Thermodynamic properties of dilute Co-Fe solid solutions studied by 57Fe Mössbauer spectroscopy

• Autorzy: Konieczny R. , Idczak R.

Identyfikatory

DOI

10.1515/nuka-2017-0015

• Konferencja: All-Polish Seminar on Mössbauer Spectroscopy OSSM 2016 (11th ; 19-22 June 2016 ; Radom-Turno, Poland)
• Języki publikacji: EN

Abstrakty

EN

The Co1–xFex alloys where x ranges from 0.01 to 0.06 were measured at room temperature using transmission Mössbauer spectroscopy (TMS). The analysis of the obtained data allowed the determination of the short-range order (SRO), the binding energy Eb between two iron atoms in the studied materials using the extended Hrynkiewicz-Królas idea and the enthalpy of solution HCo-Fe of Fe in Co. The results showed that the Fe atoms dissolved in a Co matrix interact repulsively and the estimated value of HCo-Fe = –0.166(33) eV/atom. Finally, values of the enthalpy of solution were used to predict the enthalpy of mixing for the Co-Fe system. These findings were compared with corresponding data given in the literature, which were derived from calorimetric experiments and from the cellular atomic model of alloys described by Miedema.

Słowa kluczowe

EN

Mössbauer spectroscopy; binding energy; short-range order; enthalpy of solution; enthalpy of mixing; binary alloys

• Wydawca: Institute of Nuclear Chemistry and Technology
• Czasopismo: Nukleonika
• Rocznik: 2017
• Tom: Vol. 62, No. 2
• Strony: 109--115
• Opis fizyczny: Bibliogr. 21 poz., rys.

Twórcy

autor

Konieczny R.

• Institute of Experimental Physics, University of Wroclaw, 9 M. Borna Sq., 50-204 Wrocław, Poland, Tel.: [phone], Fax: [phone]

autor

Idczak R.

• Institute of Experimental Physics, University of Wroclaw, 9 M. Borna Sq., 50-204 Wrocław, Poland, Tel.: [phone], Fax: [phone]

Bibliografia

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Uwagi

PL

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę (zadania 2017).