Ezzat S.Elshazly
,
M.El-Sayed Ali
材料科学技术（英）
The isothermal tetragonal-to-monoclinic phase transformation of 3 mol fraction Y2O3–ZrO2 ceramics containing different amounts of Al2O3 during ageing in water at 130℃ for periods of time up to 40 h was investigated to explore the effect of Al2O3 addition on this transformation. The propagation of the transformation into the specimen interiors was suppressed by the addition of Al2O3. The transformation kinetics showed a nucleation and growth mechanism on the specimen surface to be dominant in the low temperature ageing in water environment.
关键词:
Phase transformation
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