Fatigue-less electrocaloric effect in relaxor Pb(Mg1/3Nb2/3)O3 multilayer elements

Lovro Fulanović; Jurij Koruza; Nikola Novak; Florian Weyland; Barbara Malič; Vid Bobnar

doi:10.1016/j.jeurceramsoc.2017.06.011

Fatigue-less electrocaloric effect in relaxor Pb(Mg_1/3Nb_2/3)O₃ multilayer elements

Lovro Fulanović^*, Jurij Koruza, Nikola Novak, Florian Weyland, Barbara Malič, Vid Bobnar

^*Corresponding author for this work

Institute of Materials Science, Joining and Forming (3030)

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

Abstract

A study was made of the electrocaloric (EC) effect's stability in relaxor Pb(Mg_1/3Nb_2/3)O₃ multilayer elements. The sample was subjected to 10⁶ unipolar cycles at an electric field amplitude of 110 kV cm⁻¹. The dielectric and ferroelectric properties of the material change only slightly, while the microstructure does not reveal any detrimental evidence of the cycling. The initially measured EC temperature change of 1.45 K decreases by only 0.01 K upon cycling, exhibiting a fatigue-less behavior. The results justify the choice of relaxor multilayers as the working bodies in EC cooling devices, where the material should withstand numerous electric field cycles with high amplitudes, sometimes exceeding 100 kV cm⁻¹.

Original language	English
Pages (from-to)	5105-5108
Number of pages	4
Journal	Journal of the European Ceramic Society
Volume	37
Issue number	15
DOIs	https://doi.org/10.1016/j.jeurceramsoc.2017.06.011
Publication status	Published - Dec 2017

Keywords

Electrocaloric
Fatigue
Multilayer
PMN
Relaxors

ASJC Scopus subject areas

Ceramics and Composites
Materials Chemistry

Access to Document

10.1016/j.jeurceramsoc.2017.06.011

Cite this

@article{aad8d9196abe45c7920524d290f1332f,

title = "Fatigue-less electrocaloric effect in relaxor Pb(Mg1/3Nb2/3)O3 multilayer elements",

abstract = "A study was made of the electrocaloric (EC) effect's stability in relaxor Pb(Mg1/3Nb2/3)O3 multilayer elements. The sample was subjected to 106 unipolar cycles at an electric field amplitude of 110 kV cm−1. The dielectric and ferroelectric properties of the material change only slightly, while the microstructure does not reveal any detrimental evidence of the cycling. The initially measured EC temperature change of 1.45 K decreases by only 0.01 K upon cycling, exhibiting a fatigue-less behavior. The results justify the choice of relaxor multilayers as the working bodies in EC cooling devices, where the material should withstand numerous electric field cycles with high amplitudes, sometimes exceeding 100 kV cm−1.",

keywords = "Electrocaloric, Fatigue, Multilayer, PMN, Relaxors",

author = "Lovro Fulanovi{\'c} and Jurij Koruza and Nikola Novak and Florian Weyland and Barbara Mali{\v c} and Vid Bobnar",

note = "Funding Information: The authors would like to thank Silvo Drnov{\v s}ek, Jena Cilen{\v s}ek, and Mitja Jerlah for their help with the experimental work. The work was financially supported by the Slovenian Research Agency (PR‐06166, L2‐6768, L7-7580, P2‐0105, and P1-0125) and Deutsche Forschungsgemeinschaft (DFG) priority program (SPP 1599/2 NO 1221/1-2). L.F. acknowledges the support of the DFG within the collaborative research center SFB 595 (Electrical Fatigue of Functional Materials). L.F. would also like to thank Marko Vrabelj and Andra{\v z} Brade{\v s}ko for useful discussions. Publisher Copyright: {\textcopyright} 2017 Elsevier Ltd",

year = "2017",

month = dec,

doi = "10.1016/j.jeurceramsoc.2017.06.011",

language = "English",

volume = "37",

pages = "5105--5108",

journal = "Journal of the European Ceramic Society",

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T1 - Fatigue-less electrocaloric effect in relaxor Pb(Mg1/3Nb2/3)O3 multilayer elements

AU - Fulanović, Lovro

AU - Koruza, Jurij

AU - Novak, Nikola

AU - Weyland, Florian

AU - Malič, Barbara

AU - Bobnar, Vid

N1 - Funding Information: The authors would like to thank Silvo Drnovšek, Jena Cilenšek, and Mitja Jerlah for their help with the experimental work. The work was financially supported by the Slovenian Research Agency (PR‐06166, L2‐6768, L7-7580, P2‐0105, and P1-0125) and Deutsche Forschungsgemeinschaft (DFG) priority program (SPP 1599/2 NO 1221/1-2). L.F. acknowledges the support of the DFG within the collaborative research center SFB 595 (Electrical Fatigue of Functional Materials). L.F. would also like to thank Marko Vrabelj and Andraž Bradeško for useful discussions. Publisher Copyright: © 2017 Elsevier Ltd

PY - 2017/12

Y1 - 2017/12

N2 - A study was made of the electrocaloric (EC) effect's stability in relaxor Pb(Mg1/3Nb2/3)O3 multilayer elements. The sample was subjected to 106 unipolar cycles at an electric field amplitude of 110 kV cm−1. The dielectric and ferroelectric properties of the material change only slightly, while the microstructure does not reveal any detrimental evidence of the cycling. The initially measured EC temperature change of 1.45 K decreases by only 0.01 K upon cycling, exhibiting a fatigue-less behavior. The results justify the choice of relaxor multilayers as the working bodies in EC cooling devices, where the material should withstand numerous electric field cycles with high amplitudes, sometimes exceeding 100 kV cm−1.

AB - A study was made of the electrocaloric (EC) effect's stability in relaxor Pb(Mg1/3Nb2/3)O3 multilayer elements. The sample was subjected to 106 unipolar cycles at an electric field amplitude of 110 kV cm−1. The dielectric and ferroelectric properties of the material change only slightly, while the microstructure does not reveal any detrimental evidence of the cycling. The initially measured EC temperature change of 1.45 K decreases by only 0.01 K upon cycling, exhibiting a fatigue-less behavior. The results justify the choice of relaxor multilayers as the working bodies in EC cooling devices, where the material should withstand numerous electric field cycles with high amplitudes, sometimes exceeding 100 kV cm−1.

KW - Electrocaloric

KW - Fatigue

KW - Multilayer

KW - PMN

KW - Relaxors

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