Effect of Addition of Al2O3-SiO2 Gel Powder on Strength of Al2O3-MgO Unfired Bricks

被引：2
|
作者：
Wei, Juncong [1 ]
Liu, Shuxian [1 ]
Niu, Sensen [1 ]
Ma, Weiping [2 ]
Tu, Junbo [1 ]
机构：
[1] Hebei United Univ, Hebei Prov Key Lab Inorgan Nonmetall Mat, Tangshan 063009, Hebei, Peoples R China
[2] Tangshan Guoliang Refractory co Ltd, Tangshan 063000, Peoples R China
来源：
ADVANCED ENGINEERING MATERIALS III, PTS 1-3 | 2013年 / 750-752卷
关键词：
Al2O3-SiO2 gel powder; Al2O3-MgO unfired brick; Strength;
D O I：
10.4028/www.scientific.net/AMR.750-752.546
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：
Al2O3-MgO unfired brick were prepared by using brown corundum, white corundum, fused magnesia and alpha-Al2O3 as main starting materials, Al2O3-SiO2 gel powder as a binder. The effects of Al2O3-SiO2 gel powder on the strength of Al2O3-MgO unfired bricks were investigated. The phase composition was characterized by X-ray diffraction (XRD). The results showed that with an increase of Al2O3-SiO2 gel powder content, room temperature strength first increased and then decreased, and reached an optimum value at 5.5% addition. The hot modulus of rupture continuously increased. This mainly was related to the reactivity of Al2O3-SiO2 gel powder and the formation of mullite at high temperature.
引用
收藏
页码：546 / +
页数：2
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