Processing, basic characterization and standard dielectric measurements on PLZT x/65/35 (4 ≤ x ≤ 11) ceramics

The influence of external stress (0-800 bar) on the dielectric properties of lead lanthanum zirconium titanate (PLZT) x/65/35 (4 ≤ x ≤ 11) ceramics was investigated. Applying uniaxial pressure leads to a change in the peak intensity of the electric permittivity (ϵ), in its frequency dispersion as we...

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Bibliographic Details
Published in:Phase transitions 2014-11, Vol.87 (10-11), p.1181-1190
Main Authors: Pytel, Krzysztof, Suchanicz, Jan, Livinsh, Maris, Sternberg, Andris
Format: Article
Language:English
Subjects:
Ceramics
Dielectric properties
Dielectrics
Dispersion
Dispersions
ferroelectrics
Heating
Inorganic chemistry
Lead zirconate titanates
Nanostructure
PLZT ceramics
Pressure
Stresses
uniaxial pressure
Zirconium titanates
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Summary:The influence of external stress (0-800 bar) on the dielectric properties of lead lanthanum zirconium titanate (PLZT) x/65/35 (4 ≤ x ≤ 11) ceramics was investigated. Applying uniaxial pressure leads to a change in the peak intensity of the electric permittivity (ϵ), in its frequency dispersion as well as in the dielectric hysteresis. The peak intensity of ϵ becomes broader and shifts to lower temperatures for PLZT x/65/35 with x = 4, 7, 9.75 and 11, with increasing pressure, on heating. It was concluded that applying uniaxial pressure induces an increase of T m , and thus has a similar effect as the increase of the Ti ion concentration in the lead zirconium titanate (PZT) system. Results based on nanoregion switching processes under combined electromechanical loading were interpreted. Studies clearly showed that applied stress has a significant influence on the dielectric properties of PLZT ceramics.
ISSN:0141-1594
1029-0338
DOI:10.1080/01411594.2014.953520