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Littérature scientifique sur le sujet « Ni/Al2O3 composite »

Auteur : Grafiati

Publié le 7 juin 2025

Mis à jour le 2 août 2025

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Articles de revues sur le sujet "Ni/Al2O3 composite"

Zygmuntowicz, Justyna, Katarzyna Konopka, Marek Krasnowski, et al. "Characterization of Al2O3 Matrix Composites Fabricated via the Slip Casting Method Using NiAl-Al2O3 Composite Powder." Materials 15, no. 8 (2022): 2920. http://dx.doi.org/10.3390/ma15082920.

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This work aimed to characterize Al2O3 matrix composites fabricated by the slip casting method using NiAl-Al2O3 composite powder as the initial powder. The composite powder, consisting of NiAl + 30 wt.% Al2O3, was obtained by mechanical alloying of Al2O3, Al, and Ni powders. The composite powder was added to the Al2O3 powder to prepare the final powder for the slip casting method. The stained composite samples presented high density. EDX and XRD analyses showed that the sintering process of the samples in an air atmosphere caused the formation of the NiAl2O4 spinel phase. Finally, the phase com

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Zhang, Hui, Yong Wei Song, and Zhen Lun Song. "Electrodeposited Ni/Al₂O₃ Composite Coating on NdFeB Permanent Magnets." Key Engineering Materials 373-374 (March 2008): 232–35. http://dx.doi.org/10.4028/www.scientific.net/kem.373-374.232.

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NdFeB permanent magnets are highly susceptible to corrosion in various environments. A new composite coating electrodeposited on NdFeB magnets was investigated in this paper. The Ni matrix film was firstly electrodeposited on NdFeB surface from watts nickel electrolyte, and then Ni/Al2O3 composite coating was successively electrodeposited on the Ni film. The microstructures of electrodeposited Ni coating and Ni/Al2O3 composite coating were observed by scanning electron microscopy (SEM). The corrosion behavior of Ni coating and Ni/Al2O3 composite coating in 3.5wt% NaC1 solution was studied by p

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Feng, Chao, Yi Xie та Zhong Wu. "Friction and Wear Properties of α-Al₂O₃-Coated SiC Particle Reinforced Nickel Matrix Composites Sliding against Bearing Steel". Solid State Phenomena 266 (жовтень 2017): 155–64. http://dx.doi.org/10.4028/www.scientific.net/ssp.266.155.

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In this study, attempt has been made to investigate the effect of SiC particles on the friction and wear properties of Ni/SiC composites manufactured by electrodeposition, especially for the composites with high-temperature treatment.For this purpose, α-Al2O3 was coated on the surfaces of SiC particles by sol-gel technology to inhibit interfacial reaction of SiC and nickel at high temperature. Both of the Ni/α-Al2O3-coated SiC (Ni/CSp) and Ni/uncoated SiC (Ni/UCSp) composites were treated at 600 °C to study the resulting wear behaviour. The results indicated that with heat treatment at 600 °C,

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Lu, Jian Hua, Wan Chang Sun, Ming Zhu, Ming Feng Tan, and Quan Zhou. "Effects of Content of Al₂O₃ Particles and Heat Treatment on Corrosion Resistance of Ni-P-Al₂O₃ Composite Coatings." Advanced Materials Research 105-106 (April 2010): 441–43. http://dx.doi.org/10.4028/www.scientific.net/amr.105-106.441.

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Ni-P-Al2O3 composite coatings with the uniform distribution of Al2O3 particles were prepared by adding Al2O3 particles into Ni-P plating solution and adopting optimum plating process. The morphology and microstructure of the coatings were investigated by using SEM, EDS and XRD. Being immersed in 10 vol.% H2SO4 solutions, the corrosion resistance of Ni-P-Al2O3 composite coatings was tested. The results show that when the solubility of Al2O3 particles in plating solution is 8 g/l, the corrosion resistance is best. Comparing with as-plated Ni-P-Al2O3 composite coatings, the corrosion resistance o

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Yang, Hua, Shi Yun Dong, and Bin Shi Xu. "Microstructure and Properties of Brush Electroplated Nano-SiC-Al₂O₃/Ni Composite Coating." Key Engineering Materials 373-374 (March 2008): 285–88. http://dx.doi.org/10.4028/www.scientific.net/kem.373-374.285.

