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Article Dans Une Revue Intermetallics Année : 2013

A Mössbauer investigation of the formation of the Ni3Fe phase by high energy ball milling and subsequent annealing

Olivier Isnard
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Jean Juraszek
Viorel Pop
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Résumé

NieFe alloys obtained by high energy ball milling of pure Ni and Fe powders were investigated by 57Fe Mössbauer spectrometry. The Mössbauer spectra of the as-milled powders were fitted with two magnetic contributions, corresponding to the a-Fe and NieFe phases. As the milling time increases, the relative intensity of the a-Fe contribution decreases while that of the NieFe phase increases. After about 10 h of milling, a NieFe phase with a composition close to Ni3Fe is obtained and no more a-Fe phase is present in the powder. The contribution of the NieFe phase is carefully investigated, and the value of the hyperfine field shows that Ni3Fe is formed in a disordered state. The influence of an annealing treatment at 330 C is discussed and compared to the results of both X-ray diffraction analysis and magnetic measurements previously obtained.

Dates et versions

hal-01002464 , version 1 (06-06-2014)

Identifiants

Citer

Jean Marie Le Breton, Olivier Isnard, Jean Juraszek, Viorel Pop, Ionel Chicinas. A Mössbauer investigation of the formation of the Ni3Fe phase by high energy ball milling and subsequent annealing. Intermetallics, 2013, 35 (128), pp.128-134. ⟨10.1016/j.intermet.2012.10.001⟩. ⟨hal-01002464⟩
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