An Enthalpy of Solution of Silicon in Iron Studied by ^{57}Fe Mössbauer Spectroscopy

• Authors: R. Idczak , R. Konieczny , J. Chojcan
• Languages of publication: EN

Abstracts

EN

The room temperature Mössbauer spectra of ^{57}Fe were measured for Fe_{1-x}Si_x solid solutions with x in the range 0.01 ≤ x ≤ 0.05. The obtained data were analysed in terms of the binding energy E_{b} between two silicon atoms in the studied materials using the extended Hrynkiewicz-Królas idea. The extrapolated value of E_{b} for x=0 was used to computation of an enthalpy of solution H_{FeSi} of Si in α-Fe matrix. It was found that the H_{FeSi} value is negative or Si atoms interact repulsively. The result was compared with corresponding values given in the literature which were derived from experimental calorimetric data as well as with the value resulting from the cellular atomic model of alloys by Miedema.

Keywords

EN

76.80.+y; 75.50.Bb; 82.60.Cx; 82.60.Lf

Discipline

• 82.60.Cx: Enthalpies of combustion, reaction, and formation
• 76.80.+y: Mössbauer effect; other γ-ray spectroscopy(see also 33.45.+x Mössbauer spectra—in atomic and molecular physics; for biophysical applications, see 87.64.kx; for chemical analysis applications, see 82.80.Ej)
• 82.60.Lf: Thermodynamics of solutions
• 75.50.Bb: Fe and its alloys

• Journal: Acta Physica Polonica A
• Year: 2016
• Volume: 129
• Issue: 3
• Pages: 367-370

Dates

published

2016-03

received

2015-09-30

(unknown)

2016-02-16

Contributors

author

R. Idczak

• Institute of Experimental Physics, University of Wrocław, pl. M. Borna 9, 50-204 Wrocław, Poland

author

R. Konieczny

• Institute of Experimental Physics, University of Wrocław, pl. M. Borna 9, 50-204 Wrocław, Poland

author

J. Chojcan

• Institute of Experimental Physics, University of Wrocław, pl. M. Borna 9, 50-204 Wrocław, Poland

References

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Identifiers

DOI

10.12693/APhysPolA.129.367