Preparation and Properties of SiO₂/Al₂O₃-SiO₂ Fiber Mat Composite Materials

Abstract:

A light weight and heat-resistant composite material was successfully fabricated by impregnation-filtration process in which Al₂O₃-SiO₂ fiber mat was used as the skeleton and silica was applied as reinforcing filler. The effects of both concentration of silica sol and sintering temperature on SiO₂/Al₂O₃-SiO₂ fiber composites were studied. The results indicated that the density of composites increased with the concentration of silica sol increasing. The heat-treatment temperature had little effect on the density of composites. As heat-treatment temperature increased, the compressive strength increased firstly and then decreased.

• Periodical: Key Engineering Materials (Volume 680)
• Pages: 129-132
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.680.129
• Online since: February 2016
• Authors: Man Man Liu, Jia Chen Liu*, Ming Chao Wang, Zi Qi Yun
• Keywords: Al₂O₃-SiO₂ Fiber Mat, Composite, Silica Sol

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