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Influence of Pressure on the Crystallization in SiO2f/SiO2 Composites
- Source :
- Key Engineering Materials; April 2007, Vol. 336 Issue: 1 p1236-1238, 3p
- Publication Year :
- 2007
-
Abstract
- The influence of pressure on the crystallization behavior in SiO2f/SiO2 composites hotpressed at 1350°C was studied. The crystalline phase composition analysis on SiO2f/SiO2 composites revealed that the formation of cristobalite was promoted when the hot-pressing pressure ≤ 12 MPa, however suppressed with higher pressure applied. It can be ascribed to the nucleation mechanism change from surface nucleation to bulk nucleation. Analysis on relative density as well as fracture microstructure of SiO2f/SiO2 composites confirmed the conclusion.
Details
- Language :
- English
- ISSN :
- 10139826 and 16629795
- Volume :
- 336
- Issue :
- 1
- Database :
- Supplemental Index
- Journal :
- Key Engineering Materials
- Publication Type :
- Periodical
- Accession number :
- ejs20053153
- Full Text :
- https://doi.org/10.4028/www.scientific.net/KEM.336-338.1236