the mortar or concrete, but there is a concern that mechanical properties of concrete such as compressive strength and tensile strength may deteriorate due to the porous properties of lightweight aggregates. In order to improve the mechanical properties of lightweight aggregate mortar, we added 0, 10, 20, and 30 kg/m3 of amorphous metallic fibers to the samples with lightweight aggregate; the same amount of fiber was applied to the samples with natural aggregate for comparison. According to this investigation, the flow of mortar decreased as the amount of amorphous metallic fiber increased, regardless of the aggregate type. The compressive strength of lightweight aggregate mortar with 10 kg/m3 amorphous metallic fiber was similar to that of the LAF0 sample without amorphous metallic fiber after 14 days. In addition, the flexural strength of the samples increased as the amount of amorphous metallic fiber increased. The highest 28-d flexural strength was obtained as approximately 9.28 MPa in the LAF3 sample, which contained 30 kg/m3 amorphous metallic fiber. The drying shrinkage of the samples with amorphous metallic fiber was smaller than that of the sample without amorphous metallic fiber.
2

Lee, Sangkyu, Gyuyong Kim, Hongseop Kim, Minjae Son, Yaechan Lee, Yoonseon Choi, Jongmyung Woo, and Jeongsoo Nam. "Electromagnetic Wave Shielding Properties of Amorphous Metallic Fiber-Reinforced High-Strength Concrete Using Waveguides." Materials 14, no. 22 (November 20, 2021): 7052. http://dx.doi.org/10.3390/ma14227052.

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In this study, high-strength concrete containing hooked-end steel or amorphous metallic fibers was fabricated, and the electrical conductivity and electromagnetic shielding effectiveness were evaluated after 28 and 208 days based on considerations of the influences of the moisture content. Amorphous metallic fibers, which have the same length and length/equivalent diameter ratio as hooked-end steel fibers, were favored for the formation of a conductive network because they can be added in large quantities owing to their low densities. These fibers have a large specific surface area as thin plates. The electromagnetic shielding effectiveness clearly improved as the electrical conductivity increased, and it can be expected that the shielding effectiveness will approach the saturation level when the fiber volume fraction of amorphous metallic fibers exceeds 0.5 vol.%. Meanwhile, it is necessary to reduce the amount of moisture to conservatively evaluate the electromagnetic shielding performance. In particular, when 0.5 vol.% of amorphous metallic fibers was added, a shielding effectiveness of >80 dB (based on a thickness of 300 mm) was achieved at a low moisture content after 208 days. Similar to the electrical conductivity, excellent shielding effectiveness can be expected from amorphous metallic fibers at low contents compared to that provided by hooked-end steel fibers.
3

Bouillard, Théophile, Anaclet Turatsinze, Jean-Paul Balayssac, Ahmed Toumi, Olivier Helson, and Xavier Bourbon. "Mechanical properties and self-sensing ability of amorphous metallic fiber-reinforced concrete." MATEC Web of Conferences 364 (2022): 02004. http://dx.doi.org/10.1051/matecconf/202236402004.

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The aim of this research work is to develop a corrosion resistant fiber-reinforced concrete for radioactive waste disposal structures. In the case of precast concrete, the use of fibers is a solution to reduce the amount of steel reinforcement while maintaining high mechanical performance and durability. Concrete has a low strain capacity and a limited tensile strength. Generally, reinforcing bars are used to ensure tensile strength. A fiber reinforcement can also help to overcome such a mechanical weakness. For this purpose, an amorphous metallic fiber (AMF), corrosion-resistant and suitable for application in severe environment conditions are used. The fresh and hardened properties of the self-compacting fiber reinforced concrete (SCFRC) are studied with volume fractions of AMF of 0% and 0.28% and with three different aspect ratios (82, 114 and 123). Flexural tensile tests according to European standard EN 14651 are conducted to quantify the contribution of the fiber reinforcement on the residual flexural tensile strength. Since these fibers are electrically conductive, they are also tested to design a smart concrete. For this purpose, electrical resistance of specimens submitted to cyclic flexural loadings are monitored using a Wheatstone bridge.
4

Lee, Bong-Chun, and Se-Jin Choi. "The Fluidity and Hardened Properties of Fiber Reinforced Mortar by Amorphous Metallic Fiber Ratios." Journal of the Architectural Institute of Korea Structure and Construction 30, no. 4 (April 25, 2014): 51–58. http://dx.doi.org/10.5659/jaik_sc.2014.30.4.051.

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5

Choi, Se-Jin, Byung-Tak Hong, Su-Jin Lee, and Jong-Pil Won. "Shrinkage and corrosion resistance of amorphous metallic-fiber-reinforced cement composites." Composite Structures 107 (January 2014): 537–43. http://dx.doi.org/10.1016/j.compstruct.2013.08.010.

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6

Javed, Ayesha, Syed Asad Ali Gillani, Wasim Abbass, Muhammad Rizwan Riaz, Rashid Hameed, Safeer Abbas, Abdelatif Salmi, and Ahmed Farouk Deifalla. "Mechanical Performance of Amorphous Metallic Fiber-Reinforced and Rubberized Thin Bonded Cement-Based Overlays." Sustainability 14, no. 13 (July 5, 2022): 8226. http://dx.doi.org/10.3390/su14138226.

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To improve the flexural behavior of thin bonded cement-based overlays, this study was carried out on the use of repair material incorporating amorphous metallic fibers (AMFs) in combination with the rubber aggregates obtained from grinding of worn-out tires. For this study, sixteen mortar mix compositions were prepared to contain AMFs and/or rubber aggregates to be used as overlay material while the substrate used was plain cement mortar. Rubber aggregates were incorporated at three different replacement ratios (i.e., 10%, 20% and 30%) by an equivalent volume of sand, and AMFs were added in three different dosages (i.e., 10 kg/m3, 20 kg/m3 and 30 kg/m3). In this study, composite beams (500 × 100 × 140 mm) comprising substrate (500 × 100 × 100 mm) and repair layer (500 × 100 × 40 mm) were prepared and investigated under flexural loading. Experimental results showed that the increase in rubber content resulted in a decrease compressive strength, flexural strength and modulus of elasticity. Rubberized fiber-reinforced cementitious composites (30R30F) exhibited higher flexural toughness and the flexural toughness improved up to 400%. Toughness and maximum deflection of composite beams enhanced significantly due to synergetic effect of AMF and rubber aggregates. It was observed that before peak load, rubber plays its role by delaying the micro-crack propagation. Results also revealed that the steel fibers reinforcement plays an important role in restraining the crack openings under flexure loading. In the post-peak region, steel fibers control the cracks from propagating further by bridging action and provide higher post-peak residual strength.
7

Lee, Jaesung, Seungcho Yang, and Okpin Na. "Experimental Study on the Mechanical Properties of Amorphous Metallic Fiber-Reinforced Concrete." Journal of the Korean Society of Hazard Mitigation 18, no. 3 (April 30, 2018): 1–6. http://dx.doi.org/10.9798/kosham.2018.18.3.1.