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This paper investigated the effect of nano-SiC particle on microstructure and properties of brush electroplated nano-Al2O3/Ni composite coating. Three kinds of coatings, such as pure nickel coating, nano-Al2O3/Ni composite coating and nano-SiC-Al2O3/Ni composite coating, were fabricated on 1045 steel substrate. Before deposited, Zeta potential of nano-particles in the solution was examined. The results show Zeta potential of the nanoparticles in the nano-Al2O3/Ni electrolyte is negative, but that of the nanoparticles in nano-SiC-Al2O3/Ni electrolyte is positive when the pH value of electrolyte

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Kim, Hyeong-Chul, and Jae-Kil Han. "Microstructure and Mechanical Property of Hot-Pressed Al2O3-Ni-P Composites Using Ni-P-Coated Al2O3Powders." Advances in Materials Science and Engineering 2015 (2015): 1–6. http://dx.doi.org/10.1155/2015/148657.

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Al2O3-Ni-P composite powders with Ni-P contents of 10.9, 14.4, and 20.4 wt.% were synthesized via the Ni-P electroless deposition process. The as-received Al2O3-Ni-P composite powders were composed of Ni-P particles and Ni-P coating layer. Some Ni-P particles randomly adhered to the Al2O3powders, and their particle diameter ranged from 5 nm to 20 nm. The thin Ni-P layer had about 5 nm thick amorphous structure and directly bonded with Al2O3powders. Using the Ni-P-coated Al2O3powders, a dense Al2O3-Ni-P composite can be successfully obtained using the hot press process at 1,350°C for 1 hour in

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Sun, Wan Chang, Ming Feng Tan, Jian Hua Lu, Lei Zhang, and Quan Zhou. "Corrosion and Oxidation Resistance of Electroless Ni-P-Al₂O₃ Composite Coatings on Carbon Steel." Applied Mechanics and Materials 34-35 (October 2010): 831–35. http://dx.doi.org/10.4028/www.scientific.net/amm.34-35.831.

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Electroless Ni-P and Ni-P-Al2O3 composite coatings on low carbon steel (Q235) sheets were prepared by adopting optimum plating process. The cross-section morphology and structure as well as the phase transformation of the composite coatings were studied by scanning electron microscopy(SEM), X-ray diffraction(XRD). It was shown that the Al2O3 particles homogeneously dispersed in the entire Ni-P film matrix, and the structure of Ni-P-Al2O3 composite coatings as deposited was amorphous. The corrosion behaviors were evaluated by electrochemical tests. The experimental results indicated that the co

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Liu, Lu Hao, Zhi Wang, Guo Pu Shi, Yan Ma, Shu Ai Feng, and Chao Wu. "Effect of Fiber Coating on Properties of Ni-MF/Al₂O₃ Composites." Key Engineering Materials 575-576 (September 2013): 398–401. http://dx.doi.org/10.4028/www.scientific.net/kem.575-576.398.

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By adding sintering additives (CMS and nanoTiO2), Ni-MF/Al2O3 composites were prepared by pressureless sintering. In order to ameliorate the combination between mullite fiber and alumina matrix, mullite fiber surface was coated with Al2O3 coating. To improve the property of alumina ceramic composite, Ni particles were chosen as toughening phase. For the preparation of composite, the optimum process was 10% MF, 13% Ni, and sintering temperature in 1400°C. The material performance can be effectively improved.

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Feng, Qiu Yuan, Ting Ju Li, Hong Yun Yue, Fu Dong Bai, Kai Qi, and Jun Ze Jin. "Sediment Co-Deposition of Nanostructured Ni-Al₂O₃ Composite Coatings." Key Engineering Materials 373-374 (March 2008): 244–47. http://dx.doi.org/10.4028/www.scientific.net/kem.373-374.244.

