Dielectric properties of non-swelling bentonite

dc.contributor.author	Σάλτας, Βασίλης	el
dc.contributor.author	Βαλλιανάτος, Φίλιππος	el
dc.contributor.author	Τριάντης, Δήμος Α.	el
dc.date.accessioned	2015-04-04T22:16:11Z
dc.date.available	2015-04-04T22:16:11Z
dc.date.issued	2015-04-05
dc.identifier.uri	http://hdl.handle.net/11400/8235
dc.rights	Αναφορά Δημιουργού-Μη Εμπορική Χρήση-Όχι Παράγωγα Έργα 3.0 Ηνωμένες Πολιτείες	*
dc.rights.uri	http://creativecommons.org/licenses/by-nc-nd/3.0/us/	*
dc.source	http://www.elsevier.com	en
dc.subject	Dielectric properties
dc.subject	Relaxation
dc.subject	Electric modulus
dc.subject	Διηλεκτρικές ιδιότητες
dc.subject	Χαλάρωση
dc.subject	Ηλεκτρικό μέτρο
dc.title	Dielectric properties of non-swelling bentonite	en
heal.type	journalArticle
heal.secondaryTitle	the effect of temperature and water saturation	en
heal.classification	Technology
heal.classification	Engineering
heal.classification	Τεχνολογία
heal.classification	Μηχανική
heal.classificationURI	http://id.loc.gov/authorities/subjects/sh85133147
heal.classificationURI	http://zbw.eu/stw/descriptor/19795-3
heal.classificationURI	N/A-Τεχνολογία
heal.classificationURI	N/A-Μηχανική
heal.keywordURI	http://id.loc.gov/authorities/subjects/sh85112498
heal.identifier.secondary	doi:10.1016/j.jnoncrysol.2008.03.050
heal.language	en
heal.access	free
heal.publicationDate	2008-12-15
heal.bibliographicCitation	SALTAS, V., VALLIANATOS, F. & TRIANTIS, D.A. (2008). Dielectric properties of non-swelling bentonite: the effect of temperature and water saturation. Journal of Non-Crystalline Solids. [Online] 354 (52-54). p.5533-5541. Available from: http://www.sciencedirect.com/ [Accessed 24/10/2008]	en
heal.abstract	In the present work, dielectric and conductivity measurements in the frequency range of 10 mHz–1 MHz were carried out by means of a high-resolution broadband spectrometer on non-swelling bentonite samples, at various low levels of hydration. The evolution of dielectric response was also examined after annealing of the samples up to 260 °C. Conductivity results in conjunction with the electric modulus representation (M∗) is proved to be the most suitable for the analysis of the dielectric data. Dielectric response is dominated by ionic (surface and bulk) conductivity as well as by grain polarization due to migration of ions along the clay layers. Both mechanisms are strongly affected by the concentration of bound water and the thermodielectric effect. Havrilliak–Negami dielectric relaxation functions were used to model the observed relaxations mechanisms in modulus formalism and the fitting parameters were evaluated at various water contents of the measured samples.	en
heal.publisher	Elsevier	en
heal.journalName	Journal of Non-Crystalline Solids	en
heal.journalType	peer-reviewed
heal.fullTextAvailability	true