摘要
传统的陶瓷基或者树脂基蚀防热材料无法充分发挥材料的烧蚀吸热优势,且热导率和密度偏大、烧蚀维形性较差,影响飞行器的机动性。另外,在有氧环境中传统的树脂基烧蚀防热材料会存在严重的有氧烧蚀。而陶瓷瓦类非烧蚀材料,脆性大,抗损伤能力差,制备和维护成本高,很难适应新一代飞行器大面积防热。所以需要发展较低密度、长时有氧环境近零烧蚀、长效防隔热一体化的陶瓷气凝胶柔性材料,满足未来的飞行器整体热防护材料的需求。本综述总结了气凝胶和陶瓷纤维材料在航空航天领域的研究进展,以期为相关研究提供参考。
Traditional ceramic based or resin based corrosion and heat resistant materials cannot fully utilize the advantages of material ablation and heat absorption,and their thermal conductivity and density are relatively high,resulting in poor ablation deformation,which affects the maneuverability of aircraft.In addition,traditional resin based ablative heat-resistant materials may experience severe aerobic erosion in aerobic environments.Ceramic tile based non ablative materials have high brittleness,poor damage resistance,high preparation and maintenance costs,and are difficult to adapt to the large-area heat protection of the new generation of aircraft.Therefore,it is necessary to develop ceramic aerogel flexible materials with low density,near zero ablation in long-term aerobic environment,and integration of long-term thermal protection and insulation to meet the needs of future aircraft overall thermal protection materials.This review summarizes the research progress of aerogels and ceramic fiber materials in the aerospace field,in order to provide reference for related research.
作者
王锋
赵坚
张琪凯
WANG Feng;ZHAO Jian;ZHANG Qi-kai(Beijing Electronic Engineering general Research Institute,Beijing 100854,China;Beijing Xinfeng Machinery Factory,Beijing 100854,China)
出处
《聚酯工业》
CAS
2024年第5期70-73,共4页
Polyester Industry
关键词
陶瓷
柔性材料
气凝胶
隔热材料
Ceramics
Flexible materials
Aerogel
Thermal insulation material
