Investigation on Preparation and Properties of Sintered α-β Al2O3 Refractories
Fused cast α-β Al2O3 brick is a high-class refractory used for glass melting furnace because of its excellent corrosion resistance and staining resistance to molten glass.However,low rate of finished product of fused cast α-β Al2O3 brick during manufacturing results in high cost and narrow applied field.Sintered α-β Al2O3 brick is studied in order to lower the cost and to expand the applied scope of α-β Al2O3 refractory.It indicates that sintered α-β Al2O3 brick can be prepared by reusing wasted fused cast α-β Al2O3 brick,adding corundum,aluminate cement,silica fume and dispersant.The properties of α-β Al2O3 brick fired at 1300 ℃,1500 ℃ or 1650℃ are suitable when aluminate cement content ranges from 5% to 9%.And when sintering temperature is over 1 500 ℃,the principal crystalline phases in the sintered compact are β-Al2O3 and CA6,which have high melting point and high corrosion resistance to molten glass.
Sintered α-β alumina brick Corrosion resistance to molten glass Aluminate cement
LIU Xijun WANG Jiezeng YE Yahong LI Penghai REN Xiangyang YIN Chaonan ZHAGN Genting WANG Changan
Ruitai Materials Technology Co., Ltd, Beijing 100024,Beijing Henan Ruitai Refractory Material Technology Co., Ltd, Zhengzhou 451100,Henan Department of Materials, Qinghua University, Beijing 100084,Beijing
国际会议
The 6th International Symposium on Refractories (第六届国际耐火材料会议)
郑州
英文
316-320
2012-10-18（万方平台首次上网日期，不代表论文的发表时间）