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Preparation of Porous Mullite Ceramics Using Fly Ash Cenosphere as a Pore-Forming Agent by Gelcasting Process.
- Source :
-
International Journal of Applied Ceramic Technology . Sep2014, Vol. 11 Issue 5, p858-863. 6p. - Publication Year :
- 2014
-
Abstract
- Porous mullite ceramics were fabricated from an industrial grade mullite powder by gelcasting process using fly ash cenospheres ( FAC) as a pore-forming agent. The influence of content of FAC and sintering temperature on the density and strength was evaluated. The microstructure showed that FAC can act as a sintering aid and a pore-forming agent. When the sintering temperature at 1200°C, porous mullite ceramics with a relatively high porosity (48.1-72.2%), low density (0.84-1.64 g/cm3), low thermal conductivity (0.16-0.22 W/m · K), and high compressive strength (6.21-14.70 MPa) have been obtained. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 1546542X
- Volume :
- 11
- Issue :
- 5
- Database :
- Academic Search Index
- Journal :
- International Journal of Applied Ceramic Technology
- Publication Type :
- Academic Journal
- Accession number :
- 97936777
- Full Text :
- https://doi.org/10.1111/ijac.12204