Abstract
Conversion electron Mössbauer spectroscopy was used to study the thin films obtained by co-precipitation of coatings from two sources: magnetron sputtering of a metal tantalum target and thermovacuum evaporation of metallic iron enriched in the 57Fe isotope. The films of required thickness were formed by alternating exposure to a magnetron-generated tantalum flow and a flow of iron vapor from a thermal evaporator. The analysis of the Mössbauer spectra showed that co-precipitation of iron atoms transferred to the vapor state by heating and tantalum atoms from the magnetron plasma forms a solid solution of iron in tantalum. The film structure is mainly a metastable β-modification of tantalum of the tetragonal crystal system. Annealing of the samples at 1100°С led to the transition of the β-tantalum structure into the body-centered cubic structure of the α-modification of tantalum. It is found that magnetron sputtering creates favorable conditions for formation of solid solutions of two metals at temperatures far from the melting temperatures of their components.
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Original Russian Text © A.N. Ozernoy, M.F. Vereshchak, I.A. Manakova, Zh.K. Tleubergenov, K.A. Bedelbekova, 2017, published in Yadernaya Fizika i Inzhiniring, 2017, Vol. 8, No. 5, pp. 492–496.
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Ozernoy, A.N., Vereshchak, M.F., Manakova, I.A. et al. Nuclear Gamma-Resonance Spectroscopy in Study of Nanoscale Composites. Phys. Atom. Nuclei 81, 1484–1487 (2018). https://doi.org/10.1134/S1063778818100125
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DOI: https://doi.org/10.1134/S1063778818100125