Large-Temperature-Invariant and Electrocaloric Performance of Modified Barium Titanate for Solid-State Refrigeration

被引：3
|
作者：
Patel, Satyanarayan [1 ]
Chauhan, Aditya [1 ]
Vaish, Rahul [1 ]
机构：
[1] Indian Inst Technol Mandi, Sch Engn, Mandi 175001, Himachal Prades, India
来源：
ENERGY TECHNOLOGY | 2016年 / 4卷 / 09期
关键词：
ceramics; calorimetry; ferroelectric; solid-state refrigeration; strontium; LEAD-FREE; POLYMER NANOCOMPOSITES; RANGE; CERAMICS; FILM;
D O I：
10.1002/ente.201600103
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
Enormous advances have been made to enhance the electrocaloric responses of ferroelectric materials, and new advanced composites transcend the 50K mark. However, such progress has ignored the need for temperature-invariant performance, which is essential for continuous cooling. In this regard, we propose the use of Sr-modified bulk ceramics with the nominal composition Ba0.85Ca0.15-xSrxTi0.9Zr0.1O3 (0<x<0.15). The material with x=0.075 displayed electrocaloric cooling of (0.7 +/- 0.05)K over a wide temperature range of 60K (303-363K) at 33kVcm(-1).
引用
收藏
页码：1097 / 1105
页数：9
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