Comparison between dielectric and pyroelectric properties of PZFNT and BST type ceramics | Zendy

Viorica Stancu | Zendy; L. Amarande | Zendy; Mihaela Botea | Zendy; A. Iuga | Zendy; Lucia Leonat | Zendy; Andrei Gabriel Tomulescu | Zendy; M. Cioangher | Zendy; Liliana Marinela Balescu | Zendy; L. Pintilie | Zendy

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Comparison between dielectric and pyroelectric properties of PZFNT and BST type ceramics

Author(s) -

Viorica Stancu,

L. Amarande,

Mihaela Botea,

A. Iuga,

Lucia Leonat,

Andrei Gabriel Tomulescu,

M. Cioangher,

Liliana Marinela Balescu,

L. Pintilie

Publication year - 2019

Publication title -

processing and application of ceramics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.326

H-Index - 15

eISSN - 2406-1034

pISSN - 1820-6131

DOI - 10.2298/pac1903269s

Subject(s) - pyroelectricity , materials science , pyroelectric crystal , ceramic , dielectric , electrocaloric effect , pellets , polarization (electrochemistry) , ferroelectricity , laser , ferroelectric ceramics , optoelectronics , composite material , optics , chemistry , physics

Ba0.75Sr0.25TiO3 (BST) and PbZr0.68Fe0.14Nb0.14Ti0.04O3 (PZFNT) ceramic pellets were obtained by ceramic technology and their structural, ferroelectric and pyroelectric properties were investigated. The relative density of BST and PZFNT is about 93% and 90%, respectively, with an average grain size of 102 μm and 6.45 μm. Both materials have similar room temperature dielectric constants (~2000), but PZFNT shows higher remnant polarization (~15μC/cm2) and better pyroelectric properties (~1.69•10−4 C/m2K), which recommend it for pyroelectric detectors, infrared radiation- and laser pulse energy-meters.

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