轻质碳-酚醛防热材料缺陷类型及影响分析

Defect types in lightweight carbon-phenlic thermal protection materials and their influences

摘要: 文章研究了一种新型的烧蚀防热材料——纤维增强纳米多孔轻质耐烧蚀材料的缺陷类型及形成机理。通过对材料的成型工艺、力热性能以及微观结构形貌状态的研究，确定了材料成型过程中可能形成的缺陷类型及其对产品力热性能的影响，并给出了材料的检测方法及合格判据。所得结果可为其他大尺寸整体成型的纳米增强防热材料产品提供检测依据。

Abstract: In this paper, a new type of ablative materials, the fiber-reinforced nanoporous light ablative materials, is investigated, focusing on the defect types and their forming mechanisms. Based on the study of the forming process of the material, the mechanical and thermal properties of materials, as well as the morphology of the microstructures, the possible defect types and their influences on the mechanical and thermal properties of products are presented. Then the related testing methods and qualified control criteria are given. The results can be used to provide a basis for the testing of other large-size nano-reinforced thermal resistant materials.