Results 11 to 20 of about 14,723 (260)

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

Nature 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, Diming Xu, Da Li, Max Avdeev, Hongmei Jing, Mengkang Xu, Yan Guo, Dier Shi, Tao Zhou, Wenfeng Liu, Dong Wang, Di Zhou   +11 more
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Lead-Free AE Sensor Based on BZT–BCT Ceramics

Sensors, 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, Woo-Seok Kang, Dong-Hwan Lim, Bo-Kun Koo, Min-Soo Kim, Soon-Jong Jeong, In-Sung Kim   +6 more
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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

Preparation Process, Structure, and Modification of Alkali Metal Niobate Lead-Free Piezoelectric Ceramics [PDF]

Archives of Metallurgy and Materials
Pb-based piezoelectric ceramics cause serious Pb pollution during manufacturing, Pb-free niobate-based piezoelectric ceramics have strong ferroelectricity and high Curie temperatures, rendering them more suitable for making ceramics.
Ruikun Niu, Yanni Meng, Haiqiao Wang
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