Study on the Oxidation Kinetics of In Situ β-Sialon Bonded Al2O3-C Refractories

Bin Xu; Hong Xi Zhu; Nai Peng; Cheng Ji Deng; Wen Jie Yuan

doi:10.4028/www.scientific.net/AMR.881-883.1021

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 881-883Study on the Oxidation Kinetics of In Situ...

Study on the Oxidation Kinetics of In Situ β-Sialon Bonded Al₂O₃-C Refractories

Abstract:

The oxidation behaviors and kinetics of in-situ β-Sialon bonded Al₂O₃-C refractories were investigated by TGA techniques via isothermal oxidation experiments at different temperatures. The results show that the oxidation process of in-situ β-Sialon bonded Al₂O₃-C refractories can be divided into three stages: oxidation reaction rate controlling stage, reaction and diffusion controlling stage, and diffusion controlling stage. The oxidation rate controlled by the reaction rate has no obvious changes as the temperature increases. The oxidation rate controlled by the reaction rate and the diffusion rate together has a trend of decline, so is the oxidation rate controlled by the diffusion rate.

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Periodical:

Advanced Materials Research (Volumes 881-883)

Pages:

1021-1025

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.881-883.1021

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Online since:

January 2014

Authors:

Bin Xu, Hong Xi Zhu, Nai Peng, Cheng Ji Deng*, Wen Jie Yuan

Keywords:

Al₂O₃-C, Oxidation Kinetics, Oxidation Rate, SiAlON

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