【作者】 邹继兆； 曾燮榕； 熊信柏； 唐汉玲； 李龙； 刘强； 李志强；

【Author】 Zou Jizhao~1,Zeng Xierong~(2,3),Xiong Xinbo~(2,3), Tang Hanling~1,Li Long~1,Liu Qiang~(2,3),Li Zhiqiang~(2,3) (1 School of Materials Science and Engineering,Northwestern Polytechnical University,Xi’an 710072; 2 Department of Materials Science,Shenzhen University,Shenzhen 518060; 3 Shenzhen Key Laboratory of Special Functional Materials,Shenzhen University,Shenzhen 518060)

【机构】 西北工业大学材料学院； 深圳大学理学院材料系； 深圳市特种功能材料重点实验室；

【摘要】 提出了一种新的C/C复合材料沉积致密化技术——微波热解沉积致密化工艺,即采用微波快速加热预制体,自发产生一定逆向温度梯度,使预制体从中心至表面逐步致密化。经90h的热解沉积,成功制备出平均密度为1.70g/cm~3的C/C复合材料。更多还原

【Abstract】 Based on the traditional CVI process and the principium of microwave heating volumetrically, A novel process of microwave pyrolysis deposition technology was put forward.Preform of carbon fiber was heated and temperature gradient was resulted in the process,Preform was densified from center to surface.Carbon/carbon composites with the bulk density 1.70 g/cm~3 were prepared at a temperature of 1 150℃,a methane partial pressure of 10 kPa and nitrogen as diluted gas in the primary process experiment.更多还原