Thermodynamics of the system iron-aluminum-oxygen between 1073 K and 1573 K |
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| Authors: | F A Elrefaie W W Smeltzer |
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| Affiliation: | (1) Department of Metallurgical Engineering, Cairo University, El Giza, Egypt;(2) Department of Metallurgy and Materials Science, McMaster University, L8S 4Ml Hamilton, Ontario, Canada |
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| Abstract: | Equilibrium oxygen pressures of the univariant ternary coexistences hematite + spinel + alumina, alloy + wustite + spinel,
and alloy + spinel + alumina were determined at temperatures in the range 1123 to 1423 K using solid state electrochemical
cells. The compositions of alloys and oxide phases of this Fe-Al-0 system that equilibrated with one another at 1273, 1423,
and 1573 K were determined. These results and those from the literature are used to determine stabilities of the ternary oxide
phases as a function of oxygen pressure and composition by constructing equilibrium oxygen pressure diagrams at 1073, 1173,
and 1273 K.
Formerly with McMaster University |
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