[Zurück]

A.S. Lileev, Yu.D. Yagodkin, M. Reissner, W. Steiner:
"Mössbauer and X-ray diffraction investigation of nanocrystalline Fe-O alloys";
Journal of Magnetism and Magnetic Materials, 258-259 (2003), S. 504 - 506.

Mössbauer and X-ray diffraction investigation of nanocrystalline Fe?O alloys

A. S. Lileeva, Yu. D. Yagodkin [Corresponding Author Contact Information] , [E-mail The Corresponding Author] , a, M. Reissnerb and W. Steinerb

a Moscow State Institute of Steel and Alloys, Leninsky Prospekt 4, 119991, Moscow, Russia
b Vienna University of Technology, Wiedner Hauptstra [small beta, Greek] e 8-10, A-1040, Vienna, Austria

Available online 6 March 2003.


Abstract

X-ray and Mössbauer investigations were carried out on powders produced by milling of Fe2O3+ [small alpha, Greek] -Fe mixtures in a high-energy ball mill and subsequent low-temperature annealing. The nanocrystalline composite alloys obtained as a result of the milling, contained FeO and [small alpha, Greek] -Fe with an average crystallite size of 15?20 nm as well as an amorphous phase. Alloys subjected to subsequent annealing contained, however, only [small alpha, Greek] -Fe+Fe3O4 with an average crystallite size of about 20 nm. Unlike the starting materials the produced powders had properties, which are characteristic for hard magnetic materials.

http://aleph.ub.tuwien.ac.at/F?base=tuw01&func=find-c&ccl_term=AC04405836

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