Thermochemical reaction behavior between Y2O3 and calcium-magnesium-aluminosilicate (CMAS) at elevated temperature
The thermochemical reaction behaviors between Y 2 O 3 and calcium-magnesium-aluminosilicate (CMAS) at 1250 °C∼1400 °C were investigated. A continuous-dense reaction layer mainly composed of Y-apatite phase quickly forms within 15 min, and its slow increasing thickness depends on the molten CMAS infiltration along the Y-apatite grain boundaries, the dissolution of the Y-apatite phase into the melt, the inhibiting effect on the CMAS penetration, and the reaction time and temperature. The CMAS crystallization occurs due to the change of chemical composition and the formation of other reaction products. The dense reaction layer shows good resistance to the molten CMAS infiltration.
研究领域:
材料科学
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无机非金属材料
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高温材料
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陶瓷涂层
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腐蚀与防护
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）