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材料工程  2005 

先驱体法聚硅氧烷制备SiCf/Si-O-C复合材料的性能研究

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Keywords: Si-O-C,聚硅氧烷,先驱体转化,陶瓷基复合材料,吸波性能

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Abstract:

以聚硅氧烷为先驱体,采用先驱体转化法制备SiCf/Si-O-C复合材料。研究了吸收剂含量不同对复合材料的弯曲强度、密度、热膨胀系数的影响,同时测试了材料对雷达波的反射率,结果表明低频带区有良好的吸波性能。对材料微观结构进行了分析讨论,发现界面结构与致密度是SiCf/Si-O-C复合材料具有高性能的主要原因。

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