作者：LI Ye1,LIU Kun1,DING Dafei1,WANG Qingfeng2,FU Xiaohui1,YE Guotian1

作者单位：1. Henan Key Laboratory of High Temperature Functional Ceramics, Zhengzhou University2. Materials Engineering Department, Luoyang Institute of Science and Technology

刊名：China’s Refractories

ISSN：1004-4493

出版年：2021-09-15

卷：30

期：3

起页：33-36

止页：

分类号：TQ175.732

语种：英文

关键词：

内容简介

In order to study the effect of the curing temperature on the intermediate temperature properties of calcium aluminate cement bonded corundum castables, the prepared castables were cured at 5, 10, 25, 40 and 50 ℃, respectively, dried at 110 ℃ for 24 h and heat treated at 800 and 1 100 ℃, respectively. Then the apparent porosity, the cold modulus of rupture and the cold crushing strength were measured. The phase composition of castable matrix specimens treated under the same conditions and the influence of the curing temperature on the intermediate temperature strength of the castables were also analyzed. The results show that with the increase of the curing temperature, the hydration degree of calcium aluminate cement increases, which promotes the uniform distribution of hydration products with Al2O3 after decomposition, thus enhancing the intermediate temperature strength of castables.