Abstract
The magnetic properties and bonding natures of the Fe- V and Fe-Cr σ phase were studied by the Mossbauer effect and saturation magnetization measurements. The Mossbauer absorption spectra of the Fe- V σ phase alloys measured at 77 K showed the hyperfine broadening due to overlapping of small internal magnetic fields. Each spectrum was decomposed into four components: The internal magnetic field on one site (I site) is nearly zero, and those on the other three sites (III, IV and V site) vary from 61 kOe to 135 kOe, 16 kOe to 65 kOe and 38 kOe to 103 kOe, respectively, with increasing iron composition. Applying the modified Pauling valence model developed by Mori and Mitsui, the obtained values of the internal fields were reasoned and, therefore, the covalent bonding nature in this structure was confirmed. In the Fe-Cr σ phase containing 46.8 at% Cr, hyperfine broadening was observed at 4.2 K and a similar analysis and discussion are made.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
