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首页> 外文会议>The National Conference on Advances in Carbon Materials Delhi, November, 1999 >Novel techniques to develop carbon-carbon and ceramic matrix composites
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Novel techniques to develop carbon-carbon and ceramic matrix composites

机译：开发碳-碳和陶瓷基复合材料的新技术

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摘要

Carbon fibers and carbon-carbon composites are prominent materials amongst carbon products developed during the twentieth century. Intensive research efforts have gone into the development of these materials, to modify the raw materials and processes especially to make these economically viable for general purpose applications. The basic and important component, the matrix precursor pitch, has been modified by thermal treatment and has been characterised by FTIR, thermal analysis, coking value, etc. The modification resulted in increase in aromaticity of the pitch and hence the increase in softening point to about 175 deg C, coke yield to 60percent. One shot high density carbon-carbon composites with high mechanical properties have been developed using this pitch as matrix precursor and general purpose carbon fibers as reinforcement.
机译：碳纤维和碳-碳复合材料是20世纪开发的碳产品中的重要材料。这些材料的开发已经进行了深入的研究，以修改原材料和工艺，尤其是使其在经济上可用于通用用途。基本且重要的成分，基质前体沥青，已通过热处理进行了改性，并已通过FTIR，热分析，焦化值等进行了表征。改性导致沥青的芳香性增加，因此软化点增加。约175摄氏度，焦炭收率达到60％。使用该沥青作为基质前驱体和通用碳纤维作为增强剂，已开发出一种具有高机械性能的单发高密度碳-碳复合材料。

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