Results 31 to 40 of about 7,127 (284)

Piezo-generated charge mapping revealed through Direct Piezoelectric Force Microscopy

open access: yes, 2016
While piezoelectrics and ferroelectrics are playing a key role in many everyday applications, there are still a number of open questions related to the physics of those materials.
Carretero-Genevrier, Adrien   +4 more
core   +2 more sources

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

First Principles Theories of Piezoelectric Materials

open access: yes, 2007
Piezoelectrics have long been studied using parameterized models fit to experimental data, starting with the work of Devonshire in 1954. Much has been learned using such approaches, but they can also miss major phenomena if the materials properties are ...
Cohen, R. E.
core   +1 more source

Black Branes as Piezoelectrics

open access: yes, 2012
We find a realization of linear electroelasticity theory in gravitational physics by uncovering a new response coefficient of charged black branes, exhibiting their piezoelectric behavior.
J. Souriou   +3 more
core   +1 more source

Predicting morphotropic phase boundary locations and transition temperatures in Pb- and Bi-based perovskite solid solutions from crystal chemical data and first-principles calculations

open access: yes, 2005
Using data obtained from first-principles calculations, we show that the position of the morphotropic phase boundary (MPB) and transition temperature at MPB in ferroelectric perovskite solutions can be predicted with quantitative accuracy from the ...
Andrew M. Rappe   +6 more
core   +1 more source

Packaging of Macroscopic Material Payloads: Needs, Challenges, Concepts, and Future Directions

open access: yesAdvanced Engineering Materials, EarlyView.
This review introduces a unified framework that decomposes any macroscopic packaging system into the payload, packaging material, and packaging strategy and combines them into a conceptual packaging equation: packaging strategy = payload + packaging material.
Venkata S. R. Jampani, Manos Anyfantakis
wiley   +1 more source

Relaxor Phase Evolution of (Bi0.5Na0.5-xKx)TiO3 Ceramics due to K Ion Substitution and Their Corresponding Electrical Properties

open access: yesEnergies, 2020
We synthesized lead-free piezoelectric (Bi0.5Na0.5-xKx)TiO3 (BNKT) ceramics using a conventional solid-state reaction method. We have investigated the structural and electrical properties of the materials with x = 0.05 to 0.40. The X-ray diffraction (XRD)
Sam Yeon Cho   +10 more
doaj   +1 more source

Half-Heusler semiconductors as piezoelectrics

open access: yes, 2012
One of the central challenges in materials science is the design of functional and multifunctional materials, in which large responses are produced by applied fields and stresses. A rapidly developing paradigm for the rational design of such materials is
Anindya Roy   +4 more
core   +1 more source

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

The Multicomponent PZT-type Ceramics for Micromechatronic Applications

open access: yesArchives of Metallurgy and Materials, 2017
In the paper two compositions of the multi-component PZT-type ceramics admixtures by Mn4+, Sb3+, W6+, Ni2+ were presented. The ceramic powders were synthesized by the calcination of powders while their densification was carried out by free sintering ...
Bochenek D.   +6 more
doaj   +1 more source

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