Results 241 to 250 of about 82,178 (282)

AlScN Thin Films for the Piezoelectric Transduction of Suspended Microchannel Resonators. [PDF]

Sensors (Basel)
Abdelaal Y, Liffredo M, Villanueva LG.
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Study on the nonlinear characteristic of a longitudinal piezoelectric ultrasound transducer with stepped horn. [PDF]

Ultrason Sonochem
Yang Z, Xu L, Zhang H, Gong T, Liang Z, Yao L.   +5 more
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High-Temperature Piezoelectrics with Large Piezoelectric Coefficients

Journal of Electronic Materials, 2014
High-temperature piezoelectric materials are of interest for sensors and actuators in various industrial applications in which the devices are exposed to high temperature. A lot of research has been conducted in this area to bring forth a suitable piezoelectric material having a high Curie temperature for suitable usage at a high temperature with good ...
K. Shinekumar, Soma Dutta
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Architected Piezoelectric Metamaterial With Designable Full Nonzero Piezoelectric Coefficients

Journal of Applied Mechanics, 2023
Abstract Piezoelectric metamaterials have received extensive attention in the fields of robotics, nondestructive testing, energy harvesting, etc. Natural piezoelectric ceramics possess only five nonzero piezoelectric coefficients due to the crystal symmetry of ∞mm, which has limited the development of related devices.
Bo Yu, Yingzhuo Lun, Zewei Hou, Jiawang Hong   +3 more
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Piezoelectric unimorph microcantilevers for measuring direct and converse piezoelectric coefficients

Journal of Applied Physics, 2021
In this study, we propose a new piezoelectric measurement method using unimorph microcantilevers to evaluate precise values of direct and converse piezoelectric coefficients for piezoelectric microelectromechanical system applications. We fabricated unimorph microcantilevers comprising 3-μm-thick polycrystalline Pb(Zr,Ti)O3 (PZT) thin films on a 20-μm ...
Genki Jikyo, Kouta Onishi, Takumi Nishikado, Isaku Kanno, Kensuke Kanda   +4 more
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Influence of Multiple Piezoelectric Effects on Piezoelectric Coefficient of Piezoelectric Ceramics

Applied Mechanics and Materials, 2011
In this paper, theoretical analysis is performed on the influence of multiple piezoelectric effects on piezoelectric coefficients. And a kind of classical piezoelectric ceramics was adopted to conduct the experimental validation. The experimental results of short-circuit boundary condition are obtained by the methods that a capacitor whose capacitance ...
Zhong Hua Zhang, Guang Ming Cheng, Jun Wu Kan, Ping Zeng, Jian Ming Wen   +4 more
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Piezoelectric coefficients and spontaneous polarization of ScAlN

Journal of Physics: Condensed Matter, 2015
We present a computational study of spontaneous polarization and piezoelectricity in Sc(x)Al(1-x)N alloys in the compositional range from x = 0 to x = 0.5, obtained in the context of density functional theory and the Berry-phase theory of electric polarization using large periodic supercells.
Caro, Miguel, Zhang, Siyuan, Riekkinen, Tommi, Ylilammi, Markku, Moram, Michelle, Lopez-Acevedo, Olga, Molarius, Jyrki, Laurila, Tomi   +7 more
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Identification of nonlinear piezoelectric coefficients

Journal of Applied Physics, 2018
An identification scheme that exploits the vibration response and generated voltage of an energy harvester is proposed to estimate parameters representing nonlinear piezoelectric coefficients. We develop the governing equations of a cantilever beam with tip mass and a piezoelectric layer using the generalized Hamilton's principle and by accounting for ...
Vamsi C. Meesala, Muhammad R. Hajj
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Piezoelectric coefficient measurement of piezoelectric thin films: an overview

Materials Chemistry and Physics, 2002
An overview on the state-of-art piezoelectric measurements of thin films is given. The principles and advantages/disadvantages of the conventional techniques are discussed for piezoelectric applications. Concerning a direct measurement of piezoelectric coefficient and taking into account of 1.0-100.0 mum in film thickness, a displacement of 0.1 nm ...
J.-M. Liu, B. Pan, H.L.W. Chan, S.N. Zhu, Y.Y. Zhu, Z.G. Liu   +5 more
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