PTP191.添加轻烧氧化镁对镁铝尖晶石轻质耐火材料烧结性能的影响.pdf

第 3 卷第 2 期 材 　料 　与 　冶 　金 　学 　报 Vol3 No2 　 2004 年 6 月 Journal of Materials and Metallurgy June 2004 添加轻烧氧化镁对镁铝尖晶石轻质耐火 材料烧结性能的影响 孙丽枫 , 于景坤 (东北大学 　材料与冶金学院 , 辽宁 沈阳 110004) 摘 　要 : 以工业氧化铝和重烧氧化镁为原料, 通过添加轻烧氧化镁微粉的方法 , 合成了镁铝尖晶石 轻质耐火材料 , 考察了添加轻烧氧化镁微粉对一步煅烧法制备的镁铝尖晶石轻质耐火材料烧结性能 的影响. 研究结果表明 , 添加轻烧氧化镁微粉对镁铝尖晶石的烧结具有明显的促进作用 , 烧结温度 越高越有利于镁铝尖晶石的合成. 关键词 : 轻烧氧化镁微粉 ; 烧结 ; 耐压强度 ; 线膨胀率 ; 镁铝尖晶石轻质耐火材料 ( ) 中图分类号: TF06516 　　文献标识码 : A 　　文章编号 : 2004 Effect of lightburend magnesia addition on the sinterability of lightweight magnesitealumina spinel refractories SUN Lifeng , YU Jingkun ( School of Materials and Metallurgy , Northeastern University , Shenyang 110004 , China) Abstract : Industrial alumina and the deadburned magnesia powder were used as the raw materials in the synthesis of lightweight magnesitealumina spinel refractories and the effect of lightburned magnesia powder addition on the sinterability of magnesitealumina spinel refrectories was studied by way of one step sintering. The research results showed that the sinterability of magnesitealumina spinel could be improved by the addition of lightburned magnesia powder , and high temperature is favorable to the synthesis of the magnesitealumina spinel. Key words : lightburned magnesia powder ; sintering ; crushing strength ; linear expansion ; lightweight magnesitealumina spi