Preparation and properties of alumina fiber reinforced boron nitride matrix composites

doi:10.19936/j.cnki.2096-8000.20230728.018

Abstract

Abstract: The 2.5D alumina fiber reinforced boron nitride (AB) matrix composites were prepared by PIP process with continuous alumina fiber woven 2.5D fabric as reinforcement and boron nitride ceramics as matrix. The mechanical and dielectric properties of AB composites at different sintering temperatures were studied. The fracture morphology and ablation morphology of the composites were analyzed. The results show that AB-1200 composite has excellent mechanical properties, dielectric properties and good ablation resistance. The mechanical properties of AB-1200 composite at 1 000 ℃ are twice that of 2.5D quartz fiber reinforced boron nitride composites under the same conditions. The AB composites can be used as high temperature ablation transparent materials.

Key words: alumina fiber, boron nitride, composite, preparation, performance

CLC Number:

TB332

GAO Longfei, CHAI Xiaoxiao, LI Song, PENG Zhe. Preparation and properties of alumina fiber reinforced boron nitride matrix composites[J]. COMPOSITES SCIENCE AND ENGINEERING, 2023, 0(7): 125-128.

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