CORROSION-RESISTANCE AND MICROSTRUCTURE OF HIGH-ALUMINA REFRACTORIES, BASED ON THE ROTARY SLAG TEST

被引:17
作者
YANG, HY [1 ]
CHAN, CF [1 ]
机构
[1] NATL CHENG KUNG UNIV,GRAD SCH MINERAL MET & MAT SCI,TAINAN 70101,TAIWAN
关键词
alumina; chromia; corrosion; microstructure; refractories;
D O I
10.1111/j.1151-2916.1990.tb05159.x
中图分类号
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
The corrosion resistance and microstructure of four highalumina and two chromia‐containing high‐alumina refractories were evaluated. Analysis of the refractories after exposure in the rotary slag test showed that the chromia‐containing products had better slag resistance than the chromia‐free products. Three factors contributed to this conclusion, including formation of a Cr‐spinel layer at the slag/refractory interface, formation of an impermeable mullite layer just below the interface, and improved matrix bonding from chromia‐alumina solid‐solution formation. Copyright © 1990, Wiley Blackwell. All rights reserved
引用
收藏
页码:1074 / 1077
页数:4
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