Online-Joining of C/SiC-C/SiC via Precursor Infiltration and Pyrolysis Process

摘要：

　　A novel,online-joining of C/SiC-C/SiC method,precursor infiltration and pyrolysis,was used to obtain high temperature stable joining SiC composition,while joining process was highly consistent with C/SiC preparation process.The compositions of joining ingredients and process parameters were investigated to determine the maximum joining strength of C/SiC-C/SiC at room and high temperatures.The optimum weight ratio of (polycarbosilane/divinyl benzene)/SiC powder is 3/1,and ramping rate of pyrolysis is 2℃/min,and cycles of infiltration and pyrolysis is 6.The flexural strengths of joining components remained stable up to 1200℃ (50.8MPa),but decreased to 30.5MPa at 1500℃,while the tensile strengths remained rather stable (20.5MPa) up to 1500℃,and decreased to 8.4MPa at 1800℃.

关键词： Online-joining Joining strength Precursor infiltration and pyrolysis

作者: Yangwei Lu Yudi Zhang Haifeng Hu Changrui Zhang

作者单位: CFC Lab,College of Aerospace and Materials Engineering,National University of Defense Technology,Changsha 410073,P.R.China

会议类型: 国际会议

会议名称: The Fifth China International Conference on High-Performance Ceramics (第五届先进陶瓷国际研讨会(CICC-5))

会议地点: 长沙

会议语种:英文

页码: 1044-1046

在线出版日期: 2007-05-10（万方平台首次上网日期，不代表论文的发表时间）