Entity

Time filter

Source Type


Barbashov V.,Donetsk Physics Technology Institute | Nesova E.,Donetsk Physics Technology Institute | Akimov G.,Donetsk Physics Technology Institute
Physica Status Solidi (C) Current Topics in Solid State Physics | Year: 2013

Grain size effect on the phase composition of scandia stabilized zirconia ceramics was studied experimentally. It was established using X-ray phase analysis that the grain size decrease from 16 to 0.6 μm results in the tetragonal-to-rhombohedral phase transition. It was shown that heating of the fine-grained material up to the 800 K in a weak electric field allows forming anisotropic behaviour of the ceramic electrolyte. The induced anisotropy is unambiguously reflected in temperature dependence of ionic conductivity. © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. Source


Barbashov V.,Donetsk Physics Technology Institute | Nesova E.,Donetsk Physics Technology Institute | Pismenova N.,Donetsk Physics Technology Institute | Radionova O.,Donetsk Physics Technology Institute
Physica Status Solidi (A) Applications and Materials Science | Year: 2012

Evidence of current induced structural and conduction anisotropy was experimentally established in scandia-stabilized zirconia ceramics. It was found that these effects are observed only when the material is in the rhombohedral phase. It was shown using conductivity measurements and X-ray phase analysis that anisotropic behavior of polycrystalline ZrO 2-Sc 2O 3 ceramics is induced by a low-amplitude alternating current in the temperature range corresponding to a rhombohedral-to-cubic phase transition. Copyright © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. Source


Nesova E.,Donetsk Physics Technology Institute | Barbashov V.,Donetsk Physics Technology Institute | Jebel A.,Donetsk Physics Technology Institute | Komysa Y.,Donetsk Physics Technology Institute
International Conference on Oxide Materials for Electronic Engineering - Fabrication, Properties and Applications, OMEE 2014 - Book of Conference Proceedings | Year: 2014

Effect of Bi2O3 doping and cold isostatic pressing (CIP) on the ionic conductivity of the ceramics ZrO2 + 10 mol.% Sc2O3 + 1 mol. % CeO2 was studied. It was established that sintering the Bi2O3 doped ceramic specimens uses the lower temperatures after cold isostatic pressing (value of the sintering temperature was less than 400 ° C). CIP and sintering regimes (0.6 GPa ; 1100 ° C at 70 h) of specimens yielded high conductive and dense ceramics (0.028 S cm -1 at 800 ° C). © 2014 IEEE. Source

Discover hidden collaborations