Structural and Magnetic Properties of Fe3-xTixSn Disordered Alloys
K. Brzakalik
Institute of Materials Sciences, University of Silesia, Bankowa 12, 40-007 Katowice, Poland
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Received: 08 06 2008
A series of Fe3-xTixSn disordered alloys (where x = 0, 0.25, 0.5, and 0.75) obtained by arc-melting were studied. Directly after the melting all samples were mechanically crashed and in that form examined by the X-ray diffraction and Mössbauer effect methods. In Fe3-xTixSn alloy with x = 0 three phases exist: FeSn (B35), FeSn2 (C16) and Fe(Sn) (A2). The contributions of these phases decrease very fast in aid of ternary Fe-Ti-Sn alloys with the B2 and D03/L21 types of structure, as Ti atoms concentration increases. It was shown that these ternary alloys consist of four distinct Fe-Ti-Sn phases with contributions depending on the value of the x parameter. The value of hyperfine magnetic field (Bhf) parameter at the Fe nuclei is equal to about 110 kG for FeSn and FeSn2 phases. However in alloys with A2, B2 and D03/L21 type of structure this value changes from 0 kG to 335 kG and can be considered (in the first approximation) as a function of Fe atoms number in the nearest neighborhood.
DOI: 10.12693/APhysPolA.114.1529
PACS numbers: 61.05.cp, 75.50.Bb, 76.80.+y