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8

Dinh, Ngoc-Hieu, Kyoung-Kyu Choi, and Hee-Seung Kim. "Mechanical Properties and Modeling of Amorphous Metallic Fiber-Reinforced Concrete in Compression." International Journal of Concrete Structures and Materials 10, no. 2 (June 2016): 221–36. http://dx.doi.org/10.1007/s40069-016-0144-9.

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9

Kim, Hongseop, Gyuyong Kim, Jeongsoo Nam, Junghyun Kim, Sanghyu Han, and Sanggyu Lee. "Static mechanical properties and impact resistance of amorphous metallic fiber-reinforced concrete." Composite Structures 134 (December 2015): 831–44. http://dx.doi.org/10.1016/j.compstruct.2015.08.128.

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10

Lee, Sangkyu, Gyuyong Kim, Hongseop Kim, Minjae Son, Gyeongcheol Choe, Koichi Kobayashi, and Jeongsoo Nam. "Impact resistance, flexural and tensile properties of amorphous metallic fiber-reinforced cementitious composites according to fiber length." Construction and Building Materials 271 (February 2021): 121872. http://dx.doi.org/10.1016/j.conbuildmat.2020.121872.

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11

Bucholtz, F., K. P. Koo, A. M. Yurek, J. A. McVicker, and A. Dandridge. "Preparation of amorphous metallic glass transducers for use in fiber optic magnetic sensors." Journal of Applied Physics 61, no. 8 (April 15, 1987): 3790–92. http://dx.doi.org/10.1063/1.338647.

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12

Dang, Cong-Thuat, My Pham, and Ngoc-Hieu Dinh. "Experimental Study on Compressive and Flexural Performance of Lightweight Cement-Based Composites Reinforced with Hybrid Short Fibers." Materials 16, no. 12 (June 19, 2023): 4457. http://dx.doi.org/10.3390/ma16124457.

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This paper aims to experimentally study the compressive and flexural characteristics of cement-based composites developed for fabricating thin, lightweight, and high-performance components of buildings. Expanded hollow glass particles with a 0.25–0.5 mm particle size were used as lightweight fillers. Hybrid fibers made of amorphous metallic (AM) and nylon fibers were used to reinforce the matrix with a total volume fraction of 1.5%. The primary test parameters included the expanded glass-to-binder (EG/B) ratio, the fiber volume content ratio, and the length of the nylon fibers in the hybrid system. The experimental results demonstrate that the EG/B ratio and the volume dosage of the nylon fibers exhibited insignificant effects on the compressive strength of the composites. Additionally, the utilization of nylon fibers with a longer length of 12 mm resulted in a slight compressive strength reduction of approximately 13% compared to that of the 6 mm nylon fibers. Further, the EG/G ratio exhibited an insignificant effect on the flexural behavior of lightweight cement-based composites in terms of their initial stiffness, strength, and ductility. Meanwhile, the increasing AM fiber volume fraction in the hybrid system from 0.25% to 0.5% and 1.0% improved flexural toughness by 42.8% and 57.2%, respectively. In addition, the nylon fiber length significantly affected the deformation capacity at the peak load and the residual strength in the post-peak stage.
13

Kim, Hongseop, Gyuyong Kim, Sangkyu Lee, Gyeongcheol Choe, Takafumi Noguchi, and Jeongsoo Nam. "Direct tensile behavior of amorphous metallic fiber-reinforced cementitious composites: Effect of fiber length, fiber volume fraction, and strain rate." Composites Part B: Engineering 177 (November 2019): 107430. http://dx.doi.org/10.1016/j.compositesb.2019.107430.

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14

Park, Ji Hun, Young Uk Kim, Jisoo Jeon, Seunghwan Wi, Seong Jin Chang, and Sumin Kim. "Effect of eco-friendly pervious concrete with amorphous metallic fiber on evaporative cooling performance." Journal of Environmental Management 297 (November 2021): 113269. http://dx.doi.org/10.1016/j.jenvman.2021.113269.

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15

Ferdiansyah, Teuku, Anaclet Turatsinze, and Jean-Paul Balayssac. "Design and characterization of self-sensing steel fiber reinforced concrete." MATEC Web of Conferences 199 (2018): 11008. http://dx.doi.org/10.1051/matecconf/201819911008.

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The purpose of this communication is to develop a self-sensing cement composite capable of detecting stress variation in concrete by monitoring its electrical property. The relationship between the electrical properties, i.e. electrical resistance of steel fiber reinforced concrete, and stress under loading as part of self-sensing study is presented in here. Amorphous metallic fibers (AMF) with two different lengths i.e. 10 mm and 30 mm are used as concrete reinforcement at a content of 40 kg/m3. A water to cement ratio of 0.39 was adopted for the mix proportions. Natural fine and coarse siliceous aggregates were used for this research. Superplasticizer was used to achieve the target of workability. The two-probe method is used for measuring electrical properties on cylinder specimens with diameter 100 mm and height 200 mm. The influence of different parameters such as fiber length, frequency of power input, maximum stress and variation of potential input on the sensitivity of the sensing are investigated. The results indicate that the electrical resistance of the concrete decreases reversibly during loading and increases reversibly during unloading. Good sensitivity obtained for the mix using 30 mm AMF length indicates that the addition of this type of fiber into concrete can be suitable to produce a self-sensing cement composite.
16

Veber, Alexander, Zhuorui Lu, Manuel Vermillac, Franck Pigeonneau, Wilfried Blanc, and Laeticia Petit. "Nano-Structured Optical Fibers Made of Glass-Ceramics, and Phase Separated and Metallic Particle-Containing Glasses." Fibers 7, no. 12 (November 30, 2019): 105. http://dx.doi.org/10.3390/fib7120105.

