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|Title:||A multispectroscopic structural study of lead silicate glasses over an extended range of compositions|
Smith, M. E.
Kamitsos, E. I.
Varsamis, C. P. E.
|Type:||Journal Article (Scientific Journal article)|
|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: (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.|
|Publisher:||Elsevier BV, North-Holland|
|Journal Title:||Journal of Non-crystalline Solids|
|Subject Category:||Science::Science (General)|
|Keywords:||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|
|Other Identifiers:||DOI: http://dx.doi.org/10.1016/j.jnoncrysol.2009.12.003|
|Journal web Location :||http://www.elsevier.com/locate/jnoncrysol|
|Rights holder:||© 2009 Elsevier B.V. All rights reserved.|
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