A.Orliukas, P.Bohac
The electrical conductivity of yttria substituted zirconia electrolytes containing glass-forming SiO2 and Al2O3 impurities has been investigated by complex impedance spectroscopy between 450-1270 K. Both fine grained tetragonal ceramics with 3mol% Y2O3 (3Y-TZP) and coarse grained cubic ceramics with 8mol% Y2O3 (8Y-FSZ) have been studied. At low temperatures, the total conductivity is suppressed by intergranular glass films. These films have a limited equilibrium thickness of 1-2 nm. A change in slope of the Arrhenius plots of the total conductivity can be observed at the characteristic temperature Tb where the macroscopic grain boundary resistivity equals the macroscopic resistivity of the grains. This behavior can be modeled by a series combination of two resistors using the 'brick-layer' model.
@article{b5c883e7-9615-46b8-ae23-237937663b25,
title={TIIE EFFECT OF IMPURITY GLASS PHASE ON E},
author={A.Orliukas and P.Bohac},
year={2026},
language={en}
}TY - JOUR TI - TIIE EFFECT OF IMPURITY GLASS PHASE ON E AU - A.Orliukas AU - P.Bohac PY - 2026 LA - en ER -
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