耐高温SiC陶瓷纤维是CMCs的主要增强体.SiC纤维必须有适宜的物理、化学、机械性能,包括刚度(杨氏模量)、强度、抗蠕变性、耐氧化性,这些性能是制约CMCs工业应用的重要因素.本文总结了SiC陶瓷纤维符种力学性能状况,包括强度、模量与测试温度和室温的关系以及与时效的关系,蠕变行为及热处理、氧化、时效对其影响,断裂行为及热处理和氧化的影响.最后,对SiC陶瓷纤维力学性能发展方向提出了建议.
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