| 冲击加载下PZT 95/5铁电陶瓷的脉冲大电流输出特性 |
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| 引用本文： | 杜金梅,张毅,张福平,贺红亮,王海晏. 冲击加载下PZT 95/5铁电陶瓷的脉冲大电流输出特性[J]. 物理学报, 2006, 55(5): 2584-2589 |
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| 作者姓名： | 杜金梅 张毅 张福平 贺红亮 王海晏 |
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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波物理实验室，绵阳 621900 |
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| 基金项目： | 中国物理研究院科研项目 |
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| 摘 要： | 极化了的PZT 95/5铁电陶瓷在冲击波作用下发生铁电相到反铁电相的结构相变，释放出被束缚的电荷，流经外电路，形成脉冲电流.基于这一原理，针对低感、低阻负载的要求，对PZT 95/5铁电陶瓷 LRC电路响应进行了理论分析，并开展了实验研究.实验采用多组PZT 95/5铁电陶瓷并联，获得了前沿小于500ns，峰值大于5kA的大电流. 关键词：PZT 95/5铁电陶瓷冲击波爆电电源
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| 关 键 词： | PZT 95/5铁电陶瓷 冲击波 爆电电源 |
| 文章编号： | 1000-3290/2006/55（05）2584-06 |
| 收稿时间： | 2005-11-04 |
| 修稿时间： | 2005-11-042005-12-06 |
Large current out-put of PZT 95/5 ferroelectric ceramics under shock loading |
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| Du Jin-Mei,Zhang Yi,Zhang Fu-Ping,He Hong-Liang,Wang Hai-Yan. Large current out-put of PZT 95/5 ferroelectric ceramics under shock loading[J]. Acta Physica Sinica, 2006, 55(5): 2584-2589 |
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| Authors: | Du Jin-Mei Zhang Yi Zhang Fu-Ping He Hong-Liang Wang Hai-Yan |
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| Affiliation: | Laboratory for Shock Wave and Detonation Physics Research, Institute of Fluid Physics, China Academic of Engineering Physics, Mianyang 621900, China |
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| Abstract: | The poled PZT 95/5 ferroelectric ceramic is in ferroelectric (FE) phase, it can be transformed into the antiferroelectric (AFE) phase by shock compression, so the bound charge can be liberated into an external circuit to generate pulses of electrical current. Based on this FE/AFE transition theory, the electrical response of LRC load was discussed, especially for the small resistance (R) and small inductance (L) load in this paper. A set of PZT 95/5 ceramics in parallel connection was devised to generate large pulses of electrical current in two plane-wave tests. The maximum output current reaches above 5 kA, and the corresponding rise time of the front edge is under 500ns. |
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| Keywords: | PZT 95/5 ferroelectric ceramic shock wave ferroelectric power supply |
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