摘要
采用先驱体浸渗热解法制备了 3DNextelTM 72 0 Mullite复合材料 ,并对基体的组分控制、复合材料致密化以及热处理温度对复合材料强度的影响进行了研究。结果表明 ,采用正硅酸已酯和异丙醇铝作为先驱体可以在相对低温 (≤ 12 0 0℃ )通过循环浸渗热解制备孔隙率低于 2 0 %的复合材料。
D Nextel TM 720/Mullite composites were fabricated by precursor infiltration pyrolysis method. Influence of the matrix component control,the dense of composite and the treating temperature on the fracture strength of composites was studied. The results indicted that the dense composite were obtained by using the mixture of TEOS(Si(OC 2H 5) 4) and aluminum s butoxide (Al(OC 3H 7) 3) as precursor through cycle infiltration at relative low temperature(≤1200℃)
出处
《航空材料学报》
EI
CAS
CSCD
2002年第2期33-36,共4页
Journal of Aeronautical Materials
基金
航空科学基金资助 (99G5 30 81)
