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PIP法制备3D NextelTM 720/Mullite复合材料
Fabrication of 3D NextelTM 720/Mullite at low temperature
【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。
【Abstract】 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℃)
【关键词】 3DNextelTM720Mullite;
先驱体热解浸渗热解;
致密化;
【Key words】 D Nextel TM 720/Mullite; precursor infiltration and pyrolysis; densification of composites;
【Key words】 D Nextel TM 720/Mullite; precursor infiltration and pyrolysis; densification of composites;
【基金】 航空科学基金资助 (99G5 30 81)
- 【文献出处】 航空材料学报 ,Journal of Aeronautical Materials , 编辑部邮箱 ,2002年02期
- 【分类号】TB332
- 【被引频次】9
- 【下载频次】111