Effect of Soaking Time on the Properties of Al2O3-C Refractory

Yong Liang Huang; Hong Xi Zhu; Cheng Ji Deng; Nai Peng; Wen Jie Yuan

doi:10.4028/www.scientific.net/KEM.602-603.632

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HomeKey Engineering MaterialsKey Engineering Materials Vols. 602-603Effect of Soaking Time on the Properties of...

Effect of Soaking Time on the Properties of Al₂O₃-C Refractory

Abstract:

Al₂O₃-C refractory has many advantages, high strength, good corrosion resistance and good thermal shock resistance, so Al₂O₃-C refractory is widely used in the steel-making process. In this paper, the effect of different soaking time on the properties of Al₂O₃-C refractory at 1450°Cin nitrogen atmosphere was studied. The phase composition of the sintered sample has little change when the soaking time was from 2h to 5h. Cylindrical sialon appeared as the soaking time being 3h, and its grain size increased and became uniform, about 2.5um when the soaking time being 4~5h. In the general performance, with the soaking time changing from 2h to 5h, the samples increment percentage in weight decreased gradually, and the compressive strength of the sintered was first increased, and then decreased, reaching the maximum when the soaking time is 4h. Both the apparent porosity and bulk density of the samples had little different changing.

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Periodical:

Key Engineering Materials (Volumes 602-603)

Pages:

632-635

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.602-603.632

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Online since:

March 2014

Authors:

Yong Liang Huang, Hong Xi Zhu, Cheng Ji Deng*, Nai Peng, Wen Jie Yuan

Keywords:

Al₂O₃-C Refractory, Soaking Time

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