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For years, scientists have been looking for different techniques to make glasses perfect: fully amorphous and ideally homogeneous. Meanwhile, recent advances in the development of particle-containing glasses (PCG), defined in this paper as glass-ceramics, glasses doped with metallic nanoparticles, and phase-separated glasses show that these “imperfect” glasses can result in better optical materials if particles of desired chemistry, size, and shape are present in the glass. It has been shown that PCGs can be used for the fabrication of nanostructured fibers—a novel class of media for fiber optics. These unique optical fibers are able to outperform their traditional glass counterparts in terms of available emission spectral range, quantum efficiency, non-linear properties, fabricated sensors sensitivity, and other parameters. Being rather special, nanostructured fibers require new, unconventional solutions on the materials used, fabrication, and characterization techniques, limiting the use of these novel materials. This work overviews practical aspects and progress in the fabrication and characterization methods of the particle-containing glasses with particular attention to nanostructured fibers made of these materials. A review of the recent achievements shows that current technologies allow producing high-optical quality PCG-fibers of different types, and the unique optical properties of these nanostructured fibers make them prospective for applications in lasers, optical communications, medicine, lighting, and other areas of science and industry.
17

Yoo, Doo-Yeol, Nemkumar Banthia, Jun-Mo Yang, and Young-Soo Yoon. "Size effect in normal- and high-strength amorphous metallic and steel fiber reinforced concrete beams." Construction and Building Materials 121 (September 2016): 676–85. http://dx.doi.org/10.1016/j.conbuildmat.2016.06.040.

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18

Lee, Jae-In, Chae-Young Kim, Joo-Ho Yoon, and Se-Jin Choi. "Study on the Engineering Properties of Cement Composites Using Carbon Nanotubes and Amorphous Metallic Fiber." Journal of the Korea Concrete Institute 36, no. 1 (February 29, 2024): 73–84. http://dx.doi.org/10.4334/jkci.2024.36.1.073.

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19

Howe, James M. "In situ high-resolution Transmission electron microscopy of interphase boundary motion in metallic alloys." Proceedings, annual meeting, Electron Microscopy Society of America 49 (August 1991): 450–51. http://dx.doi.org/10.1017/s0424820100086556.

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Information provided by in situ studies is often essential for understanding microstructural evolution in solids. The recent development of intermediate-voltage high-resolution transmission electron microscopes (HRTEM) with in situ heating capabilities now provides the opportunity to perform in situ high-resolution studies of interphase boundary (IPB) motion. This paper presents initial results on in situ HRTEM studies of IPB motion in metallic alloys, in particular, during growth of Q precipitates in an Al-Cu-Mg-Ag alloy and Pd3Si crystals in an amorphous Pd-Si alloy.Samples of an Al-4Cu-0.5Mg-0.5Ag (wt.%) alloy were aged for 24 hr at 250°C and electropolished in a HNO3/methanol solution; samples of an amorphous Pd80Si20 (at.%) ribbon were ion milled in a liquid-nitrogen cold-stage at 6 kV, 0.3 mA and 15° tilt. The samples were examined at 400 kV in a JEOL 4000EX microscope equipped with a UHP40X hot-stage pole piece and double-tilt holder at temperatures of 200-400°C. Images were recorded on a Sony BetaCam video cassette recorder connected to a Gatan fiber-optically coupled TV camera with an image intensifier. A 35 mm camera was used to obtain photographs directly from the TV monitor during playback of the video cassettes.
20

Kim, Hongseop, Gyuyong Kim, Sangkyu Lee, Gyeongcheol Choe, Jeongsoo Nam, Takafumi Noguchi, and Viktor Mechtcherine. "Effects of strain rate on the tensile behavior of cementitious composites made with amorphous metallic fiber." Cement and Concrete Composites 108 (April 2020): 103519. http://dx.doi.org/10.1016/j.cemconcomp.2020.103519.

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21

Choe, Gyeongcheol, Gyuyong Kim, Hongseop Kim, Euichul Hwang, Sangkyu Lee, and Jeongsoo Nam. "Effect of amorphous metallic fiber on mechanical properties of high-strength concrete exposed to high-temperature." Construction and Building Materials 218 (September 2019): 448–56. http://dx.doi.org/10.1016/j.conbuildmat.2019.05.134.

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22

Pavlov, V. F., and V. F. Shabanov. "Complex Pyrometallurgical Processing of Silicate Raw Material and Technogenic Waste into Market Products." Ecology and Industry of Russia 22, no. 12 (December 4, 2018): 14–18. http://dx.doi.org/10.18412/1816-0395-2018-12-14-18.

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A new approach to solving the problem of complex nonwaste processing of bottom ash waste (BAW) of low-grade metallic and nonmetallic feeds has been set forth. The solution is based on deep recreative melting of various burden materials with dividing the flux into a metallic phase and a silicate part that virtually does not contain any metal oxides. It has been shown that, depending on the method of producing the flux, various materials are generated: a foamed X-ray amorphous material (foamed silicate) with a stable formulation, a fine mineral fiber or spheres depending on technological modes. It follows from this work that the obtained foamed material is a semiproduct used as a fill insulation, a raw material for manufacturing foam ceramics and optically transparent glasses in the visible and near-IR ranges, and a sorbent for collection of oil products. On the basis of the experimental data, an industrial waste processing facility has been developed.
23

Zhou, Feng, Chengxin Du, Zhonghua Du, Guangfa Gao, Chun Cheng, and Xiaodong Wang. "Penetration Gain Study of a Tungsten-Fiber/Zr-Based Metallic Glass Matrix Composite." Crystals 12, no. 2 (February 18, 2022): 284. http://dx.doi.org/10.3390/cryst12020284.

