ACTA

Mössbauer and Magnetic Study of Fe+Vitroperm+Plastic System

K. Brzózka^a, P. Kollár^b, T. Szumiata^a, P. Sovak^b, J. Füzer^b, M. Fáberová^c, R. Bureš^c, B.Górka^a, M. Gawroński^a and M. Gzik-Szumiata^a
^aDepartment of Physics, University of Technology and Humanities, Krasickiego 54, 26-600 Radom, Poland
^bInstitute of Physics, Faculty of Sciences, P. J. Šafárik University, Park Angelinum 9, 041 54 Košice, Slovakia
^cInstitute of Materials Research, Slovak Academy of Sciences, Watsonova 47, 040 01 Košice, Slovakia

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Phase composition and magnetization curves of the soft magnetic composites, fabricated by compaction of several kinds of powders mixed in various proportions, have been investigated by means of conversion: electron Mössbauer spectroscopy and an alternating gradient force magnetometry. The results point to significant quantity of iron oxides - hematite and magnetite - at the surface of the samples. After the rubbing of thin surface layer, the relative content of oxides was distinctly reduced. Magnetic measurements revealed very similar characteristics of hysteresis curves for all the investigated materials.

DOI: 10.12693/APhysPolA.126.148
PACS numbers: 75.50.Bb, 68.35.bd, 76.80.+y, 75.60.-d, 72.80.Tm