Mechanical properties of cement-free bauxite based castables bonded by hydratable alumina

被引：0
|
作者：
Ding Yu [1 ]
Wang Bingjun [1 ]
Liu Kaiqi [1 ]
机构：
[1] China Iron & Steel Res Inst Grp, Dept Special Ceram & Refractories, Beijing 100081, Peoples R China
来源：
HIGH PERFORMANCE STRUCTURES AND MATERIALS ENGINEERING, PTS 1 AND 2 | 2011年 / 217-218卷
关键词：
hydratable alumina bonding; cement-free castable; mechanical properties; ultrafine silica;
D O I：
10.4028/www.scientific.net/AMR.217-218.500
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
Cement-free castables bonded by hydratable alumina with or without SiO(2) fine powder were prepared with bauxite as main raw materials. The mechanism of castables' mechanical performance, as sintering temperature increased, was investigated. The results showed that the strength of these castables decreased at relatively low temperature because of the hydrates de-watering and the transforming of crystal type of Al(2)O(3), while the strength improved at high temperature. And the addition of SiO(2) fine powder can improve the castables' strength and advance the temperature point, from which castables' strength started to raise up.
引用
收藏
页码：500 / 503
页数：4
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