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A tungsten fiber/Zr-based bulk metallic glass matrix composite (Wf/Zr-MG) is a potential penetrator material. To compare and analyze the penetration behavior of Wf/Zr-MG and a tungsten heavy alloy (WHA), a penetration experiment into the 30CrMnMo homogeneous armor target plate (RHA) is conducted in the present paper, by using a 37 mm smooth bore artillery with an impact velocity of 1550 ± 40 m/s. Unlike the penetrator made of WHA, the self-sharpening phenomenon was observed in the nose of the Wf/Zr-MG rod. The experimental results indicate that the penetration ability of Wf/Zr-MG rod is approximately 10% higher than that of the WHA rod when the impact velocity is 1550 ± 40 m/s. The combined findings on the microscopic morphology, composition, hardness distribution around the crater, and the macroscopic structure of the penetrator residual show that under this impact velocity, the Wf/Zr-MG material shows amorphous gasification. The Wfs outside the rod shows bending and backflow, resulting in the maintenance of the self-sharpening nose of the penetrator during the penetration process. Moreover, the hardness peak around the crater formed by the Wf/Zr-MG rod is lower, and the penetration crater is straighter, indicating that the Wf/Zr-MG rod has a stronger slag removal ability, lower penetration resistance, and higher penetration efficiency. It is an ideal penetrator material.
24

Haubner, Roland, and Mario Lessiak. "Deposition of CVD Diamond Coatings on Carbon Fiber Composite Substrates." Key Engineering Materials 742 (July 2017): 419–26. http://dx.doi.org/10.4028/www.scientific.net/kem.742.419.

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Boron doped diamond coatings are used in electrochemistry, due to the high overvoltage for oxygen generation. Niobium is often used as bulk material, but also diamond deposition on titanium was demonstrated. For metallic bulk materials corrosion can take place in case of defects in the diamond coating. This problem can be avoided by using carbon based substrates. Diamond deposition on carbon substrates is difficult, because atomic Hydrogen needed for diamond growth attacks graphitic and amorphous carbon. These reactions have the effects that carbon in the substrate is etched and the amount of atomic hydrogen needed for diamond growth is reduced. To reduce the carbon etching on the substrate, the duration till diamond layer formation should be short. By controlling the diamond deposition conditions, boron addition and seeding with diamond prior to deposition, the formation of diamond coatings on carbon fibre composites (CFC) is possible. Electrochemical measurements of the boron doped diamond coatings verified the excellent electrochemical properties of the samples, e.g. good electrical conductivity, high overvoltage for oxygen and hydrogen but also chemical inertness.
25

Miah, Md Jihad, Junjie Pei, Hyeju Kim, and Jeong Gook Jang. "Flexural behavior, porosity, and water absorption of CO2-cured amorphous metallic-fiber-reinforced belite-rich cement composites." Construction and Building Materials 387 (July 2023): 131668. http://dx.doi.org/10.1016/j.conbuildmat.2023.131668.

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26

Lee, Kyuhong, Chang-Young Son, Sang-Bok Lee, Sang-Kwan Lee, and Sunghak Lee. "Direct observation of microfracture process in metallic-continuous-fiber-reinforced amorphous matrix composites fabricated by liquid pressing process." Materials Science and Engineering: A 527, no. 4-5 (February 2010): 941–46. http://dx.doi.org/10.1016/j.msea.2009.09.065.

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27

Lim, Sang-Won, and Jeung-Soo Huh. "Interfacial Layer Effect on the Adhesion of the Ultra-Hard Thick TAC Film Deposition." Korean Journal of Metals and Materials 61, no. 3 (March 5, 2023): 157–69. http://dx.doi.org/10.3365/kjmm.2023.61.3.157.

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Carbon-based thin film tool coatings, such as diamond-like carbon (DLC), have excellent lowfriction and anti-sticking properties. These thin films are widely used for the cutting and machining of increasingly widely-used lightweight non-metallic and non-ferrous metal materials, as a part of countermeasures against global warming. However, non-metallic and non-ferrous metal materials are significantly inferior in strength and heat resistance compared to iron-based metals. Therefore, they are primarily employed in high-content fiber reinforced composite materials, which significantly improves their mechanical and thermal properties. Tetrahedral amorphous carbon (TAC) coating has a hardness level similar to diamond coating. However, when TAC is deposited as a thick film, delamination of the coating layer may occur because of the high internal compressive stress between the carbide-based substrate and coating layer, thereby restricting its scalability to other applications. Other factors to be controlled for thick film TAC deposition include minimizing droplets generated during the coating process, and improving interfacial properties like hardness and fatigue resistance. Here, C in the form of CH4, which has high solubility over Cr and forms various compounds, was added during the interfacial deposition process, between the carbide and TAC, to improve interfacial strength and adhesion by precipitation of carbide at the interface. This eventually led to thick TAC film with the thickness and adhesion of commercially viable thick film.
28

Awad, Ali, Israr Ahmed, Danial Qadir, Muhammad Saad Khan, and Alamin Idris. "Catalytic Decomposition of 2% Methanol in Methane over Metallic Catalyst by Fixed-Bed Catalytic Reactor." Energies 14, no. 8 (April 16, 2021): 2220. http://dx.doi.org/10.3390/en14082220.

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The structure and performance of promoted Ni/Al2O3 with Cu via thermocatalytic decomposition (TCD) of CH4 mixture (2% CH3OH) were studied. Mesoporous Cat-1 and Cat-2 were synthesized by the impregnation method. The corresponding peaks of nickel oxide and copper oxide in the XRD showed the presence of nickel and copper oxides as a mixed alloy in the calcined catalyst. Temperature program reduction (TPR) showed that Cu enhanced the reducibility of the catalyst as the peak of nickel oxide shifted toward a lower temperature due to the interaction strength of the metal particles and support. The impregnation of 10% Cu on Cat-1 drastically improved the catalytic performance and exhibited 68% CH4 conversion, and endured its activity for 6 h compared with Cat-1, which deactivated after 4 h. The investigation of the spent carbon showed that various forms of carbon were obtained as a by-product of TCD, including graphene fiber (GF), carbon nanofiber (CNF), and multi-wall carbon nanofibers (MWCNFs) on the active sites of Cat-2 and Cat-1, following various kinds of growth mechanisms. The presence of the D and G bands in the Raman spectroscopy confirmed the mixture of amorphous and crystalline morphology of the deposited carbon.
29

Janusz, M., L. Major, J. M. Lackner, B. Grysakowski, and H. Krawiec. "Microstructure characterization of localized corrosion wear of Cr/Cr2N+ a-C:H/a-C:H:Cr multilayer coatings on carbon fiber composites." Bulletin of the Polish Academy of Sciences Technical Sciences 65, no. 2 (April 1, 2017): 171–77. http://dx.doi.org/10.1515/bpasts-2017-0021.

