Εξειδίκευση τύπου :	Άρθρο σε επιστημονικό περιοδικό
Τίτλος:	A multispectroscopic structural study of lead silicate glasses over an extended range of compositions
Δημιουργός/Συγγραφέας:	Feller, S. Lodden, G. Riley, A. Edwards, T. Croskrey, J. Schue, A. Liss, D. Stentz, D. Blair, S. Kelley, M. Smith, G. Singleton, S. Affatigato, M. Holland, D. Smith, M. E. [EL] Καμίτσος, Ευστράτιος Ι.[EN] Kamitsos, Efstratios I. [EL] Βαρσάμης, Χρήστος-Πλάτων Ε.[EN] Varsamis, Christos-Platon E. Ioannou, E.
Εκδότης:	Elsevier BV, North-Holland
Τόπος έκδοσης:	AMSTERDAM
Ημερομηνία:	2010-03-01
Γλώσσα:	Αγγλικά
ISSN:	0022-3093
DOI:	10.1016/j.jnoncrysol.2009.12.003
Περίληψη:	A series of lead silicate glasses, spanning the broadest reported range of lead contents (up to 83 mol% PbO), were prepared, on which the following spectroscopic observations were made: (29)Si magic angle spinning nuclear magnetic resonance, time of flight mass spectroscopy, raman spectroscopy and fourier transform infrared spectroscopy. For bulk. splat-quenched samples, infrared results indicate that the lever rule is approximately followed until about 60 mol% PbO, though with considerable dissociation of the stoichiometric groups into silicate units with lesser and greater numbers of non-bridging oxygens. For roller-quenched samples, nuclear magnetic resonance data are consistent with a statistical distribution up to this lead concentration. Above 60 mol% PbO, added oxygen remains associated with lead to form a separate lead oxide glass network. The evidence for this comes from each of the spectroscopic techniques employed. A quantitative distribution of PbO is given.
Τίτλος πηγής δημοσίευσης:	Journal of Non-crystalline Solids
Τόμος/Κεφάλαιο:	356
Τεύχος:	6-8
Σελίδες:	304-313
Θεματική Κατηγορία:	[EL] Επιστήμη (Γενικά)[EN] Science (General) [EL] Τεχνολογία (Γενικά)[EN] Technology (General)
Λέξεις-Κλειδιά:	Diffraction and scattering measurements Raman scattering Glass formation Glass transition Glasses Nuclear magnetic (and quadrupole) resonance Mass spectroscopy Modeling and simulation Optical properties FTIR measurements Oxide glasses Silicates Resonance methods NMR, MAS NMR and NQR Structure Short-range order Thermal properties Glass transition Materials Science, Ceramics Materials Science, Multidisciplinary
Αξιολόγηση από ομότιμους (peer reviewed):	Ναι
Κάτοχος πνευματικών δικαιωμάτων:	© 2009 Elsevier B.V. All rights reserved.
Ηλεκτρονική διεύθυνση περιοδικού (link) :	http://www.elsevier.com/locate/jnoncrysol
Εμφανίζεται στις συλλογές:	Ινστιτούτο Θεωρητικής και Φυσικής Χημείας (ΙΘΦΧ) - Επιστημονικό έργο