形状因子对绿色超声压实效率及烧结氧化锆陶瓷性能的影响

Proceedings KORUS 2000. The 4th Korea-Russia International Symposium On Science and Technology Pub Date : 2000-06-27 DOI:10.1109/KORUS.2000.866107

O. Khasanov, Jae‐Shin Lee, Y. Pokholkov, E. Dvilis, V. Sokolov, B. An

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引用次数: 2

摘要

超声波(功率为0.5)压实ZrO/sub - 2/-Y/sub - 2/O/sub - 3纳米粉体的绿色压实剂和陶瓷的性能;1;2;3 kW)进行了研究。绿坯的形状因子(高径比)分别为h/D=0.05和0.37。研究了在1650℃/spl温度下，不同h/D的生坯烧结陶瓷的相组成、晶粒结构、密度和收缩率。指出了采用最佳超声压实工艺改善高级陶瓷力学性能的可能性。

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Influence of the shape factor on efficiency of the green compact ultrasonic compacting and properties of sintered zirconia ceramics

The properties of green compacts and ceramics from ZrO/sub 2/-Y/sub 2/O/sub 3/ nanopowder compacted under ultrasonic action (power of 0.5; 1; 2; 3 kW) were studied. The shape factor of the green compacts (the ratio of height to diameter) was h/D=0.05 and 0.37. Phase constitution, grain structure, density and shrinkage, of ceramics sintered at 1650/spl deg/C from the green compacts with different h/D, were investigated. The possibility for improvement of mechanical properties of advanced ceramics by using optimum regimes of ultrasonic compaction was shown.

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Proceedings KORUS 2000. The 4th Korea-Russia International Symposium On Science and Technology

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