Modification of αAI2O3 Platelet/ZrO2 Matrix Interface by Epitaxial Growth of β‐AI2O3 on the α‐AI2O3
作者： Xue-Ning Huang , Chu Kun Kuo , Patrick S. Nicholson
DOI: 10.1111/J.1151-2916.1995.TB08410.X
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摘要: An epitaxial β-alumina crystal growth method was used to modify α-AI2O3 platelet surfaces before inclusion as a reinforcing phase in partially stabilized zirconia (3Y-TZP). The as-grown surface Na-β″-AI2O3. This converted Ca-β″-AI2O3 by ion exchange, the latter is more temperature-stable at composite sintering temperatures. conditions of formation, thermal stability, and chemical compatibility these interfacial phases were examined. platelets with film incorporated into 3Y-TZP. β″-AI2O3/ZrO2 interface found promote debonding pullout, thus enhancing platelet/crack interactions during fracture process.
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