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Abstract The use of carbon fiber composites (CFC) for different applications is widespread. Carbon-based materials show, however, significant oxidative degradation in air. Modern materials are subjected to aggressive, corrosive environment. This type of environment may strongly reduce their mechanical properties. For the protection of CFC, it was necessary to apply coatings to the composite surface. In the presented paper, a chromium/chromium nitride (Cr/Cr2N) multilayer structure has been selected as the inner part. The outer part of the coating was a hydrogenated amorphous carbon (a-C:H), gradually implanted by Cr nanocrystals. The application of transmission electron microscopy (TEM) indicated that the proposed deposition method allowed the formation of a Cr/Cr2N multilayer of Λ = 150 nm, topped with a-C:H+ Cr23C6 composite of a varied carbides density. The micro-hardness of the deposited coatings was up to 14 GPa (at a load of 2 and 5 mN). The microstructure of the deposited coatings was described in detail by means of TEM in the authors’ recently published paper [1]. This paper is a continuation thereof, aimed at describing microstructure changes after a localized corrosion process. In order to study localized corrosion in coatings, particularly in metallic (Cr) interlayers, the potential measurements and voltammetry experiments were performed in a Ringer solution. The open-circuit potential reaches stable values after a sufficient time period. The results indicated that the presence of a-C:H+Cr23C6, the outer part of the coating, speeds up the localized corrosion process in Cr interlayers in the inner part of a coating.
30

Guo, Yajie, Yongjie Liu, Yanrong Liu, Chunrui Zhang, Kelun Jia, Jibo Su, and Ke Wang. "The High Electrocatalytic Performance of NiFeSe/CFP for Hydrogen Evolution Reaction Derived from a Prussian Blue Analogue." Catalysts 12, no. 7 (July 4, 2022): 739. http://dx.doi.org/10.3390/catal12070739.

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Non-noble-metal-based chalcogenides are promising candidates for hydrogen evolution reaction (HER) by harnessing the architectural design and the synergistic effect between the elements. Herein, a porous bimetallic selenide (NiFeSe) nanocube deposited on carbon fiber paper (NiFeSe/CFP) was synthesized through a facile selenization reaction based on Prussian blue analogues (PBAs) as precursors. The NiFeSe/CFP exhibited excellent HER activity with an overpotential of just 186 mV for a current density of 10 mA cm−2 in 1.0 M KOH at ambient temperature, similar to most of the state-of-the-art transition metal chalcogenides. The corresponding Tafel slope was calculated to be 52 mV dec−1, indicating fast discharge of the proton during the HER. Furthermore, the catalyst could endure long-term catalytic tests and showed remarkable durability. The enhanced electrocatalytic performance of NiFeSe/CFP is attributed to the unique 3D porous configuration inherited from the PBA templates, enhanced charge transfer occurring at the heterogeneous interface due to the synergistic effect between the bimetallic phases, and the high conductivity improved by the formation of amorphous carbon shells during the selenization. These findings prove that the combination of inexpensive metal–organic framework precursors and hybrid metallic compounds is a feasible way to realize the performance enhancement of non-noble-metal-based chalcogenides towards alkaline HER.
31

Georgarakis, Konstantinos, Dina V. Dudina, and Vyacheslav I. Kvashnin. "Metallic Glass-Reinforced Metal Matrix Composites: Design, Interfaces and Properties." Materials 15, no. 23 (November 22, 2022): 8278. http://dx.doi.org/10.3390/ma15238278.

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When metals are modified by second-phase particles or fibers, metal matrix composites (MMCs) are formed. In general, for a given metallic matrix, reinforcements differing in their chemical nature and particle size/morphology can be suitable while providing different levels of strengthening. This article focuses on MMCs reinforced with metallic glasses and amorphous alloys, which are considered as alternatives to ceramic reinforcements. Early works on metallic glass (amorphous alloy)-reinforced MMCs were conducted in 1982–2005. In the following years, a large number of composites have been obtained and tested. Metallic glass (amorphous alloy)-reinforced MMCs have been obtained with matrices of Al and its alloys, Mg and its alloys, Ti alloys, W, Cu and its alloys, Ni, and Fe. Research has been extended to new compositions, new design approaches and fabrication methods, the chemical interaction of the metallic glass with the metal matrix, the influence of the reaction products on the properties of the composites, strengthening mechanisms, and the functional properties of the composites. These aspects are covered in the present review. Problems to be tackled in future research on metallic glass (amorphous alloy)-reinforced MMCs are also identified.
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Kim, S. W., J. Namkung, and Ohjoon Kwon. "Manufacture and Industrial Application of Fe-Based Metallic Glasses." Materials Science Forum 706-709 (January 2012): 1324–30. http://dx.doi.org/10.4028/www.scientific.net/msf.706-709.1324.

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Metallic glass alloys have been considered as attractive materials due to their excellent mechanical and magnetic properties. However, commercial application of metallic glasses has been limited not only because of high production cost, but because of low market demands. A critical production cost factor was raw material since ferrous metallic glasses were made from high purity electrolytic iron. An idea to reduce the cost was to utilize the raw materials which were taken directly from molten iron and steel manufactured at the existing steel plants. Investigations have been performed to find whether metallic glasses made of molten iron and steel demonstrated appropriate mechanical and magnetic performance. Pilot scale equipments were designed to produce amorphous metallic fibers and strips continuously under the atmospheric condition. Process conditions were optimized by controlling process variables such as alloying and nozzle design, feeding temperature, speed and so on. The glass formability was tested by XRD and DSC analysis. Possibilities of application of Fe-based metallic glasses to reinforced concrete were also evaluated. It was confirmed that a small addition of metallic glass fibers in concrete increased the mechanical performance compared to that of commercial concrete reinforced with steel wires. In addition, amorphous strips were manufactured to apply them to the transformer core. It has been demonstrated that the magnetic properties were equivalent to those of commercial products.
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Choi, Kyoung-Kyu, Hajin Choi, and Jong-Chan Kim. "Shrinkage cracking of amorphous metallic fibre-reinforced concrete." Proceedings of the Institution of Civil Engineers - Structures and Buildings 168, no. 4 (April 2015): 287–97. http://dx.doi.org/10.1680/stbu.13.00084.

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Choi, Kyoung-Kyu, Gia Toai Truong, and Se-Jin Choi. "Restrained shrinkage cracking of amorphous metallic fibre-reinforced concrete." Proceedings of the Institution of Civil Engineers - Structures and Buildings 168, no. 12 (December 2015): 902–14. http://dx.doi.org/10.1680/stbu.14.00051.

