Surface grain size and texture after annealing ground zirconia

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• 作者：J.J. Roa^a ; ^b ; ^{joan.josep.roa@upc.edu" class="auth_mail" title="E-mail the corresponding author} ; M. Turon-Vinas^a ; ^b ; M. Anglada^a ; ^b
• 关键词：Ceramics ; Grinding process ; Phase transformation ; Microstructure ; Transmission electron microscopy
• 刊名：Journal of the European Ceramic Society
• 出版年：2016
• 出版时间：May 2016
• 年：2016
• 卷：36
• 期：6
• 页码：1519-1525
• 全文大小：2060 K

文摘

The surface microstructure induced after grinding and annealing 3 mol% Y₂O₃ stabilized tetragonal zirconia was investigated in a range of annealing temperatures between 1200 and 1600 °C. For annealing temperatures close to 1200 °C, a surface nano-grain size layer was formed, while annealing at 1600 °C induced a very high fraction of surface grains of size and yttrium content higher than the bulk. The use of TEM-EBSD observation along the surface of the specimen ground and annealed at 1200 °C also revealed the existence of a (0 1 0) preferential orientation.