| Phase Transformations in ZrO_2 after Shock Loading |
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| 引用本文： | Sergey N.Kulkov,Alexander G.Melnikov. Phase Transformations in ZrO_2 after Shock Loading[J]. 材料科学技术学报, 1993, 9(1): 32-36 |
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| 作者姓名： | Sergey N.Kulkov Alexander G.Melnikov |
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| 作者单位： | Institute of Strength Physics and Materials Science.，Institute of Strength Physics and Materials Science. |
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| 摘 要： | The effects of shock loading on the morphology,grain growth during heating and phase transforma-tion of ZrO_2 have been investigated.It is shown that shock loading may be efficiently used to modifysubmicron ceramic powders with nanocrystalline structure.After shock loading,the critical diameterof ZrO_2 particles transformed from tetragonal to monoclinic decreased due to stored strain energy.Annealing of powders resulted in reversible transformation to the tetragonal without considerablegrain growth up to 1200℃.
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| 收稿时间： | 1993-01-28 |
Phase Transformations in ZrO_2 after Shock Loading |
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| Sergey N.Kulkov Alexander G.Melnikov Institute of Strength Physics and Materials Science,The Russian Academy.of Science,Siberian Branch,Tomsk,,RussiaYanchun ZHOU Shengqi CHEN Zhe QU Institute of Metal Research,Academia Sinica,Shenyang,,China. Phase Transformations in ZrO_2 after Shock Loading[J]. Journal of Materials Science & Technology, 1993, 9(1): 32-36 |
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| Authors: | Sergey N.Kulkov Alexander G.Melnikov Institute of Strength Physics Materials Science The Russian Academy.of Science Siberian Branch Tomsk RussiaYanchun ZHOU Shengqi CHEN Zhe QU Institute of Metal Research Academia Sinica Shenyang China |
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| Abstract: | The effects of shock loading on the morphology,grain growth during heating and phase transforma- tion of ZrO_2 have been investigated.It is shown that shock loading may be efficiently used to modify submicron ceramic powders with nanocrystalline structure.After shock loading,the critical diameter of ZrO_2 particles transformed from tetragonal to monoclinic decreased due to stored strain energy. Annealing of powders resulted in reversible transformation to the tetragonal without considerable grain growth up to 1200℃. |
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| Keywords: | submicron ceramics nanocrystalline shock loading phase transformation |
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