Fe‐Nb Oxides: Phase Relations at 1180°C
- 1 April 1966
- journal article
- Published by Wiley in Journal of the American Ceramic Society
- Vol. 49 (4) , 177-180
- https://doi.org/10.1111/j.1151-2916.1966.tb13228.x
Abstract
Subsolidus phase relations of the oxides in the system Fe–Nb–O were experimentally determined at 1180°C, 1 atm total pressure, and variable partial pressures of oxygen. Niobium pentoxide reacts readily with either ferrous or ferric oxide at subsolidus temperatures and the following ternary compounds were synthesized: Fe4Nb2O9, FeNbO4, and FeNb2O6. It is shown that the rutile structure of NbO2 will take Fe‐Nb2O6 into solid solution and that the spinel structure of Fe3O4 will incorporate up to 7 at.% Nb.Keywords
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