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

摘要：

　　In order to improve the oxidation resistance of carbon/carbon (C/C) composites,a nano-SiC (SiCn) 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 SiCn coatings deposited at different voltages were investigated.XRD and SEM analyses show that SiCn 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 SiCn 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%.

关键词： C/C composites Nano-SiC Hydrothermal electrophoretic deposition

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

作者单位: Key Laboratory of Auxiliary Chemistry and Technology for Chemical Industry, Ministry of Education,Sh Key Laboratory of Auxiliary Chemistry and Technology for Chemical Industry, Ministry of Education,Sh Shenzhen Key Laboratory of Special Functional Materials, Shenzhen University, Shenzhen Guangdong 518

会议类型: 国际会议

会议名称: The Sixth China International Conference on High-Performance Ceramics(第六届中国先进陶瓷国际研讨会(CICC-6))

会议地点: 哈尔滨

会议语种:英文

页码: 489-491

在线出版日期: 2009-08-16（万方平台首次上网日期，不代表论文的发表时间）