并关于O—3型铁电复合材料的热极化机构

无机材料学报

并关于O—3型铁电复合材料的热极化机构

黄学雄; 刘红日; 徐扬子; 李景德⁺

湖北师范学院物理系; 黄石 435002; ⁺中山大学物理系; 广州510275

收稿日期:1997-10-23 修回日期:1900-01-01 出版日期:1998-10-20 网络出版日期:1998-10-20

Thermal Polarization Mechanisms of O-3 Type Ferroelectric Composites

HUANG Xue-Xiong; LIU Hong-Ri; XU Yang-Zi; LI Jing-De⁺

Dept. of physics; Hubei Normal University Huangshi 435002 China; ⁺Dept. of physics; Zhongshan University Guangzhou 510275 China

Received:1997-10-23 Revised:1900-01-01 Published:1998-10-20 Online:1998-10-20

摘要/Abstract

摘要： 制备了以PVDF为母体的TGS、BaTiO₃、LiNbO₃及PZT的O—3型复合材料．研究了这些材料的长时间极化弛豫，发现存在三种带有不同弛豫时间的驰豫机构，这些机构分别由晶粒、母体及晶粒边界产生，晶粒边界产生的极化较稳定．

关键词: 铁电复合材料, 极化驰豫

Abstract: The O-3 type composites of TGS, BaTiO₃, PZT and LiNbO₃ based on PVDF were prepared.The long term polarization relaxation in these composites was studied. It indicates that there arethree mechanisms with different relaxation time. These mechanisms result from crystalline grainsof the crystal or ceramics, matrix and grain boundaries. A stable polarization results from thegrain boundaries.

Key words: ferroelectric composites, polarization relaxation

中图分类号:

TM22

黄学雄,刘红日,徐扬子,李景德. 并关于O—3型铁电复合材料的热极化机构[J]. 无机材料学报.

HUANG Xue-Xiong,LIU Hong-Ri,XU Yang-Zi,LI Jing-De. Thermal Polarization Mechanisms of O-3 Type Ferroelectric Composites[J]. Journal of Inorganic Materials.