Effect of submicron spinel powders on the microstructure evolution and properties of alumina-based refractory castables

被引：9
|
作者：
Chen, Pingan [1 ]
Wang, Yulong [1 ]
Li, Xiangcheng [1 ]
Zhu, Boquan [1 ]
机构：
[1] Wuhan Univ Sci & Technol, State Key Lab Refractories & Met, Wuhan, Peoples R China
来源：
INTERNATIONAL JOURNAL OF APPLIED CERAMIC TECHNOLOGY | 2017年 / 14卷 / 04期
基金：
中国国家自然科学基金;
关键词：
corrosion; corrosion resistance; mechanical properties; microstructure; shock; shock resistance; MECHANICAL-PROPERTIES; CALCIUM HEXALUMINATE; CEMENT; COMPOSITES; RESISTANCE; AL2O3-MGO; CORROSION; STRENGTH; MGAL2O4;
D O I：
10.1111/ijac.12701
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 physical properties, including flow value, apparent porosity, and mechanical strength, increased significantly with submicron spinel contents in this study. The excellent physical properties can be attributed to the close-packed microstructure and high bonding strength between spinel and aggregates/matrix. Additionally, the submicron spinel powders promoted the formation of tabular CA(6) grains that generated a cross-linked structure and enhanced the mechanical properties. The microstructures of corroded castables suggested that submicron spinel powders contributed to the formation of a continuous and thick spinel layer at the slag-refractory interface and subsequently improved the slag resistance of the castables.
引用
收藏
页码：748 / 758
页数：11
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