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Balek, V.* ; Benes, M.* ; Malek, Z.* ; Matuschek, G. ; Kettrup, A.* ; Yariv, S.*

Emanation thermal analysis study of Na-montmorillonite and montmorillonite saturated with various cations.

J. Therm. Anal. Calorim. 83, 617-623 (2006)
Verlagsversion DOI
Open Access Green möglich sobald Postprint bei der ZB eingereicht worden ist.
Emanation thermal analysis (ETA) and thermogravimetry measured in the range 20-1000 degrees C was used to characterize the thermal behaviour of Na-montmorillonite (Upton Wyoming, USA) and homoionic montmorillonite samples prepared by saturation with cations Li+ , Mg2+, Al3+, respectively. It was confirmed that the presence of cations used for montmorillonite saturation (Li+, Mg2+, Al3+) influenced the thermal behaviour of the samples. The results that indicated the decrease of radon release rate corresponding to a collapse of the interlayer space between the silicate sheets after water release and the crystallization of meta-montmorillonite in the respective temperature intervals were compared. From the ETA results it followed that the thermal stability of intermediate microstructure depends on the type of exchanged cation. A mathematical model was used to evaluate the ETA data.
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Publikationstyp Artikel: Journalartikel
Dokumenttyp Wissenschaftlicher Artikel
Schlagwörter Emanation thermal analysis; meta-montmorillonite; microstructure; Na-montmorillonite; saturation with Li+;Mg2+;Al3+; thermal behaviour; thermogravimetry
ISSN (print) / ISBN 1388-6150
e-ISSN 1588-2926
Quellenangaben Band: 83, Heft: 3, Seiten: 617-623 Artikelnummer: , Supplement: ,
Verlag Springer
Begutachtungsstatus Peer reviewed