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 |
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页(从-至) | 28344-28353 |
页数 | 10 |
期刊 | Ceramics International |
卷 | 49 |
期 | 17 |
DOI | |
出版状态 | 已出版 - 1 9月 2023 |