Corrosion behavior and mechanism of the Y2O3–Al2O3–SiO2 system during long-term corrosion in water-oxygen environment at 1350 °C

Yujie Ma, Shaobo Yang, Xinyu Meng, Sijie Kou, Juanli Deng, Shangwu Fan

科研成果: 期刊稿件文章同行评审

8 引用 (Scopus)

摘要

The effect of long-term corrosion in water-oxygen atmosphere at 1350 °C on the organization of eutectic glass of the Y2O3–Al2O3–SiO2 (YAS) system was investigated and the corrosion mechanism was analysed. As corrosion time increases, the surface crystals of glass-ceramics, especially cristobalite, is gradually consumed, resulting in a gradual increase in the roughness of the surface. Subsequently, the thermal expansion mismatch of corrosion products causes internal stresses, which result in cracks and accelerate corrosion of the glass-ceramics. It is worth mentioning that this eutectic composition showed an unknown X-phase after 100 h of corrosion, and its structure was reasonably predicted.

源语言英语
页(从-至)28344-28353
页数10
期刊Ceramics International
49
17
DOI
出版状态已出版 - 1 9月 2023

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