z-logo
Premium
Electrocaloric Behavior and Temperature‐Dependent Scaling of Dynamic Hysteresis of Ba 0.85 Ca 0.15 Ti 0.9 Zr 0.1 O 3 Ceramics
Author(s) -
Patel Satyanarayan,
Chauhan Aditya,
Vaish Rahul
Publication year - 2015
Publication title -
international journal of applied ceramic technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.4
H-Index - 57
eISSN - 1744-7402
pISSN - 1546-542X
DOI - 10.1111/ijac.12418
Subject(s) - electrocaloric effect , scaling , materials science , hysteresis , ferroelectricity , condensed matter physics , exponent , adiabatic process , coercivity , electric field , polarization (electrochemistry) , thermodynamics , maxwell relations , physics , dielectric , mathematics , quantum mechanics , chemistry , linguistics , philosophy , geometry , optoelectronics , inhomogeneous electromagnetic wave equation , optical field
This article presents electrocaloric effect in Ba 0.85 Ca 0.15 Ti 0.9 Zr 0.1 O 3 ( BCTZO ) using an indirect approach based on Maxwell's relations. The peak electrocaloric performance is found to be an adiabatic temperature change of 0.41 K with electrocaloric strength of 19 mK cm/kV and a heat carrying capacity of ~0.17 J/g under an electric field of 0–21.5 kV/cm. The ferroelectric hysteresis scaling relations for coercive field ( E C ), remnant polarization ( P r ), and hysteresis area (< A >) as a function of temperature ( T ) are also systematically investigated. The power‐law temperature exponents are obtained for all the hysteresis parameters. The scaling relations are established as E c ∝ T −0.6584 , P r ∝ T −1.59 , and < A > ∝ T −1.01623 . The presented scaling relations are compared with those reported in the literature for other ferroelectric materials.

This content is not available in your region!

Continue researching here.

Having issues? You can contact us here