作者：LIU Zhenglong,DENG Chengji,YU Chao,DING Jun,ZHU Hongxi

作者单位：The State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology

刊名：China’s Refractories

ISSN：1004-4493

出版年：2022-12-15

卷：31

期：4

起页：39-44

止页：

分类号：TQ175.732

语种：英文

关键词：

内容简介

Al2O3-SiC-C castables were prepared using C@SiC composite powder modified by molten salts to replace ball pitch gradually. The effects of the C@SiC composite powder addition(0, 1%, 1.5%, and 2%, by mass) on the water requirement,the flow value, the physical properties, the thermal shock resistance, the oxidation resistance, and the corrosion resistance of castables were studied. The results show that with the C@SiC addition increasing, the amount of water added to the castable increases, but the apparent porosity of the samples after heat treatment first increases and then decreases, and the cold modulus of rupture increases significantly. After completely replacing the ball pitch, the cold modulus of rupture of the sample increases by 51.2%, and the residual strength ratio increases by 28.7%. In addition, the sample with 2% C@SiC has the best oxidation resistance, and the sample with 1.5% C@SiC composite powder has the smallest corrosion depth.