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Kim, Hyun Guen, Kazuhiro Nakata, Takuya Tsumura, Masaharu Sugiyama, Takanori Igarashi, Masahiro Fukumoto, Hisamichi Kimura, and Akihisa Inoue. "Effect of Particle Size Distribution of the Feedstock Powder on the Microstructure of Bulk Metallic Glass Sprayed Coating by HVOF on Aluminum Alloy Substrate." Materials Science Forum 580-582 (June 2008): 467–70. http://dx.doi.org/10.4028/www.scientific.net/msf.580-582.467.

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The Fe-based bulk metallic glass (Fe43Cr16Mo16C15B10) sprayed coating with the thickness about 220%m was successfully deposited on an aluminum alloy (A5052) metal substrate using an HVOF (High Velocity Oxygen Fuel) spraying process. All sprayed coating has still kept the amorphous state after spraying. The Fe-based bulk metallic glass coating shows good adhesion to the aluminum alloy metal substrate, and has a high hardness with HMV 913~1120. It has been found that better properties can be obtained in the sprayed coating by using finer powder.
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Wu, Zhang, Chen, Li, and Zhang. "A Multiple Twin-Roller Casting Technique for Producing Metallic Glass and Metallic Glass Composite Strips." Materials 12, no. 23 (November 21, 2019): 3842. http://dx.doi.org/10.3390/ma12233842.

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To date it has not been possible to produce metallic glass strips with a thickness larger than 150 m via single-roller melt spinning technique, and it remains challenging to produce thick metallic glass strips. In this work, a multiple twin-roller casting technique is proposed for producing thick metallic glass and metallic glass composite strips. A triple twin-roller casting device, as a specific case of the multiple twin-roller, was designed and manufactured. The triple twin-roller device possesses a high cooling rate and involves a long contact time between the melt and the strip, which makes it an efficient technique for producing metallic glass strips that avoids crystallization, although the solidification temperature ranges of metallic glasses are as wide as several hundred Kelvins. The two prepared metallic glass (MG) strips are in a fully amorphous state, and the MG strip shows excellent capacity of stored elastic energy under 3-point bending. Furthermore, the Ti-based metallic glass composite strip produced via the triple twin-roller casting exhibits a novel microstructure with much finer and more homogenously orientated -Ti crystals, as compared with the microstructure of metallic glass composites produced by the common copper mold casting technique.
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Yang, Jun-Mo, Jin-Kook Kim, and Doo-Yeol Yoo. "Effects of amorphous metallic fibers on the properties of asphalt concrete." Construction and Building Materials 128 (December 2016): 176–84. http://dx.doi.org/10.1016/j.conbuildmat.2016.10.082.

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Jiang, Chenchen, Haojian Lu, Ke Cao, Wenfeng Wan, Yajing Shen, and Yang Lu. "In Situ SEM Torsion Test of Metallic Glass Microwires Based on Micro Robotic Manipulation." Scanning 2017 (2017): 1–7. http://dx.doi.org/10.1155/2017/6215691.

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Microwires, such as metallic, semiconductor, and polymer microwires and carbon fibers, have stimulated great interest due to their importance in various structural and functional applications. Particularly, metallic glass (MG) microwires, because of their amorphous atoms arrangement, have some unique mechanical properties compared with traditional metals. Despite the fact that substantial research efforts have been made on the mechanical characterizations of metallic glass microwires under tension or flexural bending, the mechanical properties of microwires under torsional loading have not been well studied, mainly due to the experimental difficulties, such as the detection of torsion angle, quantitative measurement of the torsional load, and the alignment between the specimen and torque meter. In this work, we implemented the in situ SEM torsion tests of individual La50Al30Ni20 metallic glass (MG) microwires successfully based on a self-developed micro robotic mechanical testing system. Unprecedented details, such as the revolving vein-pattern along the torsion direction on MG microwires fracture surface, were revealed. Our platform could provide critical insights into understanding the deformation mechanisms of other microwires under torsional loading and can even be further used for robotic micromanufacturing.
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Seo, Min-Seok, Hee-Seung Kim, Gia Toai Truong, and Kyoung-Kyu Choi. "Seismic behaviors of thin slender structural walls reinforced with amorphous metallic fibers." Engineering Structures 152 (December 2017): 102–15. http://dx.doi.org/10.1016/j.engstruct.2017.09.004.

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Xu, Wan Qiang, Lalu Robin, Kevin J. Laws, Rong Kun Zheng, and Michael Ferry. "The Redistribution and Alignment of Crystalline Flakes in a Bulk Metallic Glass Composite during Thermoplastic Forming." Materials Science Forum 702-703 (December 2011): 971–74. http://dx.doi.org/10.4028/www.scientific.net/msf.702-703.971.

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An In-situ Mg-based bulk metallic glass (BMG) composite containing 40% volume fraction of Mg-rich crystalline flakes was produced by die casting. During cooling from the melt, the flakes nucleate heterogeneously and subsequently grow with their broad faces parallel to the {0001} plane. This generated a uniform dispersion of randomly-oriented flakes within an amorphous matrix. When compressed uniaxially up to 60% reduction in the supercooled liquid (SCL) region, the flakes in this composite were substantially aligned their broad faces towards the compression plane that generated a strong //ND fibre texture.
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Christopoulos, A. C., I. Koulalis, G. J. Tsamasphyros, and G. Kanderakis. "Investigation of Strain Sensing Capabilities of Amorphous Magnetostrictive Wires Embedded in Epoxy Resin." Key Engineering Materials 495 (November 2011): 276–79. http://dx.doi.org/10.4028/www.scientific.net/kem.495.276.

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The development of fibers and adhesive systems with high durability has recently led to the creation of a new repair method of metallic structures, by the use of reinforcing patches made of composite materials. This technique is generally reported as "Composite patch repair" and provides very important advantages compared to the conventional methods of repairs. On the other hand, the technology of induction heating constitutes an innovative approach to achieve the supply of energy for the curing of resins or for the manufacturing of composite materials. In the case of resins, a ferromagnetic material must be imported into the resin, to produce the required heat. This may be achieved by importing a metallic grid in the resin. Moreover, this metallic grid, which remains inside the resin after the curing, may serve as sensor by analyzing its electrostatic properties, thus providing useful information about the structural integrity of the area (e.g. potential increase of the crack below a bonded composite repair). In this paper we present results concerning the strain sensing capabilities of amorphous magnetostrictive wires embedded in epoxy resin. The inverse magnetostrictive effect leads to a change of permeability of wires so that applied stress can change the impedance of the amorphous wires due to the skin effect with alternating current excitation. Two different types of sensing were used, contact sensing (attachment of the wire “gauge” to a sensing devise) and induction sensing (eddy current sensing probe).
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Su, Shuang, Yongjiang Huang, Jiapeng Zhang, Lunyong Zhang, Huan Wang, Zhiliang Ning, and Jianfei Sun. "Tensile Properties of Melt-Extracted and Annealed Ni/Fe-Based Amorphous Metallic Fibers." Metals 12, no. 6 (May 27, 2022): 918. http://dx.doi.org/10.3390/met12060918.

