Skip navigation

Please use this identifier to cite or link to this item:
Title: Fabrication and dielectric properties of modified calcium (Pb0.75Ba0.25)(Zr0.7Ti0.3)O3 ceramics
Authors: Machnik, Zbigniew
Bochenek, Dariusz
Wodecka-Duś, Beata
Adamczyk, Małgorzata
Osińska, Katarzyna
Keywords: ferroelectricity; ceramic materials
Issue Date: 2016
Citation: European Physical Journal B, Vol. 89, no. 2 (2016), art. no. 34
Abstract: The aim of the present work is to report investigations concerning the influence of homovalent modificators on relaxor properties of PBZT 25/70/30 ceramics. The selection of the proper homovalent additive was very important. Literature reports as well as data taken from the periodic table indicated, that calcium ions substitute themselves for lead ions with high likelihood of occurrence. The investigations showed that the substitution significantly changed the microstructure of ceramics – with grains of calcium modified ceramics decreasing and density increasing. The XRD measurements indicate that the pure PBZT ceramics as well as calcium dopant were characterised by tetragonal structure with space group I4/mmm. Addition of calcium leads to a slight decrease in the lattice constant and crystal structure. The calcium modification also changes the dielectric properties. The temperature characteristic of the dielectric constant achieved a broadened maximum at temperature Tm, which decreases with increasing Ca content. The properties typical for ferroelectric relaxors weaken with increasing calcium dopant.
DOI: 10.1140/epjb/e2015-60532-4
ISSN: 1434-6028
Appears in Collections:Artykuły (WNŚiT)

Files in This Item:
File Description SizeFormat 
Machnik_Fabrication_and_dielectric_properties_of_modified_calcium.pdf1,32 MBAdobe PDFView/Open
Show full item record

Uznanie Autorstwa 3.0 Polska Creative Commons License Creative Commons