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Structural and magnetic properties of the Fe3−xMnxAl system

1976; Elsevier BV; Volume: 17; Issue: 4 Linguagem: Inglês

10.1016/s0022-4596(76)80007-2

1095-726X

A. S. Ilyushin, W.E. Wallace,

Metallic Glasses and Amorphous Alloys

Structures, bulk magnetic properties and Mössbauer spectra for Fe3−xMnxAl ternaries have been determined. For samples quenched from 750°C the DO3 structure is found for x=0 to 0.75, the β-Mn structure from 1.25 to 3.00 and a two phase system between x=0.75 and 1.25. The Curie temperature decreases as Fe in Fe3Al is replaced by Mn, indicating a weakening of ferromagnetic exchange. The Mössbauer spectrum at room temperature for x=0.75 is a singlet. The spectra in the ternaries having the β-Mn structure indicate two types of Fe. The intensities in the Mössbauer pattern suggest that Fe is preferentially occupying one of the sites in the β-Mn structure.