Results 21 to 30 of about 70 (40)
Computational modeling and rational design of flexoelectric metamaterials and devices
Piezoelectricity, the two-way coupling between electric polarization and strain is the basic mechanism behind most electromechanical transduction technologies.
A. Mocci
semanticscholar +1 more source
No linealidad del efecto piezoelectrico directo d33 en cerámicas PZT
Boletín de la Sociedad Española de Cerámica y Vidrio, 2006 A new measurement method has been developed in order to analyse the non-linear behaviour of piezoelectric ceramics. Based on Berlincourt–type method, the applied stress is so high that non linear effects can be produced. Its response is analysed not only
Gorri, J. A. +5 more
doaj
Finite element computational modeling of flexoelectricity and flexo-photovoltaics
(English) This PhD focuses on the numerical modeling of flexoelectricity and flexo-photovoltaics, both at infinitesimal and finite deformations, using standard C0 Finite Element (FE) approximations.
Sergi Pérez Escudero
semanticscholar +1 more source
Optimization of flexoelectric devices
(English) This thesis develops a strategy to study the optimization on flexoelectric devices. There are nowadays many electromechanical devices , sensors, actuators and energy harvesters, that rely on the basis of the well-known piezoelectric effect, but
Juan Carlos Tarín Tomás
semanticscholar +1 more source
(English) Flexoelectricity is a two-way coupling between strain gradient and polarisation or strain and polarization-gradient. Harnessing flexoelectricity as a functional property requires gradient engineering. This is a major step from the uniform-field
Jordi Barceló Mercader
semanticscholar +1 more source
Boletín de la Sociedad Española de Cerámica y Vidrio, 1999 Bismuth-based layered compounds have been considered during the last years as interesting materials for high temperature piezoelectric applications, due to their stability and wide thermal range of the ferroelectric activity.
Damjanovic, D. +3 more
doaj
Continuum and computational modelling of surface effects in flexoelectric materials
(English) In recent years, with the rise of nanoscale technologies and consequent miniaturization of devices, the bulk flexoelectric effect has gained much interest from researchers around the world.
Mònica Dingle Palmer
semanticscholar +1 more source
Boletín de la Sociedad Española de Cerámica y Vidrio, 1999 Bi3TiNbO9 is one of the Aurivilius-type structure compounds, of general formula [Bi2O2][An-1BnO3n+1], made from pseudoperovskite (with n=2) layers alternating with Bi2O2 layers. It belongs to an ensemble of high transition temperature ferroelectrics that
Jiménez, B. +5 more
doaj
Test and fabrication of piezoresistive sensors for contact pressure measurement
Revista Facultad de Ingeniería Universidad de Antioquia, 2017 El uso de sensores de presión de contacto se ha popularizado en diferentes disciplinas de la ingeniería en los últimos años. Se utilizan en la caracterización de llantas para vehículos, rodamientos, túneles de viento, diseño de prótesis, análisis ...
Diego Andrés Valle-Lopera +3 more
doaj
No linealidad en muestras cerámicas de PZT muy delgadas
Boletín de la Sociedad Española de Cerámica y Vidrio, 1999 The development of piezoelectric sensors for high frequency requires to work with very thin samples of material. At this thick nesses, the stress concentration produces strong perturbations in the materials, and the origin oF a non linear response, which
de Frutos, J. +3 more
doaj