Fabrication and superplasticity of Al₂O₃/3Y-TZP laminated composite

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• 作者：Kaifeng Zhang ; Guofeng Wang ; Zhenjie Wang ; Changwen Wang and Wenbo Han
• 关键词：Tape casting ; Hot pressing ; Laminated composite ; Al₂O₃ ; TZP
• 刊名：Journal of the European Ceramic Society
• 出版年：2006
• 期刊代码：53_09552219
• 类别：ms
• 出版时间：2006
• 卷：26
• 期：3
• 页码：253-257
• 文件大小：423 K

摘要

Tape casting and hot-press sintering are used to fabricate an Al₂O₃/3Y-TZP laminated composite. The as-prepared material is deep drawn at high temperature to research its superplastic formability. It is found that the microstructure of the material sintered at 1550 °C is fine and no significant residual porosity was detected from SEM observations at the interfaces between the two types of layers. The superplastic forming experiment shows that, when the strain rate is constant, temperature has a great influence on the superplasticity of the Al₂O₃/3Y-TZP laminated composite. A hat-like part with the greatest deform height is obtained at 1500 °C. The processing will be less effective at higher or lower temperature.