| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1600750 | Intermetallics | 2011 | 8 Pages |
Abstract
The uranium Laves phase UFe2 was prepared by ultrafast cooling, which allows to incorporate excessive Fe of about 0.3 Fe/f.u. into the nanocrystalline Laves phase structure. 57Fe Mössbauer spectroscopy reveals that such Fe atoms occupy the U sites. Stronger magnetic hyperfine field points to larger Fe moments of such antistructure Fe. Higher Fe excess leads to its segregation in the form of α-Fe. The Curie temperature of the UFe2+x phase increases to the limit value 230–240 K.
Keywords
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Physical Sciences and Engineering
Materials Science
Metals and Alloys
Authors
L. Havela, K. Miliyanchuk, A.P. Gonçalves, J.C. Waerenborgh, L.C.J. Pereira, P. Gaczynski, E.B. Lopes, J. Pešička,