Fe site populations in Sm 2(Co, Fe) 17 and Sm(Co, Fe, Cu, Zr) 8.35 alloys
Abstract
We have investigated the crystallographic site distribution of Fe atoms in Sm 2(Co 1-xFe x) 17 and Sm(Co 0.90-vFe vCu 0.08Zr 0.02) 8.35 alloys by means of Mössbauer spectroscopy. Fe shows a strong preference for 2c (dumbbell) sites in the former system, but in the multicomponent alloys such preference is reduced. This result gives support to a model proposed by Ray, according to which Zr-vacancy pairs displace FeFe dumbbell pairs during the solutionizing heat treatment of these permanent-magnet materials.
- Publication:
-
Journal of Magnetism and Magnetic Materials
- Pub Date:
- October 1990
- DOI:
- 10.1016/0304-8853(90)90736-A
- Bibcode:
- 1990JMMM...89L.270N