Characterization and thermal behaviour of garnets from almandine-pyrope series at 1200 degrees C
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F04%3A00002307" target="_blank" >RIV/61989592:15310/04:00002307 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Characterization and thermal behaviour of garnets from almandine-pyrope series at 1200 degrees C
Original language description
The natural garnets from almandine (Fe3Al2Si3O12) -pyrope (Mg3Al2Si3O12) series with the iron to magnesium atomic ratio ranging from 0.2 to 1 were characterised and their thermal behaviour at 1200degreesC studied by Fe-57 Mossbauer spectroscopy, X-ray powder diffraction, X-ray fluorescence, DTA, TG and electron microprobe analysis. The pyrope-type samples with a dominant magnesium content at position 24c in the cubic garnet structure undergo oxidative decomposition at 1200degreesC resulting in the formation of the paramagnetic spinel Mg(Al, Fe)(2)O-4 structure with a low iron content, enstatite (Mg, Fe) SiO3 and anorthite CaAl2Si2O8 as the host compound for calcium. Contrary to pyropes, the iron-rich garnets exhibit complete oxidation at 1200degreesC conforming to the formation of magnetically ordered nanocrystalline gamma-Fe2O3 or Mg(Fe, Al)(2)O-4 spinels depending on the initial chemical composition of the garnets. In the reaction products of iron-rich garnets, cordierite (Mg2Al4Si5O
Czech name
Characterizace a termické chování granátů almandin-pyropové řady při 1200 stupních Celsia
Czech description
Byla studována characterizace a termické chování granátů almandin-pyropové řady při 1200 stupních Celsia.
Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
CI - Industrial chemistry and chemical engineering
OECD FORD branch
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Result continuities
Project
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Continuities
Z - Vyzkumny zamer (s odkazem do CEZ)
Others
Publication year
2004
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Hyperfine Interactions
ISSN
0304-3843
e-ISSN
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Volume of the periodical
156
Issue of the periodical within the volume
1
Country of publishing house
NL - THE KINGDOM OF THE NETHERLANDS
Number of pages
8
Pages from-to
403-410
UT code for WoS article
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EID of the result in the Scopus database
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