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Nanostructured Ni-Al2O3 composite coatings incorporated with various contents of α-Al2O3 nano-particles were prepared on mild steel by using novel sediment co-deposition (SCD) technique. For the comparison reason, the pure Nickel coating and the Ni-Al2O3 composite coatings were fabricated by means of conventional electroplating (CEP) technique. The electroplating was carried out in Watt’s bath without any additives except for nano-α-Al2O3 suspension. The influence of the nano-particulates concentration, current density, and the mode of electroplating on the composite coatings were investigated

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Xing, Guo Hong, Zhi Wang, Jian Fei Liu, and Guo Pu Shi. "Fabrication of Ni-MF/Al₂O₃ Ceramic Composites." Advanced Materials Research 79-82 (August 2009): 751–54. http://dx.doi.org/10.4028/www.scientific.net/amr.79-82.751.

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Ni-MF/Al2O3 composite was fabricated using traditional method. The specimens covered with graphite were sintered at 1400°C, and the microstructure and mechanical properties of Ni-MF/Al2O3 composites were studied. Results showed that the flexural strength and fracture toughness of the composites were dramatically changed with the content of nickel. When the content of Ni was 15 wt% and no-coated MF was 10%, the composite obtained better mechanical properties, its flexural strength and fracture toughness were up to 734.40 MPa and 10.17 MPa•m1/2 respectively. The toughening mechanisms of the comp

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Thèses sur le sujet "Ni/Al2O3 composite"

MOTTA, MARCELO SENNA. "IN-SITU REDUCTION SYNTHESIS AND MICROSTRUCTURAL CHARACTERIZATION OF CU-AL2O3 E NI-AL2O3 NANO-COMPOSITES." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 2003. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=4062@1.

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CONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICO Os compósitos Cu-Al2O3 possuem excelente resistência a recozimentos em altas temperaturas bem como altas condutividades térmica e elétrica. Uma dispersão nanométrica uniforme de partículas cerâmicas na matriz metálica confere características únicas ao material, possibilitando a sua utilização como, por exemplo, resfriadores ativos. Por outro lado, estas propriedades são essencialmente dependentes da microestrutura do material, que por sua vez, varia de acordo com o método de preparação adotado. Os principais objetivos do

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Spirandeli, Bruno Roberto. "Influência da adição de NbC e Al2O3+TiO2 nos desempenhos de revestimentos a base de Ni-Al produzidos por aspersão térmica." Universidade de São Paulo, 2014. http://www.teses.usp.br/teses/disponiveis/18/18158/tde-12032015-151858/.

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Aspersão térmica é um processo de produção de revestimentos metálicos, poliméricos, cerâmicos ou compósitos sobre superfícies previamente preparadas que objetiva na maioria das vezes a prevenção contra o desgaste e/ou corrosão e também a recuperação dimensional de superfícies desgastadas. Ligas de Ni-Al são extensivamente empregadas na aspersão térmica para reconstrução dimensional e como camada de ligação como materiais que não se ligam adequadamente à superfície a ser revestida. A baixa dureza e resistência ao desgaste (principalmente em aplicações de reconstrução dimensional) desta liga pod

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Zhang, Yi Ming, and 張益銘. "The synthesis of nanocrystalline Ni/Al2O3 composite." Thesis, 1995. http://ndltd.ncl.edu.tw/handle/83176553047560916007.

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Chen, Rong-Zhi, and 陳榮志. "Effect of Interface on Mechanical Properties of Al2O3/Ni Composite." Thesis, 1996. http://ndltd.ncl.edu.tw/handle/72347465249897395299.

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Chenn, Yu-Hen, та 諶昱涵. "Synthesis of Nano-Sized α-Al2O3/Ni Core-Shell Composite Powders". Thesis, 2005. http://ndltd.ncl.edu.tw/handle/883f47.

