Surface Features of Nanocrystalline Alloys

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F15%3A00306374" target="_blank" >RIV/68407700:21340/15:00306374 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.5562/cca2757" target="_blank" >http://dx.doi.org/10.5562/cca2757</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.5562/cca2757" target="_blank" >10.5562/cca2757</a>

Result language
angličtina
Original language name
Surface Features of Nanocrystalline Alloys
Original language description
Nanocrystalline alloys are prepared by controlled annealing of metallic glass precursors. The latter are obtained by rapid quenching of a melt on a rotating wheel. This process leads to structural deviation of the produced ribbons' surfaces. Structural features of as-quenched and thermally annealed (Fe81Mo8Cu1B10)-Fe-57 ribbons were studied employing Conversion Electron Mossbauer Spectrometry (CEMS) and Conversion X-ray Mossbauer Spectrometry (CXMS). Enrichment of the alloy's composition in Fe-57 helped in identification of surface crystallites that were formed even during the production process. Magnetite and bcc-Fe were found at the wheel side of the as-quenched ribbons whereas only bcc-Fe nanocrystals were uncovered at the opposite air side. Accelerated formation of bcc-Fe was observed in this side of the ribbons after annealing. The relative content of magnetite at the wheel side was almost stable in near surface areas (CEMS) and in more deep subsurface regions (CXMS). It vanished completely after annealing at 550 degrees C. No magnetite was observed at the air side of the ribbons regardless the annealing temperature and/or depth of the scanned regions.
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BM - Solid-state physics and magnetism
OECD FORD branch
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Project
<a href="/en/project/GA14-12449S" target="_blank" >GA14-12449S: Impact of radiation on distinctive physical properties of advanced materials for nuclear facilities</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2015
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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