EPR study of paramagnetic defects in clay minerals

• Autorzy: Babińska Joanna , Dyrek Krystyna , Wyszomirski Piotr

Identyfikatory

DOI

10.2478/v10002-007-0021-x

Warianty tytułu

PL

Badania paramagnetycznych defektów w minerałach ilastych metodą EPR

• Języki publikacji: EN

Abstrakty

EN

Radiation induced defects (RID-s) and transition metal ion impurities were revealed by EPR (Electron Paramagnetic Resonance) spectroscopy in kaolinites from a number of Polish deposits. Arelationship between the intensity of the EPR signals of the RID-s and quantity of radioactive elements was defined in these minerals. In one of the deposits of kaolinites (Wyszonowice) the EPR signal intensity depends on grain size. Other clay minerals studied (illites, montmorillonites) only show weak signals of the RID type.

PL

Punktowe defekty strukturalne typu RID-s były badane metodą elektronowego rezonansu paramagnetycznego (EPR) w próbkach kaolinitu pochodzących z różnych złóż Polski. Stwierdzono w nich zależność między ilością defektów strukturalnych a zawartością pierwiastków promieniotwórczych. W przypadku kaolinitu pochodzącego z jednego ze złóż (Wyszonowice) sygnał EPR zależy też od uziarnienia minerału. Pozostałe badane minerały ilaste (illit, montmorillonit) ujawniają jedynie słabe sygnały typu RID.

Słowa kluczowe

EN

EPR; clay minerals; radiation induced defects

PL

EPR; minerały ilaste; defekty strukturalne

• Wydawca: Mineralogical Society of Poland
• Czasopismo: Mineralogia
• Rocznik: 2007
• Tom: Vol. 38, iss. 2
• Strony: 125--138
• Opis fizyczny: Bibliogr. [32] poz., rys., tab., wykr.

Twórcy

autor

Babińska Joanna

• Building Research Institute, ul. Filtrowa 1, 00-611 Warszawa, Poland

autor

Dyrek Krystyna

• Faculty of Chemistry, Jagiellonian University, ul. Ingardena 3, 30-060 Kraków, Poland

autor

Wyszomirski Piotr

• Faculty of Material Science and Ceramics, AGH-University of Science and Technology, al. Mickiewicza 30, 30-059 Kraków, Poland

Bibliografia

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