第2期
Effect of Ti(C, N) on Properties of Low-carbon MgO-C Bricks
作者:QIN Xianpeng, LI Yuanbing, YANG Zhenghong
作者机构:The Hubei Province Key Laboratory of Ceramics and Refractories, Wuhan University of Science and Technology
分类号:
卷号:17
期号 : 2008 年, 第2期
页码:16 - 21
内容简介

The effect of Ti(C, N) on properties of low-carbon MgO–C bricks was investigated. The phase composition and the microstructure of the matrix of low-carbon MgO–C brick containing Ti(C, N) were studied by XRD and SEM analysis together with EDS. The results showed that Ti(C, N) distributed in the matrix of low-carbon MgO–C brick uniformly after being treated at 1 600 ℃ for 3 h in coke powder bed, and Ti(C, N) and MgO formed a solid solution. After the treatment at 1 600 ℃ for 3 h in coke powder bed, the bulk density and cold crushing strength of low-carbon MgO–C brick with Ti(C, N) decreased, and the apparent porosity and linear change rate of specimens increased. The oxidation resistance of low-carbon MgO–C brick with Ti(C, N) was superior to that of low-carbon MgO–C brick with no additives, but inferior to that of low-carbon MgO–C brick with Al powder. The slag resistance of the specimen with Ti(C, N) was excellent as well.

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