Reaction sintering of different spinel compositions in the presence of Y2O3
Reaction sintering of different spinel compositions in the presence of Y2O3
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DOI：
10.1016/j.matlet.2004.01.015
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发表时间：
2004-06
影响因子：
3
通讯作者：
R. Sarkar;H. S. Tripathi;A. Ghosh
中科院分区：
文献类型：
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作者：
R. Sarkar;H. S. Tripathi;A. Ghosh
使用烧结海水氧化镁和商业氧化铝作为起始材料，并添加高达 4 wt.% 的 Y2O3 作为添加剂，在 1550–1650 °C 的温度范围内进行尖晶石（MgO-Al2O3 摩尔比 1:1 和 2:1）的反应烧结。使用磨碎机来减小颗粒尺寸。进行膨胀研究以评估添加剂对反应和烧结的影响。烧结产品在致密化、相分析、热强度、微观结构和能量色散 X 射线分析 (EDAX) 研究方面进行了表征。发现Y 2 O 3 对这两种组合物都有益。
Reaction sintering of spinels (MgO–Al2O3molar ratio 1:1 and 2:1) was done in the temperature range of 1550–1650 °C using sintered sea water magnesia and commercial alumina as the starting materials and Y2O3as additive up to 4 wt.%. An attrition mill was used for the reduction of particle size. Dilatometric study was done to evaluate the effect of additive on reaction and sintering. Sintered products were characterized in terms of densification, phase analysis, hot strength, microstructure and energy-dispersive X-ray analysis (EDAX) studies. Y2O3was found to be beneficial for both the compositions.