Back to Search
Start Over
A novel way to fabricate fibrous mullite ceramic using sol-gel vacuum impregnation.
- Source :
-
Ceramics International . Aug2018, Vol. 44 Issue 11, p12664-12669. 6p. - Publication Year :
- 2018
-
Abstract
- Inspired by bird's nest structure, fibrous mullite ceramic was fabricated by vacuum impregnation with mullite fibers as raw material and zirconia sol-gel as inorganic binder. The effect of impregnation times on the properties of the fibrous mullite ceramic, such as porosity, microstructure, compressive strength and room-temperature thermal conductivity were investigated. The results showed that low density (0.45–0.66 g/cm 3 ), relative high compressive strength (0.62–3.34 MPa) and low thermal conductivity (0.037–0.125 W/mk) were exhibited for the sample. The toughness of fibrous mullite ceramic was enhanced due to the micro-creaks caused by transformation of zirconia. From the experimental results, it is suggested that it was an optimal method which have the potential use in high-temperature thermal insulation materials to produce fibrous mullite ceramics. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 02728842
- Volume :
- 44
- Issue :
- 11
- Database :
- Academic Search Index
- Journal :
- Ceramics International
- Publication Type :
- Academic Journal
- Accession number :
- 129809181
- Full Text :
- https://doi.org/10.1016/j.ceramint.2018.04.066