PMN-8PT device structures for electrocaloric cooling applications

被引：12

作者：

Molin, Christian ^{[1
]}

Gebhardt, Sylvia ^{[1
]}

机构：

[1] Fraunhofer Inst Ceram Technol & Syst, Winterbergstr 28, D-01277 Dresden, Germany

来源：

FERROELECTRICS | 2016年 / 498卷 / 01期

关键词：

Electrocaloric effect; PMN-PT; thick film; multilayer;

D O I：

10.1080/00150193.2016.1169062

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Based on fundamental research carried out on PMN-8PT bulk ceramics, screen-printed thick films and multilayer ceramic (MLC) structures have been developed. The influence of device design on the microstructural, dielectric, ferroelectric and electrocaloric properties has been investigated in detail. MLC structures turned out to be promising candidates for implementation into electrocaloric cooling systems providing large refrigerant volume and low single layer thickness. The latter allows for the application of high electric fields under low operation voltages. An electrocaloric temperature change of T = 0.21K was measured directly, by application/withdrawal of an electric field of E = 2.1kVmm(-1).

引用

页码：111 / 119

页数：9

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