Effect of TiO2 on Mechanical Properties and Microstructure of Magnesium Aluminate Spinel Refractories

被引：0
|
作者：
Wei, Juncong [1 ]
Han, Xiaocui [1 ]
Gao, Chunhui [1 ]
Huang, Jiankun [1 ]
Tu, Junbo [1 ]
机构：
[1] Hebei United Univ, Hebei Prov Key Lab Inorgan Nonmetall Mat, Tangshan 063009, Peoples R China
来源：
MATERIALS AND DESIGN, PTS 1-3 | 2011年 / 284-286卷
关键词：
Magnesium aluminate spinel; Titanium dioxide; Mechanical property; Sintering temperature;
D O I：
10.4028/www.scientific.net/AMR.284-286.638
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
MgO-Al2O3-TiO2 composite refractories were prepared by using magnesium aluminate spinel (MgAl2O4) and titanium dioxide as main starting materials and being sintered at high temperature. The influences of titanium dioxide additions on the room temperature physical properties, phase composition and microstructure were investigated. The phase composition and microstructure were tested by means of XRD and SEM. The results revealed that with increasing TiO2 content, the densification of the composites first increased sand then decreased and maximized at 4% TiO2 loading. This showed appropriate amount of TiO2 could contribute to the sintering of the composites due to the solid solution of TiO2 in magnesium aluminate spinel.
引用
收藏
页码：638 / 641
页数：4
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