DC pole | Wartość | Język |
dc.contributor.author | Malczewski, Dariusz | - |
dc.contributor.author | Frąckowiak, Janusz | - |
dc.contributor.author | Galuskin, Evgeny | - |
dc.date.accessioned | 2020-06-22T10:21:31Z | - |
dc.date.available | 2020-06-22T10:21:31Z | - |
dc.date.issued | 2007 | - |
dc.identifier.citation | Nukleonika, Vol. 52, supl. 1 (2007), s. 81-84 | pl_PL |
dc.identifier.issn | 1508-5791 | - |
dc.identifier.issn | 0029-5922 | - |
dc.identifier.uri | http://hdl.handle.net/20.500.12128/14671 | - |
dc.description.abstract | This paper reports preliminary results of 57Fe Mössbauer spectroscopy and X-ray diffraction (XRD) studies
of metamict davidite samples (La,Ce,Ca,Th)(Y,U,Fe)(Ti,Fe,Mn)20(O,OH)38 after high temperature annealing in an argon atmosphere. The Mössbauer spectra show a gradual decrease of quadrupole splitting and line width values of an Fe3+ doublet with increasing annealing temperature. Rather unexpected feature of these spectra for an Fe2+ doublet is a considerable increase of the line width with progressive crystallinity and a simultaneous decrease of both quadrupole splitting and isomer shift values. Changes of the hyperfine parameters as a function of the annealing temperature appeared as sensitive indicators of the thermal recrystallization process of metamict davidite similar to metamict silicates. | pl_PL |
dc.language.iso | en | pl_PL |
dc.rights | Uznanie autorstwa-Użycie niekomercyjne-Bez utworów zależnych 3.0 Polska | * |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/3.0/pl/ | * |
dc.subject | davidite | pl_PL |
dc.subject | metamict minerals | pl_PL |
dc.subject | recrystallization | pl_PL |
dc.subject | Mössbauer spectroscopy | pl_PL |
dc.title | 57Fe Mossbauer spectroscopy of annealed metamict davidite | pl_PL |
dc.type | info:eu-repo/semantics/article | pl_PL |
Pojawia się w kolekcji: | Artykuły (WNP)
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