Affiliation:
1. Aerospace Research Institute of Materials and Processing Technology
2. Beijing University of Aeronautics and Astronautics
3. Beihang University
Abstract
The bulk tiles of ceramic fibers reinforced aerogel were prepared from two reinforcements,
evenly dispersed ceramic fibers and sintered tiles. It has been found that ceramic fiber-reinforced
aerogels showed higher thermal conductivity than aerogel itself. Shrinkage of aerogels in chopped
fiber reinforced aerogel composites showed similar tendency as pure aerogel during gelation, but the
shrinkage was prohibited during supercritical drying. By contrary, in the case of sintered tile
reinforced aerogel, shrinkage of aerogel was completely limited in both gelation and drying processes.
Average of about 50% increase of compressive strengths of the sintered tile reinforced aerogel to
sintered tiles were obtained with an average density increase of about 36%, their thermal conductivity
depressed slightly.
Publisher
Trans Tech Publications, Ltd.
Subject
Mechanical Engineering,Mechanics of Materials,Condensed Matter Physics,General Materials Science
Cited by
3 articles.
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