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Yu. V. Baldokhin, Yu. D. Pertfiliev, L. A. Kulikov, M. A. Burnazyan

Oxidation of iron with different isotop composition

Abstract

Objective of work was finding out of features of iron oxidation with a various content of the isotopes prepared in the form of foils, bulk samples and powders. Impurity of other elements in samples of pure iron and iron (enrichment up to 95 %) practically were identical. Isotope composition of a 57Fe-containing foil: 57Fe-95,1 %; (54Fe + 56Fe) – 3,0 % and 59Fe – 1,9 %. Structural states are studied by methods of X-ray diffraction, Mőssbauer spectroscopy of conversion and Auger-electrons, as well as on absorption of Mőssbauer γ-quantums. Isotope effect at iron oxidation was obviously expressed. A possible reason of the effect is the different spin of nuclear magnetic moments of the isotopes 57Fe and 56Fe, 3/2 and 0 respectively.
Key words: iron, oxidation, messbauer spectroscopy, isotopes, electron maicroscopy.
Moscow University Chemistry Bulletin.
2015, Vol. 56, No. 2, P. 91
   

Copyright (C) Chemistry Dept., Moscow State University, 2002
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