不同加载压力下PZT-95/5铁电陶瓷放电特性研究  

Experimental Study of the Depoling Property of PZT-95/5 Ferroelectric Ceramic under Shock Wave Loading

作　　者：刘雨生[1] 刘高旻[1] 张福平[1] 贺红亮[1] 

机构地区：[1]中物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

出　　处：《压电与声光》2008年第1期58-60,共3页Piezoelectrics & Acoustooptics

摘　　要：利用轻气炮作为加载手段,对PZT-95/5铁电陶瓷进行冲击波压缩,以实现陶瓷受激相变放电。在涵盖了PZT-95/5陶瓷的相变压力点及雨贡纽弹性极限压力点的加载压力区间内,对其放电特性进行了实验研究。获得了不同加载压力下的PZT-95/5铁电陶瓷耐电击穿强度及剩余极化强度等特征参数,并分析和讨论了PZT-95/5在不同加载压力作用下的放电特性。With a light gas gun for generating the shock wave loading, the PZT-95/5 ferroelectric ceramic has been shock compressed to induce a phase transformation for electric depoling. Under the pressures ranging from the phase transition point to the Hugoniot elastic limit, the depoling property of PZT-95/5 ferroelectric ceramic has been experimentally studied. Results including the breakdown voltage and the charge release amount have been measured. The depoling characteristic and its mechanism have been discussed.

关 键 词：PZT-95/5铁电陶瓷 冲击波压缩 耐电击穿强度 剩余极化强度 

分 类 号：TM221[一般工业技术—材料科学与工程] O521[电气工程—电工理论与新技术]