Examