Mechanical alloying of Fe and Zn: phase analysis and Mössbauer studies

Crystalline Fe 25Zn 75 powder alloys ( Γ 1 phase) have been prepared by mechanical alloying of pure elemental powders. A crystalline Fe 27.9Zn 72.1 alloy (Γ phase) was obtained after adequate annealing. The Mössbauer spectra at room temperature displayed three doublets before annealing, correspondin...

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Published inJournal of alloys and compounds Vol. 234; no. 1; pp. 43 - 47
Main Authors de Lima, J.C., Borba, E.C., Paduani, C., dos Santos, V.H.F., Grandi, T.A., Rechenberg, H.R., Denicoló, I., Elmassalami, M., Barbosa, A.F.
Format Journal Article
LanguageEnglish
Published Elsevier B.V 01.02.1996
Subjects
Mechanical alloying
Mössbauer spectroscopy
Phase analysis
Zn
Phase analysis
Mechanical alloying
Mössbauer spectroscopy
Fe
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Summary:Crystalline Fe 25Zn 75 powder alloys ( Γ 1 phase) have been prepared by mechanical alloying of pure elemental powders. A crystalline Fe 27.9Zn 72.1 alloy (Γ phase) was obtained after adequate annealing. The Mössbauer spectra at room temperature displayed three doublets before annealing, corresponding to iron atoms located at the outer tetrahedral, inner tetrahedral and octahedral sites in the unit cell of Fe 25Zn 75. For the annealed sample, two doublets associated with iron atoms located at two tetrahedral inequivalent sites in the unit cell of Fe 27.9Zn 72.1 were observed. This Γ 1-to-Γ-phase transition was confirmed by X-ray diffraction and Mössbauer spectroscopy measurements.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0925-8388
1873-4669
DOI:10.1016/0925-8388(95)02084-5