Fabrication of Al_2O_3-SiC-Mullite Composites from Fly Ash

摘要

Al_2O_3-SiC-Mullite composites were synthesized successfully using fly ash and carbon as main starting materials by carbon-thermal reduction. Effects of different carbon source, mix-milling time and the sintering temperature on composition of the productions were studied. The results showed that Al_2O_3-SiC-Mullite composites have been prepared using fly ash with high alumina as starting materials and graphite as carbon sources and sintering at 1600℃for 2h.