Surface Features of Nanocrystalline Alloys
Identifikátory výsledku
Kód výsledku v 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>
Výsledek na webu
<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>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Surface Features of Nanocrystalline Alloys
Popis výsledku v původním jazyce
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.
Název v anglickém jazyce
Surface Features of Nanocrystalline Alloys
Popis výsledku anglicky
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.
Klasifikace
Druh
J<sub>x</sub> - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
CEP obor
BM - Fyzika pevných látek a magnetismus
OECD FORD obor
—
Návaznosti výsledku
Projekt
<a href="/cs/project/GA14-12449S" target="_blank" >GA14-12449S: Vliv radiace na vybrané fyzikální vlastnosti perspektivních slitin pro jaderná zařízení</a><br>
Návaznosti
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Ostatní
Rok uplatnění
2015
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
Croatica Chemica Acta
ISSN
0011-1643
e-ISSN
—
Svazek periodika
88
Číslo periodika v rámci svazku
4
Stát vydavatele periodika
HR - Chorvatská republika
Počet stran výsledku
7
Strana od-do
539-545
Kód UT WoS článku
000379747900009
EID výsledku v databázi Scopus
2-s2.0-84965025502