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Influence of structural transformations on functional properties of Fe75Ni2Si8B13C2 amorphous alloy
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SYSNO ASEP 0385510 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Influence of structural transformations on functional properties of Fe75Ni2Si8B13C2 amorphous alloy Author(s) Minić, Dušan M. (RS)
Blagojević, V. (RS)
Maričić, A. (RS)
Žák, Tomáš (UFM-A) RID
Minić, Dragica M. (RS)Number of authors 5 Source Title Materials Chemistry and Physics. - : Elsevier - ISSN 0254-0584
Roč. 134, č. 1 (2012), s. 111-115Number of pages 5 s. Language eng - English Country CH - Switzerland Keywords Amorphous materials ; Mössbauer spectroscopy ; Electrical properties ; Magnetic properties Subject RIV BM - Solid Matter Physics ; Magnetism R&D Projects 1M0512 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Institutional support UFM-A - RVO:68081723 UT WOS 000304581300020 DOI https://doi.org/10.1016/j.matchemphys.2012.02.037 Annotation The influence of thermal treatment on functional properties of Fe75Ni2Si8B13C2 amorphous alloy was investigated. Thermal history of the sample was found to have a significant effect on magnetic properties. Structural transformations were identified using DSC and thermomagnetic curve and characterized using Mössbauer spectroscopy and X-ray diffraction. Further investigation of magnetic and electrical properties of the alloy showed that structural relaxation prior to crystallization affected both magnetic susceptibility and electrical resistivity of the alloy, leading to an increase in both. This was caused by a confluence of stress relieving and a decrease in number of defects and an increase in free volume in the alloy sample, not only enabling greater mobility of magnetic domain walls, but also decreasing electron density of states at the Fermi level. The alloy also exhibits a wide supercooled liquid region before crystallization, where its functional properties remained relatively constant, exhibiting the low values of both magnetic susceptibility and electrical conductivity. Workplace Institute of Physics of Materials Contact Yvonna Šrámková, sramkova@ipm.cz, Tel.: 532 290 485 Year of Publishing 2013
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