Title
Local environments of Fe and Co in (Fe<inf>0.5</inf>Co<inf>0.5</inf>)<inf>75</inf>Si<inf>15</inf>B<inf>10</inf> mechanically alloyed
Date Issued
05 May 2009
Access level
metadata only access
Resource Type
research article
Abstract
During the milling process, local environments of Fe and Co in mechanically alloyed (Fe0.5Co0.5)75Si15B10 powders were systematically investigated using extended X-ray absorption fine structure (EXAFS) and 57Fe Mössbauer spectroscopy. While no substantial changes on the Fe-short-range order are observed in the Fe-edge EXAFS as a function of milling time, the Co-edge EXAFS data show significant modification on the Co-short-range order due to the presence of Si for the (Fe0.5Co0.5)75Si15B10 alloys milled longer than 10 h. Mössbauer data suggest that the milled end-sample (19 h sample) consists of nanograins of ordered BCC-FeCo (13%) embedded in FeCoSiB amorphous matrix phase. © 2008 Elsevier B.V. All rights reserved.
Start page
29
End page
34
Volume
475
Issue
February 1
Language
English
OCDE Knowledge area
Ingeniería de materiales
Subjects
Scopus EID
2-s2.0-63649140868
Source
Journal of Alloys and Compounds
ISSN of the container
09258388
Sponsor(s)
This work has been supported by the Brazilian Synchrotron Light Laboratory (LNLS) under proposal D04B-XAS1-1899. The authors would like to acknowledge the financial support provided by CSI-UNMSM under Projects No. 021301021–031301011, FAPERJ-Brazil (Cientista do Nosso Estado), FINEP, FAPES and Latin American Center of Physics.
Sources of information:
Directorio de Producción Científica
Scopus