Subsolidus Phase Relationships in the System Fe2O3–Al2O3–TiO2 between 1000° and 1300°C |
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Authors: | Mark I Pownceby Keri K Constanti-Carey Michael J Fisher-White |
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Affiliation: | CSIRO Minerals, Clayton South, Victoria 3169, Australia |
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Abstract: | Subsolidus phase equilibria in the system Fe2O3–Al2O3–TiO2 were investigated between 1000° and 1300°C. Quenched samples were examined using powder X-ray diffraction and electron probe microanalytical methods. The main features of the phase relations were: (a) the presence of an M3O5 solid solution series between end members Fe2TiO5 and Al2TiO5, (b) a miscibility gap along the Fe2O3–Al2O3 binary, (c) an α-M2O3( ss ) ternary solid-solution region based on mutual solubility between Fe2O3, Al2O3, and TiO2, and (d) an extensive three-phase region characterized by the assemblage M3O5+α-M2O3( ss ) + Cor( ss ). A comparison of results with previously established phase relations for the Fe2O3–Al2O3–TiO2 system shows considerable discrepancy. |
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Keywords: | phase equilibria iron/iron compounds synthesis |
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