Results 41 to 50 of about 2,525 (200)

Energy-storage properties and electrocaloric effects of Pb(1-3x/2)LaxZr0.85Ti0.15O3 antiferroelectric thick films [PDF]

open access: yes, 2014
1-µm-Pb(1-3x/2)LaxZr0.85Ti0.15O3 (PLZT) antiferroelectric (AFE) thick films with x = 0.08, 0.10, 0.12, and 0.14 were deposited on LaNiO3/Si (100) substrates by a sol-gel method.
Hao, Xihong, Zhang, Qi, Zhao, Ye
core   +1 more source

Influence of grain size on the electrocaloric and pyroelectric properties in non-reducible BaTiO3 ceramics

open access: yesAIP Advances, 2020
The present work demonstrates the effect of the grain size on electrocaloric and pyroelectric properties in BaTiO3-based ceramics prepared by a chemical coating method and then sintered in a reducing atmosphere at different temperatures.
Satyanarayan Patel, Manish Kumar
doaj   +1 more source

Large electrocaloric effect in lead-free ferroelectric Ba0.85Ca0.15Ti0.9Zr0.1O3 thin film heterostructure

open access: yesAPL Materials, 2021
A large electrocaloric effect is reported in a strain-engineered Ba0.85Ca0.15Ti0.9Zr0.1O3 (BCZT) thin film heterostructure driven by the near room-temperature electro-structural phase transition.
Abhisikta Barman   +7 more
doaj   +1 more source

Direct measurement of electrocaloric effect in lead-free Ba(SnxTi1-x)O3 ceramics [PDF]

open access: yes, 2017
In this study, we report on investigation of the electrocaloric (EC) effect in lead-free Ba(SnxTi1-x)O3 (BSnT) ceramics with compositions in the range of 0.08 ≤ x ≤ 0.15 by the direct measurement method using a differential scanning calorimeter.
Dkhil, Brahim   +6 more
core   +3 more sources

The impact of hysteresis on the electrocaloric effect at first-order phase transitions

open access: yes, 2017
We study the impact of thermal hysteresis at the first-order structural/ferroelectric phase transitions on the electrocaloric response in bulk BaTiO$_3$ by performing molecular dynamics simulations for a first-principles-based effective Hamiltonian.
Ederer, Claude   +2 more
core   +1 more source

Large electrocaloric effects in single-crystal ammonium sulfate [PDF]

open access: yesPhilosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2016
Electrocaloric (EC) effects are typically studied near phase transitions in ceramic and polymer materials. Here, we investigate EC effects in an inorganic salt, namely ammonium sulfate (NH 4 ) 2 SO 4 , with an order–disorder transition whose onset occurs at 223 K on ...
Crossley, S, Li, W, Moya, X, Mathur, ND
openaire   +2 more sources

Indirect Evaluation of the Electrocaloric Effect in PbZrTiO3 (20/80)-Based Epitaxial Thin Film Structures

open access: yesElectronic Materials, 2022
Electrocaloric effect is the adiabatic temperature change in a dielectric material when an electric field is applied or removed, and it can be considered as an alternative refrigeration method. Materials with ferroelectric order exhibit large temperature
Georgia A. Boni   +7 more
doaj   +1 more source

Step-like features on caloric effects of graphenes

open access: yes, 2014
We considered a graphene nano-ribbon with a longitudinal electric field (along $x$ direction) and a transversal magnetic field (along $z$ direction), and then observe (i) the electrocaloric effect ruled by an applied magnetic field and (ii) the ...
Reis, M. S.
core   +1 more source

Enhanced energy-storage performance and electrocaloric effect in compositionally graded Pb(1−3x/2)LaxZr0.85Ti0.15O3 antiferroelectric thick films [PDF]

open access: yes, 2015
The compositionally graded multilayer Pb(1−3x/2)LaxZr0.85Ti0.15O3 (PLZT) antiferroelectric (AFE) thick films were deposited on LaNiO3/Si (100) substrates by using a sol–gel method.
Hao, Xihong, Zhang, Qi, Zhao, Ye
core   +1 more source

Thermal management of chips by a device prototype using synergistic effects of 3-D heat-conductive network and electrocaloric refrigeration

open access: yesNature Communications, 2022
Efficient thermal structure and precise heat management become a substantial challenge for electronics. Here, authors utilize the synergistic effect of classic heat transfer and electrocaloric cooling for fixed-point thermal management of chips.
Ming-Ding Li   +7 more
doaj   +1 more source

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