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Here, melt-extracted Ni- and Fe-based amorphous metallic fibers (AMFs) were annealed below their glass transition temperatures. The tensile behaviors and microstructures of the melt-extracted and the annealed AMF samples were studied. For melt-extracted Ni- and Fe-based samples, the difference of fracture angles can be attributed to their difference of parameter α in the unified tensile fracture criterion. The revolution in the microstructure and mechanical properties induced by annealing treatment has been interpreted in detail. Prolonging the annealing time or increasing the annealing temperature can lead to an increase in fracture stresses of both Ni- and Fe-based AMFs. It was demonstrated that the increase in the fracture stresses of annealed AMFs is caused by the free volume annihilation in annealing processing.
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Yang, Jun-Mo, Hyun-Oh Shin, and Doo-Yeol Yoo. "Benefits of using amorphous metallic fibers in concrete pavement for long-term performance." Archives of Civil and Mechanical Engineering 17, no. 4 (September 2017): 750–60. http://dx.doi.org/10.1016/j.acme.2017.02.010.

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Nayar, Sunitha K., and Ravindra Gettu. "Benefits of using amorphous metallic fibres in concrete slabs-on-grade." RILEM Technical Letters 1 (December 31, 2016): 122. http://dx.doi.org/10.21809/rilemtechlett.2016.20.

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The effective utilization of pseudo-ductile materials like Fibre Reinforced Concrete (FRC) depends on the incorporation of suitable material parameters in appropriate design approaches. A design methodology has been developed for slabs-on-grade addressing various failure patterns, and giving a performance requirement as the design output. This opens up the choice of fibres, allowing the use of combinations of fibres to suit the service requirements. In this context, the current study explores the use of hybrid combinations of conventional steel fibres (SF) and a genre of corrosion-resistant amorphous metallic fibres (AMF) that have the ability to significantly enhance the flexural strength of concrete, even at relatively low dosages. It is shown that AMF, when used in combination with SF, results in a synergistic response with respect to toughness; mixes with 15 kg/m3 of SF and 20 kg/m3 of AMF exhibit about 50% higher characteristic flexural strength and more than double the characteristic equivalent flexural strength than the mix with 15 kg/m3 of SF alone, in the concrete considered here. Consequently, when FRC with a hybrid combination of fibres (AMF+SF) was considered in design, a significant reduction in thickness of slab was possible, in comparison to FRC with only SF.
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Shaikh, Faiz Uddin Ahmed, Narwinder Singh Kahlon, and Attiq Ur Rahman Dogar. "Effect of Elevated Temperature on the Behavior of Amorphous Metallic Fibre-Reinforced Cement and Geopolymer Composites." Fibers 11, no. 4 (March 28, 2023): 31. http://dx.doi.org/10.3390/fib11040031.

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To improve the tensile, flexural, and ductility properties of geopolymer composites, amorphous metallic fibres (AMF) are used to reinforce these composites, and the behavior of these composites at elevated temperatures has been assessed in this study. Four types of composites, i.e., cement, reinforced cement, geopolymer, and reinforced geopolymer composites have been prepared. The composites have been reinforced using AMF with a fibre volume fraction of 0.75%. The composites have been assessed for change in mass loss, cracking, compressive strength, and flexural strength at four elevated temperatures of 200 °C, 400 °C, 600 °C, and 800 °C, and conclusions have been drawn concerning these composites. The results have shown that an increase in temperature has an adverse effect on these composites, and geopolymer composites exhibit higher performance than their counterpart cement composites at elevated temperatures. The mass loss and surface cracking were significantly lower in geopolymer composites, and the fibre reinforcement had a negligible effect on mass loss. Also, the residual compressive and flexural strength of reinforced geopolymer composites was significantly higher than that of the reinforced cement composites. In addition, scanning electron microscopic images also showed that even at higher temperatures, the geopolymer matrix is present on the AMF fibre, which results in higher residual strength than the cement composites in which a negligible amount of matrix is present on the fibres.
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Zhao, Shuo, Runqing Liu, and Jun Liu. "Experimental study of the durability of high-performance cementitious composites with amorphous metallic fibers." Construction and Building Materials 367 (February 2023): 130295. http://dx.doi.org/10.1016/j.conbuildmat.2023.130295.

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47

Nešpor, Bohdan, and Martin Nejedlík. "Development of Electrically Conductive Composite Sensors with the Addition of Functional Fillers." Solid State Phenomena 272 (February 2018): 34–40. http://dx.doi.org/10.4028/www.scientific.net/ssp.272.34.

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The paper presents the development results of "smart" pressure-sensitive fibre-cement compositematerials as well as thin-film coating sensors designed to detect disruptions of the base materialstructure. Basic material characteristics of fine-grained and coarse-grained cement matrices wereacquired during the research. The benefits and influence of conductive inorganic components,metallic components in the form of iron fillings and steel wires, and last but not least carbon-basednon-metallic fibrous reinforcement, have been verified. Thin-film epoxy resin coatings were enrichedwith amorphous carbon black, multi-walled carbon nanotubes (MWCNT) and natural micronizedgraphite. The article closely describes the measurement of electrical and electro-mechanical(piezoresistive) properties of conductive fibre-cement composites and thin-film organic coatings in anon-loaded state, during static loading and especially during dynamic ballistic and shock tests on thefall tower. Specific electrical characteristics and the course of change in electric conductivity wasexpressed as electrical resistivity (the real component of the impedance).The performed experiments confirmed excellent electrical conductivity of dense steel-fibrereinforced composites and graphite-doped hybrid fibre reinforced concrete. The coatings showedsignificant and permanent changes in impedance in the order of tens of ohms. The newly developedfibre composites and coating layers change the impedance during destructive and non-destructivedynamic loading tests. The impedance changed not only during failure of the matrix, but also in thecase of indirect impact. Moreover, carbon reinforced concrete with incorporated graphite showedsome piezoresistive properties. These detection materials were intended to be part of a ballistic-resistant monitoring system.
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Kanade, Pragnya, and Bharat H. Patel. "Copper nano mediated hygienic textiles with improved aesthetic properties." Research Journal of Textile and Apparel 21, no. 2 (June 5, 2017): 146–58. http://dx.doi.org/10.1108/rjta-01-2017-0004.

