Results 11 to 20 of about 148,147 (298)

Review of Piezoelectric Properties and Power Output of PVDF and Copolymer-Based Piezoelectric Nanogenerators

Nanomaterials, 2023
The highest energy conversion efficiencies are typically shown by lead-containing piezoelectric materials, but the harmful environmental impacts of lead and its toxicity limit future use.
Neelesh Bhadwal, Ridha Ben Mrad, Kamran Behdinan   +2 more
doaj   +1 more source

Humidity resistance and recovery of sintered sodium potassium niobate-based piezoelectrics

Open Ceramics, 2023
This study delves into the crucial impact of humidity on the microstructure, phase composition, dielectric, ferroelectric, and piezoelectric properties of sintered 0.06LiNbO3–0.94(K0.5Na0.5)NbO3 lead-free piezoelectric ceramics during storage.
Gianni Ferrero, Malgorzata K. Pierchala, Konstantin Astafiev, Erling Ringgaard, Bhaskar Reddy Sudireddy, Astri Bjørnetun Haugen   +5 more
doaj   +1 more source

Temperature Dependent Piezoelectric Properties of Lead-Free (1-x)K0.6Na0.4NbO3–xBiFeO3 Ceramics [PDF]

, 2020
(1-x)K0.4Na0.6NbO3–xBiFeO3 lead-free piezoelectric ceramics were successfully prepared in a single perovskite phase using the conventional solid-state synthesis.
Feteira, Antonio, Hussain, Fayaz, Khesro, Amir, Muhammad, Raz, Reaney, Ian M., Wang, Dawei, Wang, Ge   +6 more
core   +3 more sources

On the Enhancement of Energy Storage Performance in Modified Relaxor Ferroelectric Ceramics for Pulsed Power Applications

Crystals, 2023
Relaxor-type ferroelectrics show important potential in energy storage fields due to their significantly enhanced energy performance and good temperature stability compared to normal ferroelectrics. Here, a novel, high-performance ternary composition, (0.
Hao Zhang, Zhe Zhu, Zhonghua Yao, Hua Hao, Lingyun Wang, Minghe Cao, Hanxing Liu   +6 more
doaj   +1 more source

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

Journal 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

Crystals, 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, Zhonghua Yao, Hua Hao, Minghe Cao, Hanxing Liu   +4 more
doaj   +1 more source

Perovskite lead-free piezoelectric ceramics [PDF]

Journal of Applied Physics, 2020
The ability of piezoelectric devices to convert mechanical energy to electrical energy and vice versa has inspired remarkable growth in research on piezoelectric materials. However, based on the Restriction of Hazardous Substances legislation, it is necessary to eliminate the lead from currently used piezoelectric ceramics. Together with the increasing
openaire   +1 more source

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

Journal 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, Soukaina Merselmiz, Abdelaadim Danine, Nicolas Stein, Daoud Mezzane, M’barek Amjoud, Mohammed Lahcini, Yaovi Gagou, Matjaz Spreitzer, Damjan Vengust, Zdravko Kutnjak, Mimoun El Marssi, Igor A. Luk’yanchuk, Mohamed Gouné   +13 more
doaj   +1 more source

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

Journal 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, K. P. Andryushin, A. V. Pavlenko, S. P. Kubrin, L. A. Reznichenko   +4 more
doaj   +1 more source

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

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