Degradation Kinetics of MgO-C Refractory at High Temperature

被引：13
作者：
Lee, Juhun [1 ]
Myung, Jaewoo [1 ]
Chung, Yongsug [1 ]
机构：
[1] Korea Polytech Univ, Dept Adv Mat Engn, 237 Sangidaehak Ro, Shiheung Si 15073, Gyeonggi Do, South Korea
来源：
METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE | 2021年 / 52卷 / 03期
关键词：
CORROSION MECHANISM; OXIDATION-KINETICS; MAGNESIUM-OXIDE; CARBON; BEHAVIOR; REDUCTION; CONTACT; AIR;
D O I：
10.1007/s11663-021-02106-9
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The degradation mechanism of a MgO-C refractory was studied at 1973 K using an induction furnace under an Ar atmosphere. Cylindrical specimens were analyzed by X-ray computed tomography according to time. The degradation proceeded from the outer surfaces towards the core. Analysis of the degradation kinetics indicated the cylindrical shrinking core model could adequately describe the degradation behavior. The chemical reaction step between CO gas and the MgO aggregate was determined to be the rate-determining step.
引用
收藏
页码：1179 / 1185
页数：7
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