Anomalous change in leakage and displacement currents after electrical poling on lead-free ferroelectric ceramics [PDF]
, 2015 We report the polarization, displacement current and leakage current behavior of a trivalent nonpolar cation Al cation substituted lead free ferroelectric NBT-BT electroceramics with tetragonal phase and P4mm space group symmetry.
Ashok Kumar +7 more
core +2 more sources
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]
Journal 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]
, 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
Journal 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
Controlling internal barrier in low loss BaTiO3 supercapacitors [PDF]
, 2009 Supercapacitor behavior has been reported in a number of oxides including reduced BaTiO3 ferroelectric ceramics. These so-called giant properties are however not easily controlled. We show here that the continuous coating of individual BaTiO3 grains by a
C. Elissalde +6 more
core +4 more sources
Acoustic microscopy of ferroelectric ceramics
Journal 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
Dielectric behaviour of (Ba0.77Ca0.23)(Ti0.98Dy0.02)O3 ceramics [PDF]
Processing 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
Elastic, dielectric and electromechanical properties of (Bi0.5Na0.5)TiO3-BaTiO3 piezoceramics at the morphotropic phase boundary region [PDF]
, 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
Eu-doped K0.5Na0.5NbO3-(Ba,Sr)TiO3: A novel lead-free luminescent ferroelectric transparent ceramic with reversible photochromism [PDF]
Journal of Advanced Dielectrics, 2019 Photochromic (PC) luminescent ferroelectric materials have aroused great interest because of their potential applications in optical information memories, optical switches and bio-imaging. However, those materials are basically opaque.
Jinfeng Lin +4 more
doaj +1 more source
Dielectric and polarization experiments in high loss dielectrics: a word of caution [PDF]
, 2008 The recent quest for improved functional materials like high permittivity dielectrics and/or multiferroics has triggered an intense wave of research. Many materials have been checked for their dielectric permittivity or their polarization state.
Lines M. E. +5 more
core +4 more sources