Abstract
Three samples of Fe100−x Ni x (with x = 30, 35 and 40) were prepared by arc melting technique. The Mössbauer spectra of the three samples were collected and analyzed. The spectrum of the sample with x = 30 consists of a singlet and a sextet. The singlet component which has isomer shift (IS = −0.08 mm/s) is attributed to a superparamagnetic phase. The value of the magnetic hyperfine field associated with the sextet component, 34.0 T, is consistent with that of α-Fe-Ni alloy. In the spectra of the other samples the central line disappears. The magnetic component, used in fitting the spectrum of the sample with x = 40 has a hyperfine magnetic field B hf = 30.0 T. This component is assigned to the high-spin γ-FCC Fe-Ni phase. Two magnetic components of 16.3 T and 27.3 T are used to fit the spectrum of the sample with x = 35. The 27.3 T component is associated with the typical high-spin γ-FCC Fe-Ni phase while the 16.3 T component is associated with a γ-FCC Fe-Ni phase with magnetic relaxation.
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Lehlooh, AF.D., Mahmood, S.H. (2002). Mössbauer Spectroscopy Study of Iron Nickel Alloys. In: Cook, D.C., Hoy, G.R. (eds) Industrial Applications of the Mössbauer Effect. Springer, Dordrecht. https://doi.org/10.1007/978-94-010-0299-8_41
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DOI: https://doi.org/10.1007/978-94-010-0299-8_41
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