<abstract xmlns="http://www.w3.org/1999/xhtml"> 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.</abstract>

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.

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

Nukleonika

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

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...

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

Publicado en línea: 09 jun 2017

Páginas: 109 - 115

Recibido: 27 jun 2016

Aceptado: 30 sept 2016

DOI: https://doi.org/10.1515/nuka-2017-0015

Palabras clave
Mössbauer spectroscopy, binding energy, short-range order, enthalpy of solution, enthalpy of mixing, binary alloys

© by Robert Konieczny

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

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

Publicado en línea: 09 jun 2017

Páginas: 109 - 115

Recibido: 27 jun 2016

Aceptado: 30 sept 2016

DOI: https://doi.org/10.1515/nuka-2017-0015

Palabras claveMössbauer spectroscopy, binding energy, short-range order, enthalpy of solution, enthalpy of mixing, binary alloys

© by Robert Konieczny

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

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

Palabras clave
Mössbauer spectroscopy, binding energy, short-range order, enthalpy of solution, enthalpy of mixing, binary alloys