Microstructures of Ablative Materials for Thermal Protection

Abstract

Abstract: The microstructures of two ablative materials were studied. The results show that the silica fiber
glass in No.1 ablative material remains unchanged after the simulative ablation, and proper combination of the fiber glass with different
diameters leads to increase in packing density, which not only makes the ablative material possess high mechanic strength, but also improves
its thermal insulation at high temperature. No.2 ablative material has the honeycomb structure. The honeycomb is filled with hollow glass
pellets of 50～100μm in diameter. Due to this special structure, No.2 ablative material is characterized by low density and high thermal
insulation.

Key words: ablative material, microstructure, thermal protection

CLC Number:

TB301

JIANG Wei-Hui,ZHOU Jian-Er,HU Xing-Fang,WU Guo-Ting. Microstructures of Ablative Materials for Thermal Protection[J]. Journal of Inorganic Materials.

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Microstructures of Ablative Materials for Thermal Protection

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