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

发布时间：2018-01-27 05:37

本文关键词： 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　出处：《硅酸盐通报》2016年09期 　论文类型：期刊论文

【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。
[Abstract]:In this paper, reaction sintering spinel and magnesia were used as raw materials to study the addition of 1 / 3 / 5%. The effect of 9% and 11% reaction-sintered Fe-Al spinel on the properties of magnesia-ferrite spinel refractories was studied. The phase composition of the samples was analyzed by XRD. The microstructure of the samples was observed by SEM. The results showed that the thermal shock stability of magnesia-ferric spinel refractories and the properties of kiln skins were improved with the increase of the amount of Fe-Al spinel in the range of 1% or 11%. But the softening temperature of load was decreased. When the amount of Fe-Al spinel is 5, the magnesia-iron-aluminum spinel refractories have higher volume density, higher compressive strength at room temperature and lower apparent porosity.
【作者单位】：山东理工大学材料科学与工程学院;淄博市鲁中耐火材料有限公司;
【基金】：山东省自主创新及成果转化专项(2014ZZCX01404)
【分类号】：TQ175.713.3
【正文快照】： 1引言在20世纪六、七十年代,镁铬砖以良好的抗侵蚀和挂窑皮性被广泛应用于水泥回转窑烧成带[1],但其生产和使用过程中产生的大量六价铬对环境造成长期的污染[2]。为解决镁铬砖在使用后所产生的环境污染,实现耐火材料无铬化成为必然趋势,研究人员进行了大量的探索研究[3-5]。从

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