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主要问题
(1)碳/碳复合材料的力学性能:比强度(强度与密度的比值)、比模量(模量与密度的比值)和断裂韧性高。 (2)碳/碳复合材料的高温性能:耐高温3000℃以上,抗热震、耐烧蚀等。 (3)碳/碳复合材料的使用环境:空气中370℃开始氧化,高温下必须在真空或保护性气氛中使用。 (4)碳/碳复合材料的可设计性:可实现“高导热—隔热”,“高硬度——低硬度”;“导电良好——低导电”,“摩擦系数高——摩擦系数低”
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