Mossbauer study of transformation mechanism of Fe cations in olivine after thermal treatments in air

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15410%2F03%3A00001313" target="_blank" >RIV/61989592:15410/03:00001313 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Mossbauer study of transformation mechanism of Fe cations in olivine after thermal treatments in air

Original language description

The transformation mechanism of Fe cations in natural olivine after thermal treatments in air has been studied using mainly Fe-57 Mossbauer spectroscopy. gamma-Fe2O3 nanoparticles appear as the primary Fe3+ phase in Mossbauer spectra of olivine samples heated at 600-900 degreesC. These nanoparticles are thermally unstable and they are transformed to alpha-Fe2O3 with the increase of heating time. Another transformation mechanism of iron related with the complete decomposition of olivine structure has been observed at temperatures of 1000 degreesC and higher. The mixed oxide MgFe2O4 with the spinel structure and enstatite MgSiO3 were identified as iron-bearing decomposition products.

Czech name

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Czech description

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Type

J_x - 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

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Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2003

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY

ISSN

0236-5731

e-ISSN

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Volume of the periodical

255

Issue of the periodical within the volume

3

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

5

Pages from-to

529-533

UT code for WoS article

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EID of the result in the Scopus database

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