Fabrication and Characterization of Mullite Whisker-Reinforced Porous Refractory
The Al2O3-mullite system porous refractories were fabricated, and then pretreated by sol-gel. The samples were sintered at 1200°C for 3 hours. The microstructures and phases of the samples were analyzed by SEM and XRD respectively. The physical properties of the samples were measured according to National Standard of Refractory. Mullite-whiskers were formed in the pores of the samples. The pretreated samples were more permeable, and were greatly strengthened.
Wei Pan and Jianghong Gong
M. J. Zhang et al., "Fabrication and Characterization of Mullite Whisker-Reinforced Porous Refractory", Key Engineering Materials, Vols. 336-338, pp. 1488-1490, 2007