Microstructures and strength of microporous MgO-Mg(Al, Fe)2O4 refractory aggregates

被引：46

作者：

Chen, Qianlin ^{[1
]}

Yan, Wen ^{[1
]}

Schaffoener, Stefan ^{[2
]}

Wu, Han ^{[3
]}

Han, Bingqiang ^{[1
]}

Zhang, Jinhua ^{[1
]}

Li, Yawei ^{[1
]}

机构：

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

[2] Univ Bayreuth, Chair Ceram Mat Engn, D-95447 Bayreuth, Germany

[3] Wuhan Xinxin Semicond Mfg Co Ltd, Wuhan 430070, Peoples R China

来源：

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY | 2023年 / 43卷 / 06期

基金：

中国国家自然科学基金;

关键词：

Microporous refractory aggregates; MgO-Mg(Al; In-situ decomposition synthesis method; Microstructures; Strength; COMPOSITE SPINEL; PORE EVOLUTION; CEMENT; MAGNESIA; INCINERATION; KILN;

D O I：

10.1016/j.jeurceramsoc.2023.01.023

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：

Microporous MgO-Mg(Al, Fe)2O4 refractory aggregates were prepared using magnesite, Al(OH)3 and Fe2O3 applying an in-situ decomposition synthesis method. At 1400-1600 degrees C, there was a Mg(Al, Fe)2O4 with Fe3+, which had two structures. One was a ring structure formed from Al(OH)3 pseudomorph particle as a template and a low content of Fe3+. The other was the dot and strip structures precipitated in magnesite pseudomorph particles with a high content of Fe3+. Besides, at 1550-1600 degrees C, microporous MgO-Mg(Al, Fe)2O4 refractory aggregates had an excellent compressive strength (75.8-81.5 MPa) and apparent porosity (26.8%_ 28.2%).

引用

页码：2654 / 2662

页数：9

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