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碩士 國立臺北科技大學 材料及資源工程系所 93 In this study, the coating of Ni on the fine α-Al2O3 (<200nm) surface was performed using chemical reducing process. The processing conditions such as pH value , temperature , concentration of metal salt precursor , and response time were optimized though analyzing the characteristic of coating layer. A typical procedure was as follows: NiCl2．6H2O in water solution was added to α-Al2O3 suspension . The suspension was then mechanical stirred and adjusted the pH to 11 , at temperature of 80℃ for 30 min , then carry on every physical and chemical analyses , i

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Jlang, an-zhou, and 江安洲. "The study of Al2O3-Black Ni solar spectrallyselective composite absorbers manufactured byelectroless composite coating technology." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/4e4b4m.

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碩士 國立虎尾科技大學 材料科學與綠色能源工程研究所 97 The metal-dielectric composite spectrally selective solar absorbers were widely used in solar thermal collectors due to its excellent absorption. The manufacture cost of the metal-dielectric composite spectrally selective solar absorbers is expensive and that limits its applications. In this work, the electroless composite coating technology which possesses lower cost, simple equipment and easy to operate characteristics was used to fabricate the Al2O3-black nickel composite solar selective surface on Al substrate and the Sol-gel technique was used to

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Hsu, Che-Yuan, and 許哲源. "The study of Ni-Al2O3 solar spectally selective composite absorbers manufactured by electroless composite coating technology." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/s5k465.

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碩士 國立虎尾科技大學 材料科學與綠色能源工程研究所 96 In this work, the metal-dielectric composite (Ni-Al2O3) solar spectally selective absorbers have been deposited on aluminum substrate using the electroless composite coating technology and the antireflection layers for the absorbers were fabricated by sol-gel method. The effects of the size and content of dielectric (Al2O3), the thickness of absorber, the double absorption layer and the antireflection layer on the absorbance (α) and thermal emittance (ε) of Ni-Al2O3 composite solar selective absorber were studied. The surface morphology of absorber and

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Wang, Pei-Lun, and 王培倫. "Synthesis of Carbon Nanofibers with Specific Microstructures by a Ni/Al2O3 Composite Catalyst." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/10591902911446511381.

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博士 大同大學 材料工程學系(所) 93 Carbon nanofibers (CNFs) were synthesized by a chemical vapor deposition method with a Ni/Al2O3 composite catalyst. CNFs with specific structures, including the herringbone, short internal cavities, extended internal cavities and bamboo-like structure, can be synthesized at different synthetic temperatures. The gas feed can modify the synthetic temperature. The maximum growth temperature for CNFs with a CH4/N2 feed is 873 K and with a CH4/H2 feed is 973 K. The cause of formation of CNFs with internal cavities is considered to be the quasi-liquid state of cataly

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Pei-Lun, Wang, and 王培倫. "Synthesis of Carbon Nanofibers with Specific Microstructures by a Ni/Al2O3 Composite Catalyst." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/10721643541112799327.

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博士 大同大學 材料工程研究所 93 Carbon nanofibers (CNFs) were synthesized by a chemical vapor deposition method with a Ni/Al2O3 composite catalyst. CNFs with specific structures, including the herringbone, short internal cavities, extended internal cavities and bamboo-like structure, can be synthesized at different synthetic temperatures. The gas feed can modify the synthetic temperature. The maximum growth temperature for CNFs with a CH4/N2 feed is 873 K and with a CH4/H2 feed is 973 K. The cause of formation of CNFs with internal cavities is considered to be the quasi-liquid state of catalyst

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翁嘉豪. "The study of kinetic mechanism and the electroforming application of ni/al2o3 composite coating." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/06215016395627959255.

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碩士 國立勤益技術學院 化工與材料工程系 93 The nano- Ni-Al2O3 composite coating can be used in special working situation of MEMS. However, the Al2O3 particles aggregate in the Ni-Al2O3 composite coating easily. The welled-dispersion of particles is more important to obtain a fine electrodepositing composite coating. It could enhance the amounts of Al2O3 particles in the deposited layer which reducing the concentration of electrolyte to assist the dispersion of particles. Finally, the hardness of composite coating is elevated by adding the Al2O3 nano-particles into the bath under the concentration of

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Chapitres de livres sur le sujet "Ni/Al2O3 composite"

Grechanyuk, V., M. Grechanyuk, V. Chornovol, A. Kozyrev, and Kovalchuk Yu. "Vapor-Condensed Composite Materials Ni–Al2O3, NiCr–Al2O3 with Oxide Nanophase." In Springer Proceedings in Physics. Springer Nature Switzerland, 2023. http://dx.doi.org/10.1007/978-3-031-42704-6_15.

