Electrocaloric response near room temperature in Zr- and Sn-doped BaTiO3 systems

Ying Hou; Lu Yang; Xiaoshi Qian; Tian Zhang; Q. M. Zhang

doi:10.1098/rsta.2016.0055

Electrocaloric response near room temperature in Zr- and Sn-doped BaTiO3 systems

Ying Hou
, Lu Yang
, Xiaoshi Qian
, Tian Zhang
, Q. M. Zhang

Research output: Contribution to journal › Article › peer-review

38 Scopus citations

Abstract

The electrocaloric effect (ECE) in (1 - x)BaZr_0.18Ti_0.82O₃-(x)BaSn_0.11Ti_0.89O₃(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 BaZr_0.18 Ti_0.82O₃ -0.2 BaSn_0.11Ti_0.89O₃ 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'.

Original language	English (US)
Article number	20160055
Journal	Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences
Volume	374
Issue number	2074
DOIs	https://doi.org/10.1098/rsta.2016.0055
State	Published - Aug 13 2016

All Science Journal Classification (ASJC) codes

General Mathematics
General Engineering
General Physics and Astronomy

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10.1098/rsta.2016.0055

Cite this

@article{d5cd535fcd9e4424bb5aa1b0fad68f9e,

title = "Electrocaloric response near room temperature in Zr- and Sn-doped BaTiO3 systems",

abstract = "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'.",

author = "Ying Hou and Lu Yang and Xiaoshi Qian and Tian Zhang and Zhang, \{Q. M.\}",

year = "2016",

month = aug,

day = "13",

doi = "10.1098/rsta.2016.0055",

language = "English (US)",

volume = "374",

journal = "Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences",

issn = "1364-503X",

publisher = "Royal Society Publishing",

number = "2074",

}

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.

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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DO - 10.1098/rsta.2016.0055

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JO - Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences

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IS - 2074

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Electrocaloric response near room temperature in Zr- and Sn-doped BaTiO3 systems

Abstract

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