Results 21 to 30 of about 27,906 (302)

EFFECT OF TEMPERATURE ON DIELECTRIC, FERROELECTRIC, AND PIEZOELECTRIC PROPERTIES OF KNLNS-BNKZ CERAMICS

open access: yesTạp chí Khoa học Đại học Đà Lạt, 2021
Traditional ceramic technology combined with a two-step sintering technique has been applied to prepare 0.96(K0.48Na0.48Li0.04)(Nb0.95Sb0.05)O3-0.04Bi0.5(Na0.82K0.18)0.5ZrO3 (KNLNS-BNKZ) piezoelectric ceramics.
Phan Dinh Gio, Bui Thi Tuyet Nhung
doaj   +1 more source

Ultra-slim electrostrains with superior temperature-stability in lead-free sodium niobate-based ferroelectric perovskite

open access: yesJournal of Materiomics, 2022
Large electrostrains with high temperature stability and low hysteresis are essential for applications in high-precision actuator devices. However, achieving simultaneously all three of the aforementioned features in ferroelectric ceramics remains a ...
Ruiyi Jing   +10 more
doaj   +1 more source

Effect of ionic radii on the Curie temperature in Ba1-x-ySrxCayTiO3 compounds [PDF]

open access: yes, 2016
A series of Ba1-x-ySrxCayTiO3 compounds were prepared with varying average ionic radii and cation disorder on A-site. All samples showed typical ferroelectric behavior.
Alford, N, Berenov, AV, Le Goupil, F
core   +2 more sources

A Mesoscopic Electromechanical Theory of Ferroelectric Films and Ceramics [PDF]

open access: yes, 2002
We present a multi-scale modelling framework to predict the effective electromechanical behavior of ferroelectric ceramics and thin films. This paper specifically focuses on the mesoscopic scale and models the effects of domains and domain switching ...
Bhattacharya, Kaushik, Li, Jiangyu
core   +1 more source

Effect of sintering temperature on the dielectric, ferroelectric and energy storage properties of SnO2-doped Bi0.5(Na0.8K0.2)0.5TiO3 lead-free ceramics [PDF]

open access: yesJournal of Advanced Dielectrics, 2020
Sintered lead-free Bi0.5(Na0.8K0.2)0.5(Ti0.96Sn0.04)O3 ceramics (BNKTS) have been fabricated via a solid-state reaction. The effect of sintering temperature on the structural, morphological, dielectric, ferroelectric and energy storage properties of ...
Nguyen Truong-Tho, Le Dai Vuong
doaj   +1 more source

Direct measurement of giant electrocaloric effect in BaTiO3 multilayer thick film structure beyond theoretical prediction [PDF]

open access: yes, 2010
The electrocaloric effect of BaTiO3 multilayer thick film structure was investigated by direct measurement and theoretical calculation. The samples were prepared by the tape-casting method, which had 180 dielectric layers with an average thickness of 1.4\
Bai, Yang   +2 more
core   +2 more sources

BCHT lead-free piezoelectric ceramics preparation and ultrasonic transducer fabrication via powder injection molding using simple binder

open access: yesJournal of Materials Research and Technology, 2020
(Ba0.85Ca0.15) (Hf0.10Ti0.90)O3 (BCHT) ceramics were prepared via the powder injection molding process using paraffin as simple injection binder. Rather pure perovskite BCHT ceramics are obtained sintered at different temperatures, and complex multi ...
Can Wang   +5 more
doaj   +1 more source

Acoustic microscopy of ferroelectric ceramics

open access: yesJournal of Materials Science, 1982
Ferroelectric ceramics have been observed in an acoustic microscope. The images demonstrate the ability of the microscope to image elastic properties and to penetrate opaque layers.
Yin, Q, Ilett, C, Briggs, G
openaire   +2 more sources

Fast Switching Ferroelectric Materials for Accelerator Applications [PDF]

open access: yes, 2006
Fast switching (< 10 nsec) measurement results on the recently developed BST(M) (barium strontium titanium oxide composition with magnesium-based additions) ferroelectric materials are presented.
Dedyk, A.   +9 more
core   +2 more sources

Dielectric behaviour of (Ba0.77Ca0.23)(Ti0.98Dy0.02)O3 ceramics [PDF]

open access: yesProcessing and Application of Ceramics, 2015
In this study, BaTiO3 is modified with Ca2+ and in addition doped with Dy3+ at the B site lattice. The main idea is to search for new lead-free ferroelectric material and improve their properties.
Abdul Moquim, Manas R. Panigrahi
doaj   +1 more source

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