防热复合材料的烧蚀机理与模型研究

烧蚀材料在高温环境中因物理、化学和力学因素造成质量损失，影响其性能。建立相应的热化学和热力学烧蚀模型，分析其传热特性和力学性能的演化规律，建立材料的热毁损判据，是复合材料防热结构设计所面临的重要问题。本文综述了近年来文献中对炭基复合材料烧蚀机理的研究，并对几种烧蚀模型进行了评价。

Study on Ablation Mechanism and Models of Heatshield Composites

The mass loss of ablative material caused by physical,chemical and mechanical factors under high temperature affects properties of the material. It is important for the thermal protective structure design to develop models for thermophsical, thermo chemical and theomechanical transfer in ablating processes and build corresponding criteria for thermal damage. This paper reviews the studies on ablation mechanism of carbon aceous composites and evaluates several ablative models.