Ferroelectrets: Soft electroactive foams for transducers

被引：463

作者：

Bauer, S ^{[1
]}

Gerhard-Multhaupt, R

Sessler, GM

机构：

[1] Johannes Kepler Univ, A-4040 Linz, Austria

[2] Univ Potsdam, Potsdam, Germany

[3] Tech Univ Darmstadt, D-64287 Darmstadt, Germany

来源：

PHYSICS TODAY | 2004年 / 57卷 / 02期

基金：

奥地利科学基金会;

关键词：

D O I：

10.1063/1.1688068

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A class of soft electro-mechanical transducer materials that can be used in sensors and actuators is discussed. The behavior of ferroelectrets resembles that of ferroelectrics because the overall properties stem from the huge quasi dipoles that comprise the oppositely charged layers separated by the voids. Piezoelectricity can be described by various coefficients that relate mechanical and electric quantities. It is concluded that internally charged cellular polymer films will improve the quality of life by delivering high-quality audio and practically noise-free environments, enhanced security, vital medical information and more.

引用

页码：37 / 43

页数：7

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