Results 11 to 20 of about 6,473,156 (248)

Enhanced dielectric and electrocaloric properties in lead-free rod-like BCZT ceramics

open access: yesJournal of Advanced Ceramics, 2020
Ba0.85Ca0.15Zr0.10Ti0.90O3 (BCZT) lead-free ceramics demonstrated excellent dielectric, ferroelectric, and piezoelectric properties at the morphotropic phase boundary (MPB).
Zouhair Hanani   +13 more
doaj   +2 more sources

Preparation and Characterization of Lead-Free Piezoelectric Ceramics [PDF]

open access: yesKey Engineering Materials, 2011
(K,Na)NbO3-based piezoelectric ceramics are promising candidates for practical applications of lead-free piezoelectric materials due to their excellent piezoelectric properties. In this paper, lead-free piezoelectric ceramics (K0.44Na0.52Li0.04)(Nb0.86Ta0.10Sb0.04)O3(KNL-NTS)were successfully fabricated by traditional ceramics processing.
Chen, Qiang   +6 more
openaire   +3 more sources

The synthesis and characterisation of lead-free piezoelectric ceramics [PDF]

open access: yes, 2012
With a growing awareness of the environmental and health hazards of lead, there has been renewed interest in developing lead-free alternatives to lead zirconate titanate (PZT), which currently dominates the market for piezoelectric materials. Some of the
Roberts, William Michael
core   +7 more sources

Fe-Doped Barium Lanthanum Titanate as a Competitor to Other Lead- Free Piezoelectric Ceramics [PDF]

open access: yes, 2022
Multiferroic solid solutions of Ba1−xLaxTi1−x/4O3 and iron (BLFT) were synthesized using the conventional mixed oxide method. The dependence of the piezoelectric coefficients on Fe content in BLFT ceramics was determined by the quasi-static and resonance
Kozielski, Lucjan   +9 more
core   +1 more source

Lead-free piezoelectric ceramics: Alternatives for PZT? [PDF]

open access: yesJournal of Electroceramics, 2007
Investigations in the development of lead-free piezoelectric ceramics have recently claimed comparable properties to the lead-based ferroelectric perovskites, represented by Pb(Zr,Ti)O3, or PZT. In this work, the scientific and technical impact of these materials is contrasted with the various families of “soft” and “hard” PZTs. On the scientific front,
Thomas R. Shrout, Shujun J. Zhang
openaire   +1 more source

High-Permittivity and Bias-Voltage-Insensitive (Ba,Sr,Ca)TiO3·0.03(Bi2O3·3TiO2) Ceramics with Y5U Specification

open access: yesCrystals, 2023
Class II ceramics are a material with high permittivity but low reliability of their capacitance and bias voltage due to high the temperature sensitivity of their dielectric permittivity. In this work, a BST-based (Ba0.9−xSrxCa0.1)TiO3·0.03(Bi2O3·3TiO2) (
Wei Li   +4 more
doaj   +1 more source

Dielectric spectroscopy of solid solutions based on sodium–potassium–cadmium in the temperature range (10 ÷ 900) K

open access: yesJournal of Advanced Dielectrics, 2022
This paper studies the dielectric spectra of solid solutions (SS) of the system (1 − x − y)NaNbO3–[Formula: see text]KNbO3 –[Formula: see text]CdNb2O6 [Formula: see text]= 0.075, [Formula: see text]= 0.05 ÷ 0.30 in the temperature range (10 ÷ 900) K. The
M. O. Moysa   +4 more
doaj   +1 more source

Advances in research on high-Curie temperature BiFeO3-based ceramics

open access: yes工程科学学报, 2019
Piezoelectric materials are functional materials that can realize electromechanical coupling characteristics and are widely used in electronic information, sensors, ultrasonic transducer, nondestructive testing, and communication technology. However, the
ZHU Li-feng, ZHANG Bo-ping
doaj   +1 more source

Broad-high operating temperature range and enhanced energy storage performances in lead-free ferroelectrics

open access: yesNature Communications, 2023
The immense potential of lead-free dielectric capacitors in advanced electronic components and cutting-edge pulsed power systems has driven enormous investigations and evolutions heretofore.
Weichen Zhao   +11 more
doaj   +1 more source

Lead-Free AE Sensor Based on BZT–BCT Ceramics

open access: yesSensors, 2021
In this study, an acoustic emission (AE) sensor was fabricated using lead-free Ba(Zr0.2Ti0.8)O3–0.5(Ba0.7Ca0.3)TiO3 (BZT–BCT) ceramics. The acoustic and electromechanical properties of the AE sensor were determined by the shapes of the piezoelectric ...
Dong-Jin Shin   +6 more
doaj   +1 more source

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