Preparation of calcium aluminate cement by combustion synthesis and application for corundum-based castables

被引：2

作者：

Yang, Shoulei ^{[1
]}

Xiao, Guoqing ^{[1
]}

Ding, Donghai ^{[1
]}

Ren, Yun ^{[1
]}

Lv, Lihua ^{[1
]}

Yang, Pan ^{[1
]}

机构：

[1] Xian Univ Architecture & Technol, Coll Mat & Mineral Resources, Xian, Shaanxi, Peoples R China

来源：

INTERNATIONAL JOURNAL OF APPLIED CERAMIC TECHNOLOGY | 2018年 / 15卷 / 03期

基金：

中国国家自然科学基金; 中国博士后科学基金;

关键词：

calcium aluminate; combustion synthesis; corundum-based castables; TEMPERATURE-SYNTHESIS; EVOLUTION; MICROSTRUCTURE; IMPLEMENTATION; COMPOSITES; RESISTANCE; BEHAVIOR; WHISKERS; SPINEL; SIZE;

D O I：

10.1111/ijac.12831

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：

Calcium aluminate cement was prepared by combustion synthesis with CaO2, Al, and Al2O3 as raw materials. The effects of CaO/Al2O3 (C/A) molar ratios in raw materials on the phase compositions and morphologies of calcium aluminate were investigated in detail. It was found that when the C/A reduced from 1.1 to 0.74, the content of CaO2Al(2)O(3) (CA(2)) in products increased, whereas contents of CaOAl2O3 (CA) and 12CaO7Al(2)O(3) (C(12)A(7)) decreased; when the C/A was 0.8, the phase composition of product (CS71) was equal to that of Secar71. Additionally, the crystallines of CA and CA(2) in the product were reduced when the C/A molar ratio was decreased. And then, the bulk density, apparent porosity, permanent linear change, cold crushing strength (CCS), and cold modulus of rupture (CMOR) of the corundum-based castables bonded with CS71, Secar7 were compared. The castables bonded with CS71 demonstrate obviously improved CCS, CMOR, and volume stability.

引用

页码：678 / 688

页数：11

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