Results 11 to 20 of about 397,952 (307)

Modification of physical properties of Ba(Ni1/3Nb2/3)O3 ceramics through ordered domain engineering

Journal of Materiomics, 2022
Ordered domain engineering has been further developed for modifying and improving physical properties in complex perovskite ceramics. In the present work, Ba(Ni1/3Nb2/3)O3 ceramic is taken as a typical example for ordered domain engineering, in which the
Rui Da Shi, Mei Ying Liu, Xiao Li Zhu, Xiang Ming Chen   +3 more
doaj   +1 more source

Room-temperature ferroelectricity in A-site ordered Ruddlesden-Popper Li2CaTa2O7 ceramics

Journal of Materiomics, 2020
In the present work, the crystal structure, ferroelectric and dielectric properties of the dense single-phase Li2CaTa2O7 ceramics with A-site ordered double-layer Ruddlesden-Popper structures have been investigated by the experiments and first-principles
B.H. Zhang, Z.Z. Hu, B.H. Chen, X.Q. Liu, X.M. Chen   +4 more
doaj   +1 more source

High energy storage properties in CaLaTiO3-modified NaNbO3-based lead-free antiferroelectric ceramics

Journal of Advanced Dielectrics, 2023
In this work, (1 [Formula: see text])(0.92NaNbO3–0.08BaTiO3)–[Formula: see text]Ca[Formula: see text]La[Formula: see text]TiO3 (NNBT – [Formula: see text]CLT) ceramics were successfully designed and prepared by the solid-state reaction method ...
Cen Liang, Changyuan Wang, Wenjun Cao, Hanyu Zhao, Feng Li, Chunchang Wang   +5 more
doaj   +1 more source

Mode-matching analysis of a shielded rectangular dielectric-rod waveguide [PDF]

, 2005
Rectangular cross-section dielectric waveguides are widely used at millimeter wavelengths. In addition, shielded dielectric resonators having a square cross-section are often used as filter elements, however there is almost no information available on ...
Ball, James A. R., Wells, Colin G.
core   +2 more sources

High dielectric constant and low temperature ferroelectric-phase-transition in Ca, Pb co-doped BiFeO3

Results in Physics, 2021
BiFeO3 was co-doped with (Ca, Pb) to obtain Bi1-x(Ca1/2Pb1/2)xFeO3 (x = 0, 0.1 and 0.3) and their structural, morphological, dielectric and ferroelectric properties were studied.
Rida Ahmed, RenJun Si, Sajid ur Rehman, Yi Yu, QiuJu Li, Chunchang Wang   +5 more
doaj   +1 more source

Giant room temperature elastocaloric effect in metal-free thin-film perovskites

npj Computational Materials, 2021
Solid-state refrigeration which is environmentally benign has attracted considerable attention. Mechanocaloric (mC) materials, in which the phase transitions can be induced by mechanical stresses, represent one of the most promising types of solid-state ...
Cheng Li, Yu Hui Huang, Jian-Jun Wang, Bo Wang, Yong Jun Wu, He Tian, Long-Qing Chen, Zijian Hong   +7 more
doaj   +1 more source

The Role of the Accumulated Surface Charge on Nanoparticles in Improving the Breakdown Strength of Liquid and Solid Insulation

Energies, 2022
In this paper, the role of the accumulated surface charge on the surfaces of nanoparticles on breakdown strength for liquid and solid dielectrics is presented. The breakdown strengths of a nanofilled liquid dielectric and a solid dielectric are evaluated.
Mohamed E. Ibrahim, Elsayed Tag Eldin, Safaa F. Elzoghby, Mohamed A. Izzularab, Amr M. Abd-Elhady   +4 more
doaj   +1 more source

Nanoscale dielectric properties of insulating thin films: From single point measurements to quantitative images [PDF]

, 2010
Dielectric relaxation (DR) has shown to be a very useful technique to study dielectric materials like polymers and other glass formers, giving valuable information about the molecular dynamics of the system at different length and time scales.
Alegría, Angel, Arinero, Richard, Colmenero, Juan, Lévêque, Gérard, Riedel, Clément, Schwartz, Gustavo Ariel, Tordjeman, Philippe   +6 more
core   +4 more sources

Structural and magnetic properties of La0.7Sr0.3MnO3 ferromagnetic thin film grown on PMN-PT by sol–gel method [PDF]

Journal of Advanced Dielectrics, 2017
We report the preparation of epitaxial La0.7Sr0.3MnO3 thin films grown on (001)-oriented 0.72Pb(Mg1∕3Nb2∕3)O3-0.28PbTiO3 substrates by the sol–gel technique.
Jing Zhang, Peng Shi, Mingmin Zhu, Ming Liu, Wei Ren, Zuoguang Ye   +5 more
doaj   +1 more source

Electric-field-controlled magnetism due to field-induced transition of Pna21/R3c in Bi1-xGdxFeO3 ceramics

Journal of Materiomics, 2021
BiFeO3 has been recognized as one of the most important room-temperature single-phase multiferroic materials, but it still suffers from several drawbacks especially the weak magnetoelectric coupling.
Jing Chen, Nan Su, Xiao Li Zhu, Xiao Qiang Liu, Jin-Xing Zhang, Xiang Ming Chen   +5 more
doaj   +1 more source