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NANOSCALE PHASES ON SURFACE FE-6SI MAGNETIC SHEETS

1 ŚVÁBENSKÁ Eva
Co-authors:
1 ROUPCOVÁ Pavla 1 KRÁL Lubomír 1,2 BULÍN Tomáš 3 VONDRÁČEK Martin 4 FOLDYNA Josef 5 ČECHAL Jan 1,6 SCHNEEWEISS Oldřich
Institutions:
1 Institute of Physics of Materials of the CAS, Brno, Czech Republic
2 Faculty of Electrical Engineering and Communication Brno University of Technology, Brno, Czech Republic
3 Institute of Physics of the CAS, Prague, Czech Republic
4 Institute of Geonics of the CAS, Ostrava, Czech Republic
5 Institute of Physical Engineering, Brno University of Technology, Brno, Czech Republic.
6 CEITEC IPM, Brno, Czech Republic
Conference:
8th International Conference on Nanomaterials - Research & Application, Hotel Voronez I, Brno, Czech Republic, EU, October 19th - 21st 2016
Proceedings:
Proceedings 8th International Conference on Nanomaterials - Research & Application
Pages:
172-177
ISBN:
978-80-87294-71-0
ISSN:
2694-930X
Published:
17th March 2017
Proceedings of the conference were published in Web of Science and Scopus.
Metrics:
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Abstract

Analysis of the nanoscale phases which appear on the surface Fe-6Si samples were carried out after the various treatments – grinding and etching, annealing, and water jet abrasion. The basic information on structure, chemical and phase composition was obtained by X-Ray Powder Diffraction (XRD), Scanning Electron Microscopy with EDX, Glow Discharge Optical Emission Spectrometry (GDOES), Mössbauer Spectroscopy and X-ray Photoelectron Spectrometry (XPS). The results show high stability of the surface phase composition after the mechanical and heat treatments. Results obtained from the surface analysis in micrometer depth (XRD, EDX, GDOES) do not show any changes after the different treatments. Iron oxides were detected in XPS and conversion electron Mössbauer spectra (CEMS) which analyze the surface composition in a nanometer scale. In addition to, fine changes in atomic ordering on the surface can be observed after mechanical and heat treatments in the CEMS spectra.

Keywords: Fe-Si alloy, surface modification, nanostructure

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