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Kallel, Mouna, Nicole Chronopoulou, Evangelia A. Pavlatou, and Khaled Elleuch. "Electrodeposited Ni/MWCNT-Al2O3 Composite Coating: Morphology and Tribology Studies." In Lecture Notes in Mechanical Engineering. Springer Nature Switzerland, 2024. http://dx.doi.org/10.1007/978-3-031-70428-4_23.

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Harmukh, Atul Kumar, Santosh Kumar, and Sushma Bharti. "Improvement in Tribological Behaviour of Brake Pad Material with CNT-Ni-P Composite Coating and Compare with Al2O3-Ni-P Composite Coating." In Lecture Notes in Mechanical Engineering. Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-13-6469-3_15.

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Miskioglu, Ibrahim, Georges Zambelis, Fabio Gatamorta, Ozgur Aslan, and Emin Bayraktar. "Toughening Mechanism of Silicon Whiskers and Alumina Fibres (γ-Al2O3) Reinforced Ni-Al-Cu Matrix Composites Through “Sintering + Forging”." In Mechanics of Composite, Hybrid & Multi-functional Materials, Volume 5. Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-17445-2_4.

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Wang, Rongguang, Suketsuku Nakanishi, and Hiroki Sawada. "Influence of Heat Treatment on Corrosion and Wear Resistances of Mild Steel with Ni-P-Al2O3 Composite Film." In Proceedings of the 8th Pacific Rim International Congress on Advanced Materials and Processing. Springer International Publishing, 2013. http://dx.doi.org/10.1007/978-3-319-48764-9_177.

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Barmak, K., S. W. Banovic, H. M. Chan, et al. "Processing and Properties of Electrodeposited Functionally Graded Composite Coatings of Ni-Al-Al2O3." In Functionally Graded Materials 1996. Elsevier, 1997. http://dx.doi.org/10.1016/b978-044482548-3/50038-x.

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Rabin, Barry H., Richard L. Williamson, Hugh A. Bruck, Xun-Li Wang, Tom R. Watkins, and David R. Clarke. "Residual Strains and Stresses in an Al2O3-Ni Joint Bonded with a Composite Interlayer: FEM Predictions and Experimental Measurements." In Functionally Graded Materials 1996. Elsevier, 1997. http://dx.doi.org/10.1016/b978-044482548-3/50064-0.

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Nourbakhsh, S., F. L. Liang, and H. Margolin. "Fabrication of Ni3Al/Al2O3 and Ni/Al2O3 composites by pressure casting." In Processing of Ceramic and Metal Matrix Composites. Elsevier, 1989. http://dx.doi.org/10.1016/b978-0-08-037298-3.50025-6.

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Cooke, Kavian, and Tahir Khan. "Nanostructured Ni/Al2O3 Interlayer: Transient Liquid Phase Diffusion Bonding of Al6061-MMC." In Encyclopedia of Aluminum and Its Alloys. CRC Press, 2019. http://dx.doi.org/10.1201/9781351045636-140000277.

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Aluminum metal matrix composites are materials frequently used in the automotive and aerospace industries due to their high strength-to-weight ratio, formability, corrosion resistance, and long-term durability. However, despite the unique properties of these materials, the lack of a reliable joining method has restricted their full potential in engineering applications. This article explores the effect of bonding time on transient liquid phase diffusion bonding of Al6061 containing 15 vol.% alumina particles using a 5 μm electrodeposited Ni-coating containing nano-sized alumina particles as th

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Actes de conférences sur le sujet "Ni/Al2O3 composite"

Verstak, Andrew, Buqian Wang, Viatcheslav Baranovski, and Andrei Beliaev. "Composite Coatings for Elevated Temperature Erosion-Corrosion Protection in Fossil-Fueled Boilers." In CORROSION 1998. NACE International, 1998. https://doi.org/10.5006/c1998-98193.

