Large electrocaloric effect obtained in Ba(Sn x Ti1−x)O 3 lead-free ceramics using direct and indirect measurements

The electrocaloric effect (ECE) in lead-free BaSn x Ti[Formula: see text]O 3 (BSnT, [Formula: see text], 0.10 and 0.15) ceramics were investigated using a direct ECE measurement. Results indicate that the maximum ECE occurs near the Curie temperature and it slightly shifts towards high temperatures....

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Bibliographic Details
Published in:Journal of advanced dielectrics 2018-10, Vol.8 (5), p.1850038
Main Authors: Li, Jiang, Li, Dan-Dan, Lu, Biao, Yao, Ying-Bang, Tao, Tao, Liang, Bo, Lu, Wen-Hui, Luo, Ge-Li, Lu, Sheng-Guo
Format: Article
Language:English
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Summary:The electrocaloric effect (ECE) in lead-free BaSn x Ti[Formula: see text]O 3 (BSnT, [Formula: see text], 0.10 and 0.15) ceramics were investigated using a direct ECE measurement. Results indicate that the maximum ECE occurs near the Curie temperature and it slightly shifts towards high temperatures. The directly measured ECE is larger than that calculated using the Maxwell relation and P-E loops. A maximum electrocaloric efficiency [Formula: see text][Formula: see text]KmV[Formula: see text] was procured for the composition with [Formula: see text] at [Formula: see text][Formula: see text]K. And it also shows a broad peak in the temperature range of 250–320[Formula: see text]K.
ISSN:2010-135X
2010-1368
DOI:10.1142/S2010135X18500388