Mössbauer Effect Study Of Iron Thin Films On Si/SiOx Substrate And Iron Phases At Deposited Carbon Nanotubes

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F10%3A00354513" target="_blank" >RIV/68378271:_____/10:00354513 - isvavai.cz</a>
Alternative codes found
RIV/68081723:_____/10:00354513 RIV/61989592:15310/10:10218104
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Mössbauer Effect Study Of Iron Thin Films On Si/SiOx Substrate And Iron Phases At Deposited Carbon Nanotubes
Original language description
Phase composition of 10 nm thick Fe film on the silicon substrate with 200 nm thick SiOx layer after annealing in vacuum and in H2+CH4 was investigated using Conversion Electron Mössbauer spectroscopy (CEMS) . CEMS spectra show that the original iron film was formed by Fe3+ phase. This phase is stable after the annealing in vacuum or in CH4+H2 below 500 °C but formation of phases with Fe2+ and Fe0 (?-Fe and ?-Fe) was observed after annealing at 500 °C and higher temperatures. Formation of fayalite (Fe2SiO4) occurred during vacuum annealing at 700 °C. SEM and CEMS study of the sample with grown multi-walled carbon nanotubes shows that the dominating part of iron atoms is present in Fe3C and Fe5C2 carbide phases. Besides their stoichiometric forms spectrum components which can be ascribed to the amorphous Fe5-xC2+x carbides, ?-Fe, and Fe3+ were observed there.
Czech name
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Czech description
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Project
<a href="/en/project/1M0512" target="_blank" >1M0512: Research center of powdered nanomaterials</a><br>
Continuities
Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year
2010
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
Mössbauer Spectroscopy in Materials Science - 2010
ISBN
978-0-7354-0806-7
ISSN
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e-ISSN
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Number of pages
6
Pages from-to
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Publisher name
American Institute of Physics
Place of publication
Melville, New York
Event location
Liptovský Ján
Event date
Jan 31, 2010
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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