Results 11 to 20 of about 8,790 (190)

Dielectric and electro-mechanic nonlinearities in perovskite oxide ferroelectrics, relaxors, and relaxor ferroelectrics [PDF]

open access: yesJournal of Applied Physics, 2021
The polarization and strain response of ferroelectric materials at electric fields below the macroscopic coercive field is of paramount importance for the operation of many electronic devices. The response of real ferroelectric and related materials is, in general, complex and difficult to interpret.
Lukas M. Riemer   +5 more
openaire   +2 more sources

Giant dynamic electromechanical response via field driven pseudo-ergodicity in nonergodic relaxors

open access: yesNature Communications, 2023
Enhanced electromechanical response can commonly be found during the crossover from normal to relaxor ferroelectric state, making relaxors to be potential candidates for actuators.
He Qi   +5 more
doaj   +1 more source

Critical state to achieve a giant electric field-induced strain with a low hysteresis in relaxor piezoelectric ceramics

open access: yesJournal of Materiomics, 2021
Due to the extrinsic contribution of domain wall motions to electro-strains, the incompatibility of the large electro-strain with a low hysteresis in piezoelectric ceramics is a stumbling block for designing high-performance piezoelectrical actuators ...
Xiang Xia   +6 more
doaj   +1 more source

Semiconductor/relaxor 0–3 type composites: A novel strategy for energy storage capacitors

open access: yesJournal of Science: Advanced Materials and Devices, 2021
We report a novel strategy to enhance the dielectric breakdown strength and the energy storage performance of lead-free relaxor ferroelectric ceramics through the fabrication of semiconductor/relaxor 0–3 type composites based on 0.6Ba(Zr0.2Ti0.8)O3-0.4 ...
A.R. Jayakrishnan   +5 more
doaj   +1 more source

High Entropy Oxide Relaxor Ferroelectrics

open access: yesACS Applied Materials & Interfaces, 2022
Relaxor ferrolectrics are important in technological applications due to a strong electromechanical response, energy storage capacity, electrocaloric effect, and pyroelectric energy conversion properties. Current efforts to discover and design new materials in this class generally rely on substitutional doping of known ferroelectrics, as slight changes
Yogesh Sharma   +15 more
openaire   +3 more sources

Energy storage and relaxor behavior in (PbBa)[(ZnNb)Ti]O3 ferroelectric ceramic

open access: yesJournal of Advanced Dielectrics, 2023
(Pb[Formula: see text]Ba[Formula: see text])[(Zn[Formula: see text]Nb[Formula: see text])[Formula: see text]Ti[Formula: see text]]O3 relaxor-type ferroelectric ceramics was obtained via classical solid-state reaction.
A. Peláiz-Barranco   +3 more
doaj   +1 more source

Enhanced Energy‐Storage Properties and Good Temperature Stability in 0.92(Sr0.7Bi0.2)TiO3–0.08Bi(Mg0.5Hf0.5)O3 Relaxor Ferroelectric Ceramic

open access: yesAdvanced Energy & Sustainability Research, 2021
Herein, the (1 − x)(Sr0.7Bi0.2)TiO3–xBi(Mg0.5Hf0.5)O3 (SBT–100xBMH, x = 0.04–0.10) relaxor ferroelectric ceramics are fabricated via the high‐temperature solid‐state reaction method.
Xi Kong   +3 more
doaj   +1 more source

A review of ferroelectric materials for high power devices

open access: yesJournal of Materiomics, 2022
Compact autonomous ultrahigh power density energy storage and power generation devices that exploit the spontaneous polarization of ferroelectric materials are capable of producing hundreds of kilovolt voltages, multi-kiloampere currents, and megawatt ...
Sergey I. Shkuratov   +1 more
doaj   +1 more source

Dielectric and ferroelectric characteristics of Ba(Ti0.25Zr0.25Hf0.25Sn0.25)O3 high-entropy ceramics

open access: yesJournal of Materiomics, 2023
Ba(Ti0.25Zr0.25Hf0.25Sn0.25)O3 high-entropy ceramics were prepared by a standard solid state reaction process, and the dielectric and ferroelectric characteristics were investigated together with the structures.
Rui Hu Mi   +3 more
doaj   +1 more source

BS0.5BNT-based relaxor ferroelectric ceramic/glass–ceramic composites for energy storage

open access: yesJournal of Advanced Ceramics, 2023
Relaxor ferroelectric ceramics have very high dielectric constant (εr) but relatively low electrical breakdown strength (Eb), while glass–ceramics exhibit higher Eb due to the more uniformly dispersed amorphous phases and submicrocrystals/nanocrystals ...
Xuhai Shi   +10 more
doaj   +1 more source

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