Thermal decomposition of almandine garnet: Mossbauer study
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F01%3A00001282" target="_blank" >RIV/61989592:15310/01:00001282 - isvavai.cz</a>
Alternative codes found
RIV/61989100:27350/01:00000201 RIV/61989592:15310/01:00001283
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Thermal decomposition of almandine garnet: Mossbauer study
Original language description
The thermal decomposition of almandine garnet from Zoltye Vody, Ukraine, has been studied using 57Fe Mössbauer spectroscopy. Room temperature Mössbauer spectrum of the initial powdered sample is characterised by one doublet corresponding to Fe2+ in dodecahedral position 24c. In the room temperature spectra of all heated almandine samples, a doublet corresponding to g-Fe2O3 nanoparticles appeared. Depending on the experimental conditions (the heating temperature and time), the additional spectral lines of a-Fe2O3 and e-Fe2O3 were observed in Mössbauer spectra. It is obvious that the thermal transformation of almandine garnet in air is related with the primary formation of ?-Fe2O3 superparamagnetic nanoparticles. ?-Fe2O3 nanoparticles are transformed into e-Fe2O3 and consequently into a-Fe2O3 at higher temperatures. The mechanism and kinetics of the individual structural transformations depend on experimental conditions - mainly on the heating temperature and the particles size.
Czech name
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Czech description
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Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
CF - Physical chemistry and theoretical chemistry
OECD FORD branch
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Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
Z - Vyzkumny zamer (s odkazem do CEZ)
Others
Publication year
2001
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Czechoslovak Journal of Physics
ISSN
0011-4626
e-ISSN
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Volume of the periodical
51
Issue of the periodical within the volume
7
Country of publishing house
CZ - CZECH REPUBLIC
Number of pages
6
Pages from-to
749-754
UT code for WoS article
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EID of the result in the Scopus database
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