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Abstract Fluidized bed combustors components suffer severe erosion, frequently accomplished by corrosive gases attack at elevated temperatures. The tubes damage rate depends on the boiler design, bed constituents and combustion parameters, however an accelerated metal wastage is usually found in the same specific areas of different boilers. New HVOF sprayed coatings are developed for the tubing erosion-corrosion protection, based on Cr3C2/ Ni-Cr, Cr-Ti-C/ Ni-Cr-Mo, and Al2O3/NiAl composite materials. The Combustion arc Fe-Cr-C coatings were found as an economical solution for relatively low er

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Zhang, Bowen, Guokang Zhang, Zheng Du, and Hui Fan. "Effect of current density on surface morphology, microstructure, and microhardness of Ni-Al2O3 composite coatings prepared by jet electrodeposition." In Tenth International Conference on Energy Materials and Electrical Engineering (ICEMEE 2024), edited by Yuanhao Wang and Cristian Paul Chioncel. SPIE, 2024. https://doi.org/10.1117/12.3050383.

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Li, W. Y., J. L. Li, C. Zhang, H. Liao, and C. Coddet. "Characterizations of Cold-Sprayed Nickel-Alumina Composite Coating with Relatively Large Nickel-Coated Alumina Powder." In ITSC2008, edited by B. R. Marple, M. M. Hyland, Y. C. Lau, C. J. Li, R. S. Lima, and G. Montavon. Verlag für Schweißen und verwandte Verfahren DVS-Verlag GmbH, 2008. http://dx.doi.org/10.31399/asm.cp.itsc2008p0223.

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Abstract The previous studies indicate that the fabrication of metal matrix composites (MMCs) by cold spraying is effective and promising. When light materials, such as SiC and Al2O3, were used as reforcements, it is difficult to obtain a high volume fraction of hard phase in the composite just through the simple powder mixture. Therefore, in this study, a Ni-coated Al2O3 powder, which was produced through hydrothermal hydrogen reduction method, was employed aiming at increasing the volume fraction of ceramic particles in the deposited composite coating. It was found that a dense Ni-Al2O3 comp

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Yang, G. J., S. N. Zhao, C. X. Li, and C. J. Li. "Phase Transformation of Cold-Sprayed Ni/Al-Al2O3 Composite Coatings during Post-Spraying Annealing Treatment." In ITSC 2012, edited by R. S. Lima, A. Agarwal, M. M. Hyland, et al. ASM International, 2012. http://dx.doi.org/10.31399/asm.cp.itsc2012p0323.

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Abstract NiAl-Al2O3 intermetallics based composite coatings were prepared by cold spraying of Ni/Al-Al2O3 composite powders followed by post-spraying annealing treatment. The phase transformation mechanism from Ni/Al mechanical alloy to intermetallics was explored to aim at controlling the microstructure of the composite coating. Results showed that, with the porous Ni/Al and Ni/Al-Al2O3 green compacts, self-propagating high-temperature synthesis (SHS) reaction was ignited at a temperature of 500-600°C. However, SHS reaction was not able to be ignited for the cold-sprayed dense Ni/Al alloy coa

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Wu, C., K. Zhou, M. Liu, C. M. Deng, and C. G. Deng. "Wear Properties of Ni-Based Composite Coatings Sprayed by HVAF." In ITSC2010, edited by B. R. Marple, A. Agarwal, M. M. Hyland, et al. DVS Media GmbH, 2010. http://dx.doi.org/10.31399/asm.cp.itsc2010p0331.

