宇航材料工艺2013，Vol.43Issue(2)：35-37,3.
低密度双基体烧蚀防热材料
Low Density Bi-Matrix Ablative Composites
华小玲 1缪长礼 1李翔 1潘晓行 1陈海坤1
作者信息
- 1. 航天材料及工艺研究所,先进功能复合材料技术重点实验室,北京100076
- 折叠
摘要
Abstract
Using the processing technology of impregnating silica-based needle felt with inorganic and organic resin matrix composites successively,bi-matix ablative comoposites with density less than 1.20 g/cm3 can be obtained.Residual strength,non-deformability,heat insulation performance and anti-erosion properties of this bi-matrix ablative composites are assessed through three methods,including muffle furnace baking,quartz lamp static heat insulation and arc air tunnel heating.The results show that after muffle furnace baking at 1 100℃ for 3 000 s under aerobic conditions,the matrix remains 20％ and still has sufficient strength.While quartz lamp heating for 1 200 s with 1 200℃peak temperature,the back temperature of 25 mm thick specimens is lower than 120℃.Arc air tunnel heating results show that the bi-matrix ablative composites have outstanding anti-erosion properties and the back temperature of 25 mm thick spicemens is 71℃ merely.关键词
低密度/双基体/烧蚀防热材料Key words
Low density/ Bi-matrix composities/ Ablative composities引用本文复制引用
华小玲,缪长礼,李翔,潘晓行,陈海坤..低密度双基体烧蚀防热材料[J].宇航材料工艺,2013,43(2):35-37,3.
