6533b861fe1ef96bd12c4310

RESEARCH PRODUCT

Uniaxial Pressure Effects on the Dielectric Properties of the PLZT-x/65/35 (x = 9.75 and 10) Ceramics

Andris SternbergJan SuchaniczM. LivinshKrzysztof Pytel

subject

PermittivityMaterials scienceDielectricCondensed Matter PhysicsUniaxial pressureFerroelectricityElectronic Optical and Magnetic MaterialsStress (mechanics)visual_artElectric fieldFrequency dispersionvisual_art.visual_art_mediumCeramicComposite material

description

The influence of uniaxial pressure (0-1000 bars) applied parallel to the ac electric field on the dielectric properties of PLZT-x/65/35 ceramics (x = 9.75 and 10) was investigated. The results show that the applied stress has a significant influence on the dielectric properties of PLZT ceramics. Applying uniaxial pressure leads to the reduction of the electric permittivity (ϵ) peak and the frequency dispersion. Moreover, the peak of ϵ becomes diffuse and shifts to a higher temperature with increasing pressure. The results show that applying uniaxial pressure induces similar effects as the increase in Ti−ion concentration in the PZT system. We interpreted our results based on the domain switching processes under the action of combined electromechanical loading.

https://doi.org/10.1080/00150193.2012.672034