Results 11 to 20 of about 53,830 (313)

Recent Progress in the Nanoscale Evaluation of Piezoelectric and Ferroelectric Properties via Scanning Probe Microscopy

open access: yesAdvanced Science, 2020
Piezoelectric and ferroelectric materials have garnered significant interest owing to their excellent physical properties and multiple potential applications.
Owoong Kwon   +3 more
doaj   +1 more source

Enhanced piezoelectric properties and temperature stability in KNN-based textured ceramics

open access: yesJournal of Advanced Dielectrics, 2022
Considering the advantages of high Curie temperature and environment-friendly nature of KNN piezoelectric ceramics, the limitation of weak piezoelectric response and their temperature sensitivity to applications is worth exploring. Herein, the textured (
Yan Lin   +8 more
doaj   +1 more source

Control of a multi-degree of freedom worktool for vibrations assisted forging [PDF]

open access: yes, 2014
This paper addresses the control of a tool developed to superimpose vibrations along several directions on a piece during forging. Piezoelectric actuators are used to provide the required forces and speeds.
AMBERG, Michel   +12 more
core   +1 more source

Phase-field study of crystallographic texturing in piezoelectric polycrystals

open access: yesJournal of Advanced Dielectrics, 2022
Crystallographic texturing enables the design of piezoelectric polycrystals that outperform traditional random polycrystals by exhibiting outstanding piezoelectric properties.
Meixin Wang, Tian Xia, Liwei D. Geng
doaj   +1 more source

Impedance measurements for determination of elastic and piezoelectric coefficients of films [PDF]

open access: yes, 2010
Most of those techniques used for the measurement of elastic coefficients for bulk piezoelectric ceramics are not applicable to films deposited on thick substrates because the measured properties, such as the resonant frequency, are usually dominated ...
Pardo, L.   +5 more
core   +1 more source

Defect Engineering of BCZT–based Piezoelectric Ceramics with High Piezoelectric Properties [PDF]

open access: yesJournal of Advanced Ceramics, 2021
Abstract The intrinsic conduction mechanism and optimal sintering atmosphere of (Ba0.85Ca0.15)(Zr0.1Ti0.9)O3 (BCZT) ceramics was regulated by doping Mn element in this work. By Hall and impedance analysis, the undoped BCZT ceramics exhibit a typical n–type conduction mechanism, and the electron concentration decreases with the increasing oxygen
Xinjian Wang   +8 more
openaire   +2 more sources

Current Development in Lead-Free Bi0.5(Na,K)0.5TiO3-Based Piezoelectric Materials

open access: yesAdvances in Materials Science and Engineering, 2014
The lead-free piezoelectric ceramics display good piezoelectric properties which are comparable with Pb(Zr,Ti)O3 (PZT) and these materials overcome the hazard to the environment and human health. The Bi0.5(Na,K)0.5TiO3 (BNKT) is rapidly developed because
Ngo Duc Quan   +4 more
doaj   +1 more source

Coupled piezoelectric fans with two degree of freedom motion for the application of flapping wing micro aerial vehicles [PDF]

open access: yes, 2008
Piezoelectric fans consisting of a piezoelectric layer and an elastic metal layer were prepared by epoxy bonding and a coupled flexible wing was formed by a pair of carbon fibre reinforced plastic wing spars and polymer skin attached to two ...
Lal Kummari, K.   +5 more
core   +1 more source

Effect of sintering on the piezoelectric properties and microstructure of lead free (Ba1-xCaxZr0.1Ti0.9O3) (x=0.065) ceramics [PDF]

open access: yesScience of Sintering, 2022
In this work, pellet samples of barium calcium zirconate titanate (Ba1-xCaxZr0.1Ti0.9O3, x=0.065) were prepared using solid state reaction route with double sintering. The structural and piezoelectric properties were measured.
Biswas Don, Sharma Prolay, Panwar N.S.
doaj   +1 more source

Characterisation of PZT thin film micro-actuators using a silicon micro-force sensor [PDF]

open access: yes, 2007
This paper reports on the measurements of displacement and blocking force of piezoelectric micro-cantilevers. The free displacement was studied using a surface profiler and a laser vibrometer.
Ensell, Graham   +10 more
core   +1 more source

Home - About - Disclaimer - Privacy