Results 31 to 40 of about 142,158 (290)

Research and fabrication of bimetallic plate transducer based on finite element analysis

open access: yesMaterials & Design
By enhancing the type 1–3 piezoelectric composite material, a highly sensitive hydroacoustic transducer sensitive element structure is suggested for uses in sonar systems, such as small target identification and fine imaging.
Yudan Lan   +5 more
doaj   +1 more source

THE ROLE OF THE MARKETING COMMUNICATION IN THE ENTERING OF UKRAINIAN ENTERPRISES IN THE WORLD MARKET [PDF]

open access: yes, 2008
The dielectric, piezoelectric, and acoustic properties of PMN-0.32PT (Pb(Mg(1/3)Nb(2/3)) O(3)-PbTiO(3)) single crystals were investigated as a function of sample thickness ranging from 120 to 30 μm in order to enlighten the origin of property degradation
Alagha, Shima   +5 more
core   +1 more source

Elastic, dielectric and piezoelectric anomalies and Raman spectroscopy of 0.5Ba(Ti0.8Zr0.2)O3-0.5(Ba0.7Ca0.3)TiO3

open access: yes, 2012
The solid solution 0.5Ba(Ti0.8Zr0.2)O3-0.5(Ba0.7Ca0.3)TiO3 (BCZT) is a promising lead-free piezoelectric material with exceptionally high piezoelectric coefficients. The strong response is related to structural instabilities close to ambient temperature.
Alberto Biancoli   +5 more
core   +1 more source

Piezoelectricity of Cholesteric Elastomers

open access: yes, 1994
We consider theoretically the properties of piezoelectricity in cholesteric elastomers. We deduce using symmetry considerations the piezoelectric contributions to the free energy in the context of a coarse-grained description of the material. In contrast
Meyer, Robert B., Pelcovits, Robert A.
core   +1 more source

Review on Innovative Piezoelectric Materials for Mechanical Energy Harvesting

open access: yesEnergies, 2022
The huge number of electronic devices called the Internet of Things requires miniaturized, autonomous and ecologically sustainable power sources. A viable way to power these devices is by converting mechanical energy into electrical through electro ...
Giacomo Clementi   +9 more
doaj   +1 more source

Piezoelectric wind power harnessing – an overview [PDF]

open access: yes, 2011
As fossil energy resources deplete, wind energy gains ever more importance. Recently, piezoelectric energy harvesting methods are emerging with the advancements in piezoelectric materials and its storage elements.
Aksit, Mahmut Faruk   +5 more
core  

Performance of transducers with segmented piezoelectric stacks using materials with high electromechanical coupling coefficient

open access: yes, 2013
Underwater acoustic transducers often include a stack of thickness polarized piezoelectric material pieces of alternating polarity interspersed with electrodes, bonded together and electrically connected in parallel.
Markley, Douglas C.   +2 more
core   +1 more source

Piezoelectric mimicry of flexoelectricity [PDF]

open access: yes, 2018
The origin of "giant" flexoelectricity, orders of magnitude larger than theoretically predicted, yet frequently observed, is under intense scrutiny. There is mounting evidence correlating giant flexoelectric-like effects with parasitic piezoelectricity ...
Abdollahi, Amir   +2 more
core   +4 more sources

Air‐Pressure–Actuated Vibroacoustic Metamaterial With Tunable Bandgap: Design, Modeling, and Characterization

open access: yesAdvanced Engineering Materials, EarlyView.
This article presents the design, modeling, and characterization of air‐pressure–actuated programmable vibroacoustic metamaterials (PVAMM). The study focuses on leveraging air pressure to dynamically tune resonance frequencies for effective noise attenuation.
William Kaal   +2 more
wiley   +1 more source

Powder Optimization Strategies for Binder Jetting Printing of BaTiO3 and Ba0,6Sr0,4TiO3 Ceramics

open access: yesAdvanced Engineering Materials, EarlyView.
Powder optimization is investigated to enable binder jetting of BaTiO3 and Ba0.6Sr0.4TiO3 ferroelectric ceramics. The antagonistic relationship between flowability and binder compatibility is addressed through binder impregnation of granulated powders and fumed silica addition to fine powders.
Fanny Pruvost   +4 more
wiley   +1 more source

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