MICROSTRUCTURE AND PIEZOELECTRIC PROPERTIES OF PVDF FILMS

被引：6
|
作者：
Haeusler, E. [1 ]
Kaufmann, W. [1 ]
Petermann, J. [1 ]
Stein, L. [1 ]
机构：
[1] Univ Saarlandes, Saarbrucken, Germany
来源：
FERROELECTRICS | 1984年 / 60卷
关键词：
D O I：
10.1080/00150198408017508
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A new method for preparing extremely thin polyvinylidene fluoride (PVDF) films is described. The films consist of a non polar alpha-phase with a high uniaxial orientation of the molecules. Imbedded into the alpha-phase is a small volume fraction of the polar beta-phase in a ribbon-like dispersion. Sandwiching those films and stretching them by about 20% or rolling them at temperatures up to 150 degrees C induced the alpha -> beta phase transformation. The structure of the films was investigated by transmission electron microscopy. Measurements of the mechano-electric coupling coefficient were made by using a direct electric method.
引用
收藏
页码：45 / 50
页数：6
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