A Dilute-Limit Heat of Solution of Aluminium in Iron Studied with 57Fe Mössbauer Spectroscopy
J. Chojcan and A. Ostrasz
Institute of Experimental Physics, University of Wrocław, pl. M. Borna 9, PL-50-204 Wrocław, Poland
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Received: 08 06 2008
The room temperature 57Fe Mössbauer spectra for binary iron-based solid solutions Fe1-xAlx, with x in the range 0.03 ≤ x ≤ 0.05, were analysed in terms of binding energy Eb between two Al atoms in the Fe-Al system. The extrapolated values of Eb for x= 0 were used for computation of the dilute-limit heat of solution of aluminium in iron. The results were compared with that resulting from the Miedema's model of alloys as well as those derived from the heat of formation of the system, obtained with both calorimetric measurements and theoretical calculations. The comparison shows that our Mössbauer spectroscopy findings are in good agreement with all the other results mentioned above.
DOI: 10.12693/APhysPolA.114.1573
PACS numbers: 76.80.+y, 82.60.Lf