Scandium doped Strontium Titanate Ceramics: Structure, Microstructure, and Dielectric Properties
authors Tkach, A; Vilarinho, PM
nationality International
journal BOLETIN DE LA SOCIEDAD ESPANOLA DE CERAMICA Y VIDRIO
author keywords Dopants; Microstructure; Electric/Dielectric properties; Insulators; Strontium Titanate; Ceramics
keywords SRTIO3
abstract Sc-doped strontium titanate (ST) ceramics were synthesised by solid state reaction, according to the composition Sr(1-1.5x)Sc(x)TiO(3) with x = 0-0.01. Structural properties and microstructure development was examined by XRD and SEM. The dielectric properties were evaluated as a function of the temperature and frequency in the radio frequency range. Lattice parameter, density and grain size, were found to decrease slightly with increasing Sc content. The dielectric permittivity and losses decrease also. Sc-doping has only a weak effect on the quantum paraelectric behaviour of ST and no dielectric anomaly was observed, what is probably related to the limited solubility of Sc on the Sr site of the perovskite lattice of ST.
publisher SOC ESPANOLA CERAMICA VIDRIO
issn 0366-3175
year published 2008
volume 47
issue 4
beginning page 238
ending page 241
web of science category Materials Science, Ceramics
subject category Materials Science
unique article identifier WOS:000261971600011
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journal analysis (jcr 2019):
journal impact factor 2.517
5 year journal impact factor 1.618
category normalized journal impact factor percentile 73.214
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