A kind of ZrO2 ceramic material for porous media burner was prepared by polymeric sponge process with starting materials of zircon, zirconia powder, microsili- ca, and ball clay, and binder of silica sol through react...A kind of ZrO2 ceramic material for porous media burner was prepared by polymeric sponge process with starting materials of zircon, zirconia powder, microsili- ca, and ball clay, and binder of silica sol through reaction-sintering. The effects of microsilica addition on cold crushing strength and zirconia/zircon adding ratio on thermal shock resistance were studied. The results show that the porous media material has proper porosity, high strength, and excellent thermal shock resistance when zirconia addition is 85% and zircon addition is 5%. The performance indexes are： porosity 82%, cold crashing strength 3.1MPa, thermal shock resistance more than 10 cycles, and good thermal shock resistance to 1 500℃ flame.展开更多
文摘A kind of ZrO2 ceramic material for porous media burner was prepared by polymeric sponge process with starting materials of zircon, zirconia powder, microsili- ca, and ball clay, and binder of silica sol through reaction-sintering. The effects of microsilica addition on cold crushing strength and zirconia/zircon adding ratio on thermal shock resistance were studied. The results show that the porous media material has proper porosity, high strength, and excellent thermal shock resistance when zirconia addition is 85% and zircon addition is 5%. The performance indexes are： porosity 82%, cold crashing strength 3.1MPa, thermal shock resistance more than 10 cycles, and good thermal shock resistance to 1 500℃ flame.
