| PZT 95/5铁电陶瓷的冲击压缩Hugoniot特性研究 |
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| 引用本文： | 刘高旻,杜金梅,刘雨生,谭华,贺红亮.PZT 95/5铁电陶瓷的冲击压缩Hugoniot特性研究[J].高压物理学报,2008,22(1):30-34. |
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| 作者姓名： | 刘高旻 杜金梅 刘雨生 谭华 贺红亮 |
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| 作者单位： | 中国工程物理研究院流体物理研究所冲击波物理与爆轰物理实验室,四川绵阳,621900 |
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| 摘 要： | 采用一级气体炮加载装置，利用加窗VISAR技术，对极化和未极化两种状态的PZT 95/5铁电陶瓷进行了逆向冲击实验，在0.52~3.8 GPa冲击压力范围内，得到了PZT 95/5铁电陶瓷两种状态的σ-u关系。对比文献已有实验数据显示，PZT 95/5铁电陶瓷的Hugoniot曲线与初始密度值密切相关，高密度的PZT 95/5铁电陶瓷在0~3.0 GPa压力范围内的σ-u关系接近线弹性，较低压力下不同极化状态的Hugoniot数据表明，PZT 95/5铁电陶瓷发生了冲击相变。
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| 关 键 词： | PZT 95/5 逆向冲击 VISAR 冲击压缩 |
| 文章编号： | 1000-5773(2008)01-0030-05 |
| 收稿时间： | 2007-03-05; |
| 修稿时间： | 2007年3月5日 |
Shock Wave Compression of PZT 95/5 Ferroelectric Ceramic |
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| LIU Gao-Min,DU Jin-Mei,LIU Yu-Sheng,TAN Hua,HE Hong-Liang.Shock Wave Compression of PZT 95/5 Ferroelectric Ceramic[J].Chinese Journal of High Pressure Physics,2008,22(1):30-34. |
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| Authors: | LIU Gao-Min DU Jin-Mei LIU Yu-Sheng TAN Hua HE Hong-Liang |
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| Institution: | Laboratory for Shock Wave and Detonation Physics Research, Institute of Fluid Physics, CAEP, Mianyang 621900, China |
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| Abstract: | Reverse-impact experiments were conducted on a gas-gun facility to determine the poled and unpoled PZT 95/5 ceramic Hugoniot states. Instrumented VISAR recorded the u-t profile at the interface between the buffer and window. Comparisons between the obtained results and reference data indicated that Hugoniot curves for PZT 95/5 ceramic are quite sensitive to the differences in initial density. Hugoniot curve of higher density PZT 95/5 ceramic shows that the σ-u curve is in linearity below 3.0 GPa. The Hugoniot curves for the unpoled PZT 95/5 ceramic and poled PZT 95/5 ceramic have also been obtained. In addition, the phase transition of FR/AO has been identified over the stress range of interest. |
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| Keywords: | PZT 95/5 reverse-impact VISAR shock compression |
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