Impact of phase transition sequence on the electrocaloric effect in Pb(Nb,Zr,Sn,Ti)O-3 ceramics

Xu, Zunping; Fan, Zhongming; Tan, Xiaoli; Liu, Xiaoming; Tan, Xiaoli

Impact of phase transition sequence on the electrocaloric effect in Pb(Nb,Zr,Sn,Ti)O-3 ceramics

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2017_Tan_ImpactPhase.pdf (762.83 KB)

Date

2017-02-21

Authors

Xu, Zunping

Fan, Zhongming

Tan, Xiaoli

Liu, Xiaoming

Tan, Xiaoli

Authors

Person

Tan, Xiaoli

Professor

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Organizational Unit

Materials Science and Engineering

Materials engineers create new materials and improve existing materials. Everything is limited by the materials that are used to produce it. Materials engineers understand the relationship between the properties of a material and its internal structure — from the macro level down to the atomic level. The better the materials, the better the end result — it’s as simple as that.

Department

Materials Science and Engineering

Abstract

The phase transition sequence in PbZrO3-based ceramics can be readily altered by chemical modification. In Pb0.99Nb0.02[(Zr0.57Sn0.43)(0.92)Ti-0.08](0.98)O-3 (PNZST 43/8/2), the sequence is ferroelectric-antiferroelectric-paraelectric during heating, while in Pb0.99Nb0.02 (Zr0.85Sn0.13Ti0.02)(0.98)O-3 (PNZST 13/2/2), it is antiferroelectric-ferroelectric-paraelectric during heating. The electrocaloric effect associated with the antiferroelectricferroelectric phase transition is studied in both ceramics via indirect measurement. PNZST 43/8/2 is observed to display a positive electrocaloric effect; in contrast, PNZST 13/2/2 exhibits a negative effect.

Comments

This article is published as Xu, Zunping, Zhongming Fan, Xiaoming Liu, and Xiaoli Tan. "Impact of phase transition sequence on the electrocaloric effect in Pb (Nb, Zr, Sn, Ti) O3 ceramics." Applied Physics Letters 110, no. 8 (2017): 082901. doi: 10.1063/1.4976827. Posted with permission.

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Sun Jan 01 00:00:00 UTC 2017

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