首页|Influence of Electrophoretic Deposition Voltage on the Phase, Microstructure and Property of a Nano-SiC Coating

Influence of Electrophoretic Deposition Voltage on the Phase, Microstructure and Property of a Nano-SiC Coating

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In order to improve the oxidation resistance of carbon/carbon (C/C) composites, a nano-SiC (SiC_n) coating for SiC pre-coated C/C was prepared by a hydrothermal electrophoretic deposition process. The phase compositions, surface and cross-section microstructures of the SiC_n coatings deposited at different voltages were investigated. XRD and SEM analyses show that SiC_n outer layer without penetrative holes and cracks can be achieved at the deposition voltage range from 120 V to 210 V. The thickness and density of the SiC_n coatings improve with the increase of deposition voltage. The multi-layer coatings deposited at 210 V can effectively protect C/C composites from oxidation in air at 1773 K for 202 h with a weight loss of 0.79%.

C/C compositesnano-SiChydrothermal electrophoretic deposition

Wang Bo、Huang Jian-Feng、Liu Miao、Cao Li-Yun、Zeng Xie-Rong

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Key Laboratory of Auxiliary Chemistry and Technology for Chemical Industry, Ministry of Education, Shaanxi University of Science and Technology, Xi'an Shaanxi 710021, P.R. China

Key Laboratory of Auxiliary Chemistry and Technology for Chemical Industry, Ministry of Education, Shaanxi University of Science and Technology, Xi'an Shaanxi 710021, P.R. China Shenzhen Key Laboratory of Special Functional Materials, Shenzhen University, Shenzhen Guangdong 518086, P.R. China

Shenzhen Key Laboratory of Special Functional Materials, Shenzhen University, Shenzhen Guangdong 518086, P.R. China

2010

10.4028/www.scientific.net/KEM.434-435.489

Key engineering materials

Key engineering materials

ISSN：1013-9826
年,卷(期)：2010.434/435
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