Electrocaloric properties of PZT- and BaTiO&lt;inf&gt;3&lt;/inf&gt;- based ceramics and LiNbO&lt;inf&gt;3&lt;/inf&gt; crystals

Maiwa, Hiroshi; Tsutsui, N; Sakamoto, Wataru

doi:10.1109/isaf.2015.7172685

2015 Joint IEEE International Symposium on the Applications of Ferroelectric (ISAF), International Symposium on Integrated Func 2015

DOI: 10.1109/isaf.2015.7172685

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Electrocaloric properties of PZT- and BaTiO<inf>3</inf>- based ceramics and LiNbO<inf>3</inf> crystals

Hiroshi Maiwa

N Tsutsui²,

Wataru Sakamoto

Abstract: Electrocaloric properties of PZT-and BaTiO 3based ceramics and LiNbO 3 Crystals were investigated by indirect estimation and direct measurement of temperatureelectric field (T-E) hysteresis loops. The measured T-E loops showed similar shape with strain-electric field (s-E) loops. Index Terms-Electrocaloric effect, PZT, LiNbO 3 , PMN-PT

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Electrocaloric properties of potassium tantalate niobate crystals

Maiwa

2016

Jpn. J. Appl. Phys.

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The electrocaloric properties of potassium tantalate niobate (KTN) crystals were investigated by indirect estimation and direct measurement of temperature–electric field (T–E) hysteresis loops. The measured T–E loops showed a similar shape to strain–electric field (s–E) loops. The adiabatic temperature change ΔT due to the electrocaloric effect was estimated from the polarization change of this sample to be 0.49 K under a field of 20 kV/cm. The measured temperature change ΔT in these samples upon the release of the electric field from 20 kV/cm to zero was 0.42 K. The temperature dependences of the electromechanical and electrocaloric properties were measured. The maximum performance appeared at approximately the phase transition temperature of KTN crystal and the properties were relatively moderate-temperature-dependent.

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Electrocaloric properties of potassium tantalate niobate crystals

Maiwa

2016

Jpn. J. Appl. Phys.

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Electrocaloric properties of PZT- and BaTiO<inf>3</inf>- based ceramics and LiNbO<inf>3</inf> crystals

Cited by 1 publication

References 21 publications

Electrocaloric properties of potassium tantalate niobate crystals

Electrocaloric properties of potassium tantalate niobate crystals

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