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A multicaloric material as a link between electrocaloric and magnetocaloric refrigeration.

ABSTRACT: The existence and feasibility of the multicaloric, polycrystalline material 0.8Pb(Fe1/2Nb1/2)O3-0.2Pb(Mg1/2W1/2)O3, exhibiting magnetocaloric and electrocaloric properties, are demonstrated. Both the electrocaloric and magnetocaloric effects are observed over a broad temperature range below room temperature. The maximum magnetocaloric temperature change of ~0.26?K is obtained with a magnetic-field amplitude of 70 kOe at a temperature of 5?K, while the maximum electrocaloric temperature change of ~0.25?K is obtained with an electric-field amplitude of 60?kV/cm at a temperature of 180?K. The material allows a multicaloric cooling mode or a separate caloric-modes operation depending on the origin of the external field and the temperature at which the field is applied.

SUBMITTER: Ursic H

PROVIDER: S-EPMC4879550 | biostudies-literature | 2016 May

REPOSITORIES: biostudies-literature

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A multicaloric material as a link between electrocaloric and magnetocaloric refrigeration.

Ursic Hana H Bobnar Vid V Malic Barbara B Filipic Cene C Vrabelj Marko M Drnovsek Silvo S Jo Younghun Y Wencka Magdalena M Kutnjak Zdravko Z

Scientific reports 20160525

The existence and feasibility of the multicaloric, polycrystalline material 0.8Pb(Fe1/2Nb1/2)O3-0.2Pb(Mg1/2W1/2)O3, exhibiting magnetocaloric and electrocaloric properties, are demonstrated. Both the electrocaloric and magnetocaloric effects are observed over a broad temperature range below room temperature. The maximum magnetocaloric temperature change of ~0.26 K is obtained with a magnetic-field amplitude of 70 kOe at a temperature of 5 K, while the maximum electrocaloric temperature change of ...[more]

PMID: 27220403

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