Thermal Energy Harvesting Using Bulk Lead-Free Ferroelectric Ceramics

被引：51
|
作者：
Vats, Gaurav [1 ]
Chauhan, Aditya [1 ]
Vaish, Rahul [1 ]
机构：
[1] Indian Inst Technol Mandi, Sch Engn, Mandi 175001, Himachal Prades, India
来源：
INTERNATIONAL JOURNAL OF APPLIED CERAMIC TECHNOLOGY | 2015年 / 12卷
关键词：
ELECTRICAL ENERGY; CONVERSION; HEAT; CONVERTER; OPTIMIZATION; EFFICIENCY; DEVICES; CYCLE;
D O I：
10.1111/ijac.12214
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
This article demonstrates the energy harvesting capabilities of bulk lead-free ferroelectric materials using Olsen cycle. Lead-free compositions K[(Nb0.90Ta0.10)(0.99)Mn-0.01]O-3 (KNTM) and 0.5Ba(Zr0.2Ti0.(8))O-3-0.5(Ba0.7Ca0.3)TiO3 (BZT-50BCT) have been explored for their energy harvesting capabilities. Further, we studied the variation in energy density over wide range of applied temperature and electric field. The maximum harness-able energy density for KNTM and BZT-50BCT compositions are found to be 629J/L (629kJ/m(3)) and 87J/L (87kJ/m(3)), respectively. This estimated energy density, obtained for the bulk samples, is comparable with the highest energy density reported to-date (888J/L for lanthanum-doped lead zirconate titanate (8/65/35 PLZT) thick films).
引用
收藏
页码：E49 / E54
页数：6
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