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Influence of Cr2AlC on the thermal shock and corrosion resistance of low carbon Al2O3-C refractory

Junfeng ChenJoint International Research Laboratory of Refractories and Metallurgy, Ministry of Education, ChinaZihao WuJoint International Research Laboratory of Refractories and Metallurgy, Ministry of Education, ChinaBo LiMengjie DengJoint International Research Laboratory of Refractories and Metallurgy, Ministry of Education, ChinaWen YanJoint International Research Laboratory of Refractories and Metallurgy, Ministry of Education, ChinaYaowu WeiJoint International Research Laboratory of Refractories and Metallurgy, Ministry of Education, ChinaShaowei ZhangCollege of Engineering, Mathematics and Physical Sciences, University of Exeter, Exeter, UKYu ZhangJoint International Research Laboratory of Refractories and Metallurgy, Ministry of Education, ChinaNan LiJoint International Research Laboratory of Refractories and Metallurgy, Ministry of Education, China

2024en

ABI

Annotatsiya

Incorporation of MAX phase to fabricate low-carbon refractories has been recently proposed. Among them, Cr 2 AlC was the undoubtedly one which was regarded as the most potential candidates for applications, due to the excellent chemical stability of chromium oxide . In this work, the influence of Cr 2 AlC on the thermal shock resistance and corrosion resistance of Al 2 O 3 -Cr 2 AlC-C refractories were investigated. The results indicated that the residual strength ratio still maintained stability when flake graphite content reduced from 9 wt% to 4 wt%. While the corrosion resistance of the sample with 4 wt% graphite and 5 wt% Cr 2 AlC increased approximately 40% compared with regular Al 2 O 3 -C refractories with 9 wt% graphite. The degradation mechanisms and interactions of Al 2 O 3 -Cr 2 AlC-C refractories in contact with MnO-rich slag were studied, and the role of Cr 2 AlC was elucidated.

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Identifikatorlar

DOI: 10.1016/j.jeurceramsoc.2024.05.048

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