TY - JOUR
T1 - Electrocaloric response near room temperature in Zr- and Sn-doped BaTiO3 systems
AU - Hou, Ying
AU - Yang, Lu
AU - Qian, Xiaoshi
AU - Zhang, Tian
AU - Zhang, Q. M.
N1 - Publisher Copyright:
© 2016 The Author(s) Published by the Royal Society. All rights reserved.
PY - 2016/8/13
Y1 - 2016/8/13
N2 - The electrocaloric effect (ECE) in (1 - x)BaZr0.18Ti0.82O3-(x)BaSn0.11Ti0.89O3(BZT18-BST11, 0.1 ≤ x ≤ 0.5) ceramics is investigated near room temperature using a calorimetry method. The ceramics exhibit relaxor-like ferroelectric characteristics and by merging phases, a large electrocaloric (EC) response is observed in the system. The largest entropy change is 4.8 Jkg-1 K-1 (along with a temperature change of 3.5 K), which is induced under an electric field of 10 MV m-1 for the 0.8 BaZr0.18 Ti0.82O3 -0.2 BaSn0.11Ti0.89O3 ceramics. This result reveals that the coexistence of multiple phases improves the ECE of the ceramics, which provides an effective route to achieve a large EC response using a small electric field. This article is part of the themed issue 'Taking the temperature of phase transitions in cool materials'.
AB - The electrocaloric effect (ECE) in (1 - x)BaZr0.18Ti0.82O3-(x)BaSn0.11Ti0.89O3(BZT18-BST11, 0.1 ≤ x ≤ 0.5) ceramics is investigated near room temperature using a calorimetry method. The ceramics exhibit relaxor-like ferroelectric characteristics and by merging phases, a large electrocaloric (EC) response is observed in the system. The largest entropy change is 4.8 Jkg-1 K-1 (along with a temperature change of 3.5 K), which is induced under an electric field of 10 MV m-1 for the 0.8 BaZr0.18 Ti0.82O3 -0.2 BaSn0.11Ti0.89O3 ceramics. This result reveals that the coexistence of multiple phases improves the ECE of the ceramics, which provides an effective route to achieve a large EC response using a small electric field. This article is part of the themed issue 'Taking the temperature of phase transitions in cool materials'.
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U2 - 10.1098/rsta.2016.0055
DO - 10.1098/rsta.2016.0055
M3 - Article
AN - SCOPUS:84978264040
SN - 1364-503X
VL - 374
JO - Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences
JF - Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences
IS - 2074
M1 - 20160055
ER -