作者：LIU Jiangbo,WANG Zhoufu,LIU Hao,WANG Xitang,MA Yan

作者单位：The State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology

刊名：China’s Refractories

ISSN：1004-4493

出版年：2018-03-15

卷：27

期：1

起页：39-43

止页：

分类号：TQ175.1

语种：英文

关键词：

内容简介

The effect of Y2O3 addition on the sintering properties and microstructure of spinel was investigated using alumina-rich spinel as the raw material. The phase constitution and microstructure of the specimens were characterized by XRD and SEM,and the pore structure of the specimens was measured by a mercury porosimeter. The results indicate that a viscous melt forms wrapping around spinel crystals by adding a little Y2O3 powders(1 mass%),yttrium alumina garnet will crystallize around spinel crystals by adding more Y2O3 powders( ≥3 mass%); the sintering properties of the spinel are significantly improved by adding Y2O3 powders less than 3 mass%,while they will be relatively weakened by adding Y2O3 powders more than 3 mass%.