Abstract
Electrical conductivity was measured for fcc Bi 2O 3 solid solutions in Bi 2O 3ZrO 2Y 2O 3 system, which were made by using Y 2O 3-doped Bi 2O 3 (BY) and Y 2O 3-doped ZrO 2 (ZY). In the system with Y concentration of 20 at%, the fcc phase was formed at 0–10 mol% ZY and the oxygen-ion conductivity decreased with an increase in ZY. In system with Y 2O 3 concentration of 10 mol%, metastable fcc phase was formed at 0–14 mol% ZY and the conductivity below 600°C increased with an increase in ZY in the fcc monophase region and decreased in two-phase (BY and ZY) region. There was a correlation between lattice constant and conductivity at low temperatures. Addition of ZrO 2 was found to have some contribution to stabilization of fcc Bi 2O 3 but to be not so effective as that of Y 2O 3.
Published Version
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call