反应烧结铁铝尖晶石添加量对镁铁铝尖晶石耐火材料性能影响  

Effect of Adding Hercynite Synthesized by Reactive Sintering on the Properties of Magnesia-hercynite Refractory

作　　者：李森[1] 封立杰 王前[1] 贾元平 陈孝良 白佳海[1] 徐凤超 刘俊成[1] 杜庆洋[1] 

机构地区：[1]山东理工大学材料科学与工程学院,淄博255049 [2]淄博市鲁中耐火材料有限公司,淄博255138

出　　处：《硅酸盐通报》2016年第9期3057-3061,共5页Bulletin of the Chinese Ceramic Society

基　　金：山东省自主创新及成果转化专项(2014ZZCX01404)

摘　　要：以反应烧结铁铝尖晶石和镁砂为原料,研究了添加1%、3%、5%、7%、9%和11%反应烧结铁铝尖晶石对制备镁铁铝尖晶石耐火材料的性能影响。利用XRD分析试样的物相组成,SEM观察试样的微观结构。结果表明：在1%~11%范围内,随着铁铝尖晶石添加量的增加,镁铁铝尖晶石耐火材料的热震稳定性和挂窑皮性能提高,但荷重软化温度降低;铁铝尖晶石加入量为5%时,镁铁铝尖晶石耐火材料有较大的体积密度、较高的常温耐压强度和较小的显气孔率。Magnesia-hercynite refractory was prepared by reaction sintering, using magnesia and hercynite as raw materials. The influences of hercynite addition by 1%, 3 % , 5 % , 7 % , 9 % and 11% on the properties of magnesia-hercynite refractory were studied. The phase composition of specimens was determined by XRD and the microstructure was observed by SEM. The results show that the thermal shock resistance and coating adhesion ability of magnesia-hercynite refractory improve and the refractoriness under load decrease with the increasing of the content of hercynite within the range from 1 % to 11 %. The magnesia-hercynite refractory has bigger bulk density, higher cold crushing strength and smaller apparent porosity when the content of hercynite is 5 %.

关 键 词：反应烧结 铁铝尖晶石 镁铁铝尖晶石耐火材料 挂窑皮性 水泥回转窑 

分 类 号：TQ175[化学工程—硅酸盐工业]