Fabrication of CaO-MgO-Al2O3 materials from metallurgical waste industrial residue and their potential usage in MgO-C refractories

被引：28

作者：

Fu, Lvping ^{[1
]}

Gu, Huazhi ^{[1
]}

Huang, Ao ^{[1
]}

Zhang, Meijie ^{[1
]}

Wu, Jianfang ^{[1
]}

机构：

[1] Wuhan Univ Sci & Technol, State Key Lab Refractories & Met, Wuhan 430081, Hubei, Peoples R China

来源：

CERAMICS INTERNATIONAL | 2020年 / 46卷 / 01期

基金：

中国博士后科学基金; 中国国家自然科学基金;

关键词：

Metallurgical waste industrial residue; CaO-MgO-Al2O3; materials; MgO-C refractories; Thermal shock resistance; MECHANICAL-PROPERTIES; MICROSTRUCTURE; NANOCARBON; WHISKERS;

D O I：

10.1016/j.ceramint.2019.09.057

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：

In this study, CaO-MgO-Al2O3 materials were fabricated from metallurgical industrial waste residue and industrial alumina as raw materials via solid sintering method, and their effects on the properties of low carbon MgO-C refractories were investigated. The fabricated CaO-MgO-Al2O3 materials are mainly composed of MA, CA(2) and CA(6) phases. The CA(2)-MA materials can potentially be used in low carbon MgO-C refractories. Despite a slight increase in slag corrosion and a minor reduction in the high-temperature modulus of rupture due to their low thermal expansion coefficient, the introduction of CA(2)-MA materials leads to improved volume stability, higher cold crushing strength, superior oxidation resistance, a lower thermal expansion coefficient and significantly enhanced thermal shock resistance.

引用

页码：959 / 967

页数：9

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