Results 31 to 40 of about 82,178 (282)

Enhanced torsional actuation and stress coupling in Mn-modified 0.93(Na0.5Bi0.5TiO3)-0.07BaTiO3 lead-free piezoceramic system

open access: yesScience and Technology of Advanced Materials, 2017
This paper is concerned with the development of a piezoelectric d15 shear-induced torsion actuator made of a lead-free piezoceramic material exhibiting giant piezoelectric shear stress coefficient (e15) and piezoelectric transverse shear actuation force ...
Pelin Berik   +4 more
doaj   +1 more source

An Overview on Piezoelectric Cellular Polymers: Properties and Preparation [PDF]

open access: yesعلوم و تکنولوژی پلیمر, 2020
Piezoelectricity can be described as a capability of some particular materials which convert mechanical energy to electrical and vice versa. In addition to ceramics (such as PZT) and polar polymers (PVDF and its copolymers), non-polar cellular polymers ...
Sorena Azidhak   +3 more
doaj   +1 more source

Power Control Optimization of an Underwater Piezoelectric Energy Harvester [PDF]

open access: yes, 2018
Over the past few years, it has been established that vibration energy harvesters with intentionally designed components can be used for frequency bandwidth enhancement under excitation for sufficiently high vibration amplitudes.
Aramendia Iradi, Iñigo   +4 more
core   +3 more sources

Rotator and extender ferroelectrics: Importance of the shear coefficient to the piezoelectric properties of domain-engineered crystals and ceramics

open access: yes, 2007
The importance of a high shear coefficient d15 (or d24) to the piezoelectric properties of domain-engineered and polycrystalline ferroelectrics is discussed.
Dragan Damjanovic   +5 more
core   +1 more source

Applied Study on Piezoelectric Properties of Ferroelectric Nanomaterials

open access: yesChemical Engineering Transactions, 2017
This paper presents the theoretical model d33(D) for the size dependence of the piezoelectric coefficient of the ferroelectric lead titanate PbTiO3 nano particles, where D is the diameter of nano particles.
Shuai Zhang   +4 more
doaj   +1 more source

Characterizing Effective d31 Values for PZT from the Nonlinear Oscillations of Clamped-Clamped Micro- Resonators [PDF]

open access: yes, 2013
In order to accurately predict the performance of micro-electromechanical systems which use piezoelectric material, precise knowledge of the piezoelectric coefficients is critical.
Dick, Andrew J.
core   +1 more source

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

Designing electromechanical metamaterial with full nonzero piezoelectric coefficients [PDF]

open access: yesScience Advances, 2019
We demonstrate that overall 18 nonzero effective piezoelectric coefficients of ceramics are first created by metamaterial design.
Jikun Yang   +9 more
openaire   +2 more sources

Screen‐Printed Flexible Piezoelectric Force Sensor Array with Electromagnetic Interference Shielding

open access: yesAdvanced Engineering Materials, EarlyView.
This article introduces a flexible screen‐printed piezoelectric sensor array designed for low‐frequency healthcare applications such as tactile sensing and cardiovascular monitoring. The device integrates interface electronics enabling the simultaneous acquisition of up to 128 signals, along with flexible EMI shielding that significantly reduces noise ...
Joseph Faudou   +6 more
wiley   +1 more source

Giant Effective charges and Piezoelectricity in Gapped Graphene

open access: yes, 2019
Since the first realization of reversible charge doping in graphene via field-effect devices, it has become evident how the induction a gap could further enhance its potential for technological applications.
Barone, Paolo   +4 more
core   +1 more source

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