A multispectroscopic structural study of lead silicate glasses over an extended range of compositions

Feller, Steve and Lodden, G. and Riley, A. and Edwards, T. and Croskrey, J. and Schue, A. and Liss, D. and Stentz, D. and Blair, S. and Kelley, M. and Smith, G. and Singleton, S. and Affatigato, Mario and Holland, D. and Smith, Mark E. and Kamitsos, E. I. and Varsamis, C. P. E. and Ioannou, E. (2010) A multispectroscopic structural study of lead silicate glasses over an extended range of compositions. Journal of Non-Crystalline Solids, 356 (6-8). pp. 304-313. ISSN 0022-3093

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Abstract

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: 29Si 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.

Item Type:
Journal Article
Journal or Publication Title:
Journal of Non-Crystalline Solids
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/3100/3104
Subjects:
Departments:
ID Code:
65098
Deposited By:
Deposited On:
07 Jun 2013 10:39
Refereed?:
Yes
Published?:
Published
Last Modified:
01 Apr 2020 03:14