| 压缩载荷下 PZT铁电陶瓷的非线性变形 |
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| 引用本文： | 董新龙,周广宇,严伟,祈振林.压缩载荷下 PZT铁电陶瓷的非线性变形[J].宁波大学学报(理工版),2005,18(1):31-34. |
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| 作者姓名： | 董新龙 周广宇 严伟 祈振林 |
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| 作者单位： | 1. 宁波大学,工学院,浙江,宁波,315211
2. 郑州机电工程研究所,河南,郑州,450015 |
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| 基金项目： | 装备部预研基金项目(编号51478020701QT1901). |
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| 摘 要： | 随现代压电器件发展，铁电陶瓷在较大外力场作用下的非线性电/位移响应受到人们广泛的关注．本文对软性PZT5和硬性PZT4铁电陶瓷材料在压缩载荷下的非线性特性开展了实验研究和分析，测试了PZT5和PZT4铁电陶瓷材料在一维压缩载荷作用下的应力-应变曲线和电位移曲线，讨论了压缩载荷作用下的900电畴偏转特性及畴变应变对非线性变形部分的贡献．
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| 关 键 词： | PZT铁电陶瓷 非线性 电畴偏转 退极化 |
| 文章编号： | 1001-5132(2005)01-0031-04 |
| 修稿时间： | 2004年11月2日 |
Nonlinear Deformation of PZT Ferroelectric Ceramics under Compressive Loading |
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| DONG Xin-long,ZHOU Guang-yu,YAN Wei,QI Zhen-lina.Nonlinear Deformation of PZT Ferroelectric Ceramics under Compressive Loading[J].Journal of Ningbo University(Natural Science and Engineering Edition),2005,18(1):31-34. |
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| Authors: | DONG Xin-long ZHOU Guang-yu YAN Wei QI Zhen-lina |
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| Institution: | DONG Xin-long 1,ZHOU Guang-yu 1,YAN Wei 2,QI Zhen-lina 1 |
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| Abstract: | The nonlinear stress-strain behavior and the nonlinear stress-electric displacement behavior for two kind of Lead Zirconate Titanate (PZT) Ceramics, i.e. hard PZT4 and soft PZT5, were experimentally investigated under uniaxial compressive loading. It is shown that for both s-e and s-D curves, between the initial linear and the final linear stage, a nonlinear stage is always observed. Such nonlinear response is analyzed on the basis of microscopic model for the domain switching. |
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| Keywords: | Lead zirconate titanate ceramics mechanical response constitutive behavior |
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