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Abstract In order to explore wear properties of Ni-based coating on the copper substrate, the coatings with different composition were designed. Ni-based coating, Ni-based/Al2O3 and Ni-based/Al2O3/WC coatings were sprayed by HVAF on the copper substrates. Wear properties of different composite coating were measured at different loads at room temperature. The experimental results indicate that all the coatings have high wear resistance. Adding Al2O3 in sprayed powders has little effect on the microstructures and wear properties of coating. The wear resistant is improved by the addition WC-12Co

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Yang, G. J., S. N. Zhao, C. X. Li, and C. J. Li. "Influence of Al2O3 Content on the Microstructure and Microhardness of NiAl- Al2O3 Composites with Micro-Sized Al2O3 Strengthening Particles by Plasma Activated Sintering." In ITSC 2012, edited by R. S. Lima, A. Agarwal, M. M. Hyland, et al. ASM International, 2012. http://dx.doi.org/10.31399/asm.cp.itsc2012p0633.

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Abstract Thermal spraying may be a promising approach for the deposition of NiAl-Al2O3 composite coatings. To understand the intrinsic mechanical property of NiAl-Al2O3 composite, dense NiAl-Al2O3 composites were prepared by plasma activated sintering using the ball milled Ni/Al- Al2O3 composite powders contain both micro-sized Al2O3 strengthening particles and submicron-sized Al2O3 dispersoids homogeneously distributed in the NiAl matrix phase. The angular morphology of the Al2O3 particles in composite powder was changed to spherical or near spherical morphology after plasma activated sinteri

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Huang, C. J., W. Y. Li, M. Yu, and H. Liao. "High Temperature Oxidation Behavior of Cold Sprayed Ni-Al2O3 Composite Coating." In ITSC2013, edited by R. S. Lima, A. Agarwal, M. M. Hyland, et al. ASM International, 2013. http://dx.doi.org/10.31399/asm.cp.itsc2013p0227.

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Abstract In this study, a nickel-coated Al2O3 powder, produced by hydrothermal hydrogen reduction, is cold sprayed with the aim of increasing the volume fraction of alumina particles in the nickel matrix. Spray trials were conducted to investigate the effect of oxidation temperature on the microstructure and hardness of as-sprayed as well as heat treated Ni-Al2O3 composite coatings. Results show that oxidizing has a significant effect on microstructure and hardness and that the morphologies of oxide films differ depending on the heat treatment.

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Wu, C. Q., K. S. Zhou, C. G. Deng, and C. M. Deng. "HVAF Sprayed Composite Coating with Ni-base Self-Fluxing Alloy and WC on a Copper Substrate." In ITSC2006, edited by B. R. Marple, M. M. Hyland, Y. C. Lau, R. S. Lima, and J. Voyer. ASM International, 2006. http://dx.doi.org/10.31399/asm.cp.itsc2006p0689.

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Abstract In order to improve the wear resistance and service life of the copper, the composite coating consisting of a Ni-base self-fluxing alloy (NiCrWB+50%Al2O3) and WC (WC-12%Co) alloy were sprayed on a copper substrate using High Velocity Air Fuel(HVAF). The coating could meet the operating requirements including high hardness, good wear resistance and low cost. The Ni-base composite coating was analyzed by means of optical microscopy, scanning electron microscopy (SEM), electron probe microanalysis (EPMA) and X-ray diffraction (XRD). The results indicated that the structure of coating was

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Akhtar, S. Sohail, A. F. M. Arif, M. U. Siddiqui, Kabeer Raza, L. Taiwo Kareem, and Abbas S. Hakeem. "Computational Design and Development of Alumina-Nickel Droplet Composites." In ASME 2016 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/imece2016-67071.

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Computational design for property management of composite materials offers a cost sensitive alternate approach in order to understand the mechanisms involved in the thermal and structural behavior of material under various combinations of inclusions and matrix material. The present study is concerned with analyzing the elasto-plastic and thermal behavior of Al2O3-Ni droplet composites using a mean field homogenization and effective medium approximation (EMA) using an in-house code. Our material design approach relies on a method for predicting potential optimum thermal and structural propertie

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Balint, Simion Ioan. "INFLUENCE OF HEAT TREATMENT ON THE CHARACTERISTICS OF NI-P-AL2O3 COMPOSITE LAYERS." In 15th International Multidisciplinary Scientific GeoConference SGEM2015. Stef92 Technology, 2015. http://dx.doi.org/10.5593/sgem2015/b61/s24.014.

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