Results 11 to 20 of about 629 (158)

Temperature-dependent energy storage characterization of Pb-free relaxor ferroelectrics [PDF]

open access: yesJournal of Advanced Dielectrics, 2020
The energy storage properties of (1−x)Bi0.5Na0.5TiO3–xBaTiO3(0≤x≤0.08) (BNT–BT) ceramics obtained via sol–gel method are determined from the polarization versus electric field (P–E) loops at various temperatures. The energy storage densities are observed
Sarir Uddin   +4 more
doaj   +1 more source

Flexible multilayer lead-free film capacitor with high energy storage performances via heterostructure engineering

open access: yesJournal of Materiomics, 2022
The immense potential of flexible energy storage materials applied in wearable electronic devices has stimulated a lot of science researches on manufacturing technology and performance optimization.
Ningning Sun   +7 more
doaj   +1 more source

Enhanced strain and electrostrictive properties in lead-free BNT-based ceramics via rare earth doping

open access: yesJournal of Materiomics, 2022
Bi0.5Na0.5TiO3 (BNT)-based ceramics are one of the most promising lead-free ferroelectrics due to their high strain property. Compared to other chemical modifications, rare earth ions doping provides significant possibility to optimize the strain ...
Anping Deng, Jiagang Wu
doaj   +1 more source

Oxygen vacancy migration and its lattice structural origin in A-site non-stoichiometric bismuth sodium titanate perovskites

open access: yesJournal of Materiomics, 2022
Off-stoichiometry of perovskite structural Bi0.5Na0.5TiO3 (BNT) ferroelectrics can give rise to considerable oxide-ion conductivity. The inherent structural characteristics are urgent to be resolved due to its particular sensitivity of the conduction ...
Jing Shi   +8 more
doaj   +1 more source

Composition-sensitive electrical properties of charge nonstoichiometric 0.94Bi0.5+xNa0.5−xTiO3–0.06BaTiO3 ceramics [PDF]

open access: yesJournal of Advanced Dielectrics, 2019
Charge nonstoichiometric 0.94Bi0.5+xNa0.5−xTiO3–0.06BaTiO3 (BNT-BT) (x=−0.02,−0.01,0,0.01,0.02) ceramics were prepared and investigated. The depolarization temperature was dependent on composition and the ferroelectric property of x>0 was suppressed more
Ji Zhang   +6 more
doaj   +1 more source

Dielectric behaviors and relaxor characteristics in Bi0.5Na0.5TiO3-BaTiO3 ceramics [PDF]

open access: yesJournal of Advanced Dielectrics, 2019
Microstructure and dielectric behaviors of heating/cooling and bias-field were investigated in lead-free ceramics (1−x)Bi0.5Na0.5TiO3−xBaTiO3 (BNT−xBT, x=0, 0.02, 0.04, 0.06, 0.08 and 0.10).
Pei Chen   +8 more
doaj   +1 more source

Microstructures and photovoltaic effect of Ba/Fe modified Bi0.5Na0.5TiO3 ferroelectric ceramics [PDF]

open access: yesAPL Electronic Devices
Oxide ferroelectrics have great potential applications in optoelectronic and solar devices. However, most oxide ferroelectrics show wide bandgaps (>3.2 eV), limiting their use in the photovoltaic field.
Mingqiang Zhong   +6 more
doaj   +1 more source

Elastic, dielectric and electromechanical properties of (Bi0.5Na0.5)TiO3-BaTiO3 piezoceramics at the morphotropic phase boundary region [PDF]

open access: yes, 2016
A systematic study of the functional properties of the (1-x)(Bi0.5Na0.5)TiO3–xBaTiO3 (BNT-xBT) piezoceramic system for 0.05 = x = 0.07 is performed. The samples are obtained through the conventional solid-state route.
Cerdeiras Montero, Elena   +5 more
core   +3 more sources

Correlations between structure, microstructure, density and dielectric properties of the lead-free ferroelectrics Bi0.5(Na,K)0.5TiO3 [PDF]

open access: yesJournal of Advanced Dielectrics, 2015
Solid solutions of the lead-free ferroelectric oxides Bi0.5Na0.5TiO3 (BNT) and Bi0.5K0.5TiO3 (BKT), represented as (1−x)BNT–xBKT, are studied for very close compositions in the range 0≤x≤0.36 to understand the correlation between the structure and the ...
K. Anjali, T. G. Ajithkumar, P. A. Joy
doaj   +1 more source

Bismuth Sodium Titanate Based Materials for Piezoelectric Actuators [PDF]

open access: yes, 2015
The ban of lead in many electronic products and the expectation that, sooner or later, this ban will include the currently exempt piezoelectric ceramics based on Lead-Zirconate-Titanate has motivated many research groups to look for lead-free substitutes.
Antonio Feteira   +12 more
core   +2 more sources

Home - About - Disclaimer - Privacy