Processing and Application of Ceramics 2019 Volume 13, Issue 3, Pages: 269-276
https://doi.org/10.2298/PAC1903269S
Full text ( 997 KB)
Cited by


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

Stancu Viorica (National Institute of Materials Physics, Magurele-Ilfov, Romania)
Amarande Luminita (National Institute of Materials Physics, Magurele-Ilfov, Romania)
Botea Mihaela (National Institute of Materials Physics, Magurele-Ilfov, Romania)
Iuga Alin (National Institute of Materials Physics, Magurele-Ilfov, Romania)
Leonat Lucia N. (National Institute of Materials Physics, Magurele-Ilfov, Romania)
Tomulescu Aandrei G. (National Institute of Materials Physics, Magurele-Ilfov, Romania)
Cioangher Marius (National Institute of Materials Physics, Magurele-Ilfov, Romania)
Balescu Luminita M. (National Institute of Materials Physics, Magurele-Ilfov, Romania)
Pintilie Lucian (National Institute of Materials Physics, Magurele-Ilfov, Romania)

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.

Keywords: BST, PZFNT, pyroelectric characterization