玻璃钢/复合材料Issue(1)：60-67,8.
电泳沉积时间对SiCf/SiC复合材料性能的影响
INFLUENCE OF ELECTROPHORETIC DEPOSITION TIME ON SiCf/SiC COMPOSITES PROPERTIES
摘要
Abstract
This paper pays attention to the hybrid method of Electrophoretic Deposition (EPD) and Precursor Infiltration and Pyrolysis (PIP) for fabricating the SiCf/SiC composites.Influence of deposition time on SiCf/SiC composites is analyzed.It is concluded that SiC fibers would be gradually corroded with EPD time prolonged,and the fibers' peak strength would decrease as well.While,the existence of PyC interphases in front of the SiC fibers would effectively protect the SiC fibers.Because of the electric power of EPD suspension,interfacial strength between PyC interphases and SiC fibers would drop slightly.Therefore,the peak strength of SiC fibers would increase at first then decrease with EPD time.5 min EPD and 9 cycles PIP result in a maximum bending strength of 731 MPa for SiCf/SiC composites.After that,its mechanical property first dropped then grew a little with EPD time.Thermal conductivity of SiCf/SiC composites rose first and then fell with EPD time.With 10 min EPD,thermal conductivity of SiCf/SiC composites in room temperature reaches the maximum of 4.658 W/(m·K).关键词
电泳沉积/先驱体浸渍裂解/SiCf/SiC复合材料Key words
EPD/PIP/SiCf/SiC composites引用本文复制引用
侯慧宁,周新贵,李明远..电泳沉积时间对SiCf/SiC复合材料性能的影响[J].玻璃钢/复合材料,2018,(1):60-67,8.基金项目
国家自然科学基金青年基金(51502343) （51502343）
