不同品级铝矾土均化烧结性能及微观结构的研究
发布时间：2019-01-07 10:24
【摘要】：利用TG-DSC-DTG对不同品级铝矾土进行热分析,研究不同品级铝矾土在不同温度下的均化烧结情况,利用XRD、SEM对均化矾土熟料的物相组成和微观结构进行研究。结果表明:Al2O3含量为89%(S级)、84%(I级)和74%(IIA级)的铝矾土,其最佳均化烧结温度分别为1580℃、1600℃和1650℃,各级均化矾土熟料在最佳烧结状态下的晶体结构和生长形态为:S级、I级均化矾土熟料主要为发育良好的刚玉晶粒,大部分呈长柱状,少量呈等轴状,晶粒间结合紧密,杂质均匀分布在晶界的玻璃相中;IIA级均化矾土熟料中刚玉相与莫来石相共存,晶粒发育良好,莫来石晶体为长柱状。
[Abstract]:The thermal analysis of bauxite of different grade was carried out by TG-DSC-DTG, and the homogenization sintering of bauxite at different temperature was studied. The phase composition and microstructure of bauxite clinker were studied by XRD,SEM. The results show that the optimum homogenizing sintering temperature of bauxite with Al2O3 content of 89% (S grade), 84% (I grade) and 74% (IIA grade) is 1580 鈩，
本文编号：2403549
[Abstract]:The thermal analysis of bauxite of different grade was carried out by TG-DSC-DTG, and the homogenization sintering of bauxite at different temperature was studied. The phase composition and microstructure of bauxite clinker were studied by XRD,SEM. The results show that the optimum homogenizing sintering temperature of bauxite with Al2O3 content of 89% (S grade), 84% (I grade) and 74% (IIA grade) is 1580 鈩，
本文编号：2403549
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