Direct Electrocaloric Characterization of Ceramic Films.
Sign Up to like & getrecommendations! Published in 2023 at "Small methods"
DOI: 10.1002/smtd.202300212
Abstract: Reliable and accurate characterization of the electrocaloric effect is necessary to understand the intrinsic properties of materials. To date, several methods are developed to directly measure the electrocaloric effect. However, each of them has some… read more here.
Keywords: characterization ceramic; electrocaloric effect; direct electrocaloric; ceramic films ... See more keywords
Enhanced electrical properties and large electrocaloric effect in lead-free Ba0.8Ca0.2ZrxTi1−xO3 (x = 0 and 0.02) ceramics
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Materials Science: Materials in Electronics"
DOI: 10.1007/s10854-020-04259-w
Abstract: The effects of 2% Zr introduction in Ba0.8Ca0.2TiO3 (BCT) system on its electrical and electrocaloric properties was investigated. BCT and Ba0.8Ca0.2Zr0.02Ti0.98O3 (BCZT) ceramics synthesized by solid-state processing were crystallized in a pure perovskite phase with… read more here.
Keywords: electrocaloric effect; bct; lead free; bczt ... See more keywords
Influence of microstructure features on electrocaloric effect in ferroelectric ceramics
Sign Up to like & getrecommendations! Published in 2018 at "Ceramics International"
DOI: 10.1016/j.ceramint.2018.02.008
Abstract: Abstract The electrocaloric effect (ECE) in the ferroelectric ceramics is determined by both the composition and the microstructure. This paper demonstrated the influences of the microstructure features on the ECE in BaTiO 3 ceramics. When… read more here.
Keywords: electrocaloric effect; microstructure features; ferroelectric ceramics; influence microstructure ... See more keywords
Electric field induced phase transitions and electrocaloric effect of La3+ doped Pb(Zr,Sn,Ti)O3 ceramics
Sign Up to like & getrecommendations! Published in 2021 at "Ceramics International"
DOI: 10.1016/j.ceramint.2021.01.262
Abstract: Abstract Electrocaloric effect (ECE) is considered well applicable in the field of next generation solid state refrigeration technology. In this article, the structural properties and ECE response were altered and optimized by tailoring the Zr/Ti… read more here.
Keywords: field; electric field; electrocaloric effect; state ... See more keywords
Thickness dependence of electrocaloric effect in high-temperature sintered Ba0.8Sr0.2TiO3 ceramics
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Alloys and Compounds"
DOI: 10.1016/j.jallcom.2017.11.015
Abstract: Abstract This paper demonstrated the thickness dependence of electrocaloric effect (ECE) in Ba0.8Sr0.2TiO3 ferroelectric ceramics. The high-temperature sintered sample has inhomogeneous properties along the thickness direction although the microstructure has uniform features throughout. The core… read more here.
Keywords: dependence electrocaloric; electrocaloric effect; thickness dependence; 8sr0 2tio3 ... See more keywords
Effect of phase transition on electrocaloric effect in Indium substituted BaTiO3 ceramics
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Alloys and Compounds"
DOI: 10.1016/j.jallcom.2019.153632
Abstract: Abstract In the present work the dense Ba(Ti1-xInx)O3-x/2 ceramics were prepared through a standard solid-state sintering method. Although only a tetragonal phase is detected by the X-ray diffraction in these ceramics, the coexistence of multiphase… read more here.
Keywords: electrocaloric effect; transition; phase transition; effect phase ... See more keywords
Tailoring the negative electrocaloric effect of PbZrO3 antiferroelectric thin films by Yb doping
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Alloys and Compounds"
DOI: 10.1016/j.jallcom.2020.154581
Abstract: Abstract A novel electrocaloric material system, Yb doped PbZrO3 (PYZ) antiferroelectric (AFE) thin films with the content of Yb from 0 to 3.0 mol% were fabricated by the sol-gel method. The influence of the Yb contents… read more here.
Keywords: electrocaloric effect; thin films; pbzro3; negative electrocaloric ... See more keywords
Enhanced electrocaloric effect in BaSn/TiO3 ceramics by addition of CuO
Sign Up to like & getrecommendations! Published in 2021 at "Journal of Alloys and Compounds"
DOI: 10.1016/j.jallcom.2020.156772
Abstract: Abstract For several decades, ferroelectrics with enhanced electrocaloric (EC) effect have served as competitive alternatives for solid-state cooling devices. In order to enhance the EC effect, there has been increasing research interest on exploring novel… read more here.
Keywords: electrocaloric effect; cuo; enhanced electrocaloric; effect ... See more keywords
Direct and indirect studies of the electrocaloric effect in single crystalline ferrielectric (NH4)2SO4
Sign Up to like & getrecommendations! Published in 2022 at "Journal of Alloys and Compounds"
DOI: 10.1016/j.jallcom.2021.162130
Abstract: Abstract The influence of an electric field on the phase transition parameters and the electrocaloric response in ferrielectric (NH4)2SO4 was studied using a universal multifunctional adiabatic calorimeter. The very low sensitivity of the phase transition… read more here.
Keywords: electrocaloric effect; nh4 2so4; ferrielectric nh4; direct indirect ... See more keywords
Defect Dipole Induced Improved Electrocaloric Effect in Modified NBT-6BT Lead-Free Ceramics
Sign Up to like & getrecommendations! Published in 2022 at "Journal of Alloys and Compounds"
DOI: 10.1016/j.jallcom.2022.163837
Abstract: The Rietveld refinement of the polycrystalline powders of 1% Fe and Mn-doped (Na0.5Bi0.5)0.94Ba0.06Ti0.98V0.02O3 at the Ti-site confirmed a single rhombohedral (R3c) phase. The bandgap, (Eg) was affected by the anti-phase octahedral tilt angle and the… read more here.
Keywords: defect dipole; induced improved; improved electrocaloric; due doping ... See more keywords
Coexistence of negative and positive electrocaloric effect in Sr and Nb co-doped Pb(Zr,Ti)O3 ferroelectric ceramics
Sign Up to like & getrecommendations! Published in 2017 at "Materials Letters"
DOI: 10.1016/j.matlet.2016.11.006
Abstract: Abstract The electrocaloric effect has been investigated in Sr and Nb co-doped Pb(Zr,Ti)O 3 (PSNZT) ceramics synthesized by conventional solid state reaction. The coexistence of negative and positive electrocaloric effect was revealed in PSNZT ceramics.… read more here.
Keywords: electrocaloric effect; positive electrocaloric; effect; negative positive ... See more keywords