Phase Transformations in Stabilized ZrO2 - Fe2O3 Compositions

Data on interactions in the ZrO₂ - Fe₂O₃ system stabilized by oxides in a high-temperature form at 1750°C are obtained. Of all zirconia-based compositions, only magnesium-zirconium cubic solid solution enters into an active reaction with Fe₂O₃ to yield MgFe₂O₄. The solid solutions formed by ZrO₂ with oxides of yttrium, neodymium, and calcium resist degradation by attack from Fe₂O₃; part of iron oxide undergoes dissolution in cubic ZrO₂. __________ Translated from Novye Ogneupory, No. 9, pp. 40 – 43, September, 2005.