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From a general consideration of the isomeric shift and the parameters of the X‐ray emission K‐spectra of Al and Fe in FeAl2 alloy it is concluded that the transition from Fe3Al to FeAl is accompanied by an electronic transition from the Al atom to the Fe atom with the filling of the 3d states; this process seems to be complete in the equi‐atomic alloy. Further increasing of the Al content in the alloy (transition from FeAl to FeAl2) leads to an increase in the p‐shell population in the Fe atoms.
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Nemoshkalenko et al. (1968) studied this question.
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