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Purpose The main purpose of taking up this work was to see the influence of metallic nanoparticles on various fabric properties. This paper emphasizes on mechanical, aesthetic and anti-bacterial properties of the polyester, cotton and polyester cotton-blended fabric samples. Design/methodology/approach Three fabrics, 100 per cent polyester, 100 per cent cotton and polyester cotton-blended (50:50), were procured from the market. They were subjected to mild washing treatment so that the fabrics could be impregnated with copper (Cu) nanoparticles following standard procedure. The characterization of Cu nano-loaded textiles has been done using various techniques such as scanning electron microscopy for surface morphology, X-ray fluorescence spectrometer for elemental analysis and Fourier transform infrared spectroscopy for chemical composition. However in this paper, the focus is on various fabric properties and influence of this treatment on them. Antimicrobial activity was measured as per AATCC 100 quantitative method. Findings The structural properties showed changes but not major ones. The impregnation of Cu nanoparticles is nothing but a chemical treatment, and it is not uncommon to find reduction in the mechanical properties of the specimen. Here also, the mechanical properties were studied but did not reveal any significant change. The aesthetic properties for cotton fabrics showed an improvement. Improvement in the anti-bacterial activity was observed for all the fabric samples but the improvement in cotton fabric is worth mentioning. Thus, nano treatment imparts anti-bacterial property without hampering the mechanical properties of the parent textiles. Research limitations/implications It is usual to find changes in the various properties of the materials subjected to nano treatment or treatment of any sort. Though the fabric samples were subjected to similar treatment, the quantity of nanoparticles taken up by each of them was different. The reason behind this could be the difference in the crystallinity of the fabric samples. Polyester fabric showed the highest resistance, as it was least affected by the nano treatment given. Cotton fabrics composed of cotton fibers are amorphous in nature, hence showed better take-up and hence were more affected by the said treatment. Practical implications Cotton fabrics are the most favored fabric, especially in regions with hot climatic conditions. Even though these fabrics are very sought after, they have a major drawback related to the aesthetic appeal of the fabric. These fabrics have very poor resistance to the crease formation, as well as their ability to recover from the external deformation. But the study conducted on the fabric samples has shown favorable results for the cotton fabric. A significant improvement in their aesthetic and anti-bacterial activity was found. At present, textiles with nano finishing fall in niche market due to its higher cost. But finishing with in-house Cu nanoparticles may open up hygiene textiles for consumers at affordable rates. Social implications Cotton is still the most popular natural fiber in most of the tropical and sub-tropical regions. People located in these places have a natural urge to wear fabrics made from cotton fibers. Due to the hot weather, sweating is natural. However, this tends to keep the skin in humid state resulting in various skin problems, as cotton is also prone to bacterial attack. But this work has shown positive results, meaning to say that cotton fabrics show improved resistance to the bacterial activity. Hence, its suitability for hygiene applications may soon become a reality. Originality/value It is true that a lot of work is being reported on nano materials and their application to textiles for various reasons. Recently, many reports are available related to finishing of textiles using nanoparticles. However, most of the researchers are using silver nanoparticles for the same. In this work, use of in-house Cu nanoparticles has been done to treat fabric samples, which is more economical than silver nano. Also quantity required to meet desired property with Cu nanoparticles is less than the conventional treatment. This work is a sincere attempt to prepare hygienic common textiles at economical rates using continuous application technique which offers durable efficacy against human pathogenic bacterium.
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Ajoku, Chinedu A., Anaclet Turatsinze, and Ariane Abou-Chakra. "Use of fibres in improving the mechanical properties of a multifunctional cement for structural repair purposes." MATEC Web of Conferences 364 (2022): 04002. http://dx.doi.org/10.1051/matecconf/202236404002.

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Calcium phosphate cement (CPC) is a multifunctional cement whose potential application depends on the reactants used to synthesise it. Just like many inorganic cements, the pure CPCs synthesised in all cases are very brittle and have low toughness values under loading. In this research, the CPC material is formed from the exothermic reaction between phosphoric acid and calcium silicate at controlled room temperature. Three fibre types, namely; macro polypropylene fibres, amorphous metallic fibres and recycled carbon fibres were chosen due to their corrosion resistance in acid to enhance the mechanical performance of this cement as a repair material. 1.5% by volume of each of these fibres were added to the CPC material and autogenously cured for 14 days at room temperature. Mechanical destructive and non-destructive tests were carried out on the resulting composites. The experimental results revealed that each type of fibre contributes to increase flexural strength, compressive strength, fracture energy and dynamic elastic modulus of CPC material. However, for this purpose the recycled carbon fibres have proven to be more efficient.
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Kim, Ji-Hwan, Sung-Ho Bae, and Se-Jin Choi. "Effect of Amorphous Metallic Fibers on Strength and Drying Shrinkage of Mortars with Steel Slag Aggregate." Materials 14, no. 18 (September 18, 2021): 5403. http://dx.doi.org/10.3390/ma14185403.

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Recently, with increasingly stringent environmental regulations and the depletion of natural aggregate resources, high-quality aggregates have become scarce. Therefore, significant efforts have been devoted by the construction industry to improve the quality of concrete and achieve sustainable development by utilizing industrial by-products and developing alternative aggregates. In this study, we use amorphous metallic fibers (AMFs) to enhance the performance of mortar with steel slag aggregate. Testing revealed that the 28-day compressive strength of the sample with steel slag aggregate and AMFs was in the range of 48.7–50.8 MPa, which was equivalent to or higher than that of the control sample (48.7 MPa). The AMFs had a remarkable effect on improving the tensile strength of the mortar regardless of the use of natural aggregates. With AMFs, the drying shrinkage reduction rate of the sample with 100% steel slag aggregate was relatively higher than that of the sample with 50% natural fine aggregate. Furthermore, the difference in the drying shrinkage with respect to the amount of AMFs was insignificant. The findings can contribute to sustainable development in the construction industry.

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