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The effect of Cs2O additions on HLW wasteform glasses
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UNSPECIFIED (2005) The effect of Cs2O additions on HLW wasteform glasses. JOURNAL OF NON-CRYSTALLINE SOLIDS, 351 (30-32). pp. 2425-2432. doi:10.1016/j.jnoncrysol.2005.06.035 ISSN 0022-3093.
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Official URL: http://dx.doi.org/10.1016/j.jnoncrysol.2005.06.035
Abstract
Physical parameters and structural characteristics are reported for the mixed alkali borosilicate glass system, xCS(2)O(100-x)(MW) (0 <= x <= 9.66) where MW is the BNFL wasteform glass (10.29mol% Li2O, 10.53mol% Na2O, 18.57 mol% B2O3, 60.61 mol% SiO2). Glass density was found to increase with x whilst the glass transition temperature (T-g) decreased. The fraction of four-coordinated boron (N-4) determined from 1113 magic angle spinning nuclear magnetic resonance (MAS NMR) increased with x in a manner consistent with previous reports on the sodium-lithium-borosilicate system and contrary to the Dell model. Si-29 MAS NMR was used to identify the fraction of Q(4) (B) and Q(3) units as a function of x. Raman spectra indicated the presence of reedmergnerite and danburite superstructural units. Mass loss measurements showed a non-linear variation with x, having a maximum between 7 and 8 mol% Cs2O and a correlation was found between the amount of Q(3) units in the solid and the volatilization loss from the melt. (c) 2005 Elsevier B.V. All rights reserved.
Item Type: | Journal Article | ||||
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Subjects: | T Technology > TP Chemical technology T Technology > TA Engineering (General). Civil engineering (General) |
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Journal or Publication Title: | JOURNAL OF NON-CRYSTALLINE SOLIDS | ||||
Publisher: | ELSEVIER SCIENCE BV | ||||
ISSN: | 0022-3093 | ||||
Official Date: | 1 September 2005 | ||||
Dates: |
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Volume: | 351 | ||||
Number: | 30-32 | ||||
Number of Pages: | 8 | ||||
Page Range: | pp. 2425-2432 | ||||
DOI: | 10.1016/j.jnoncrysol.2005.06.035 | ||||
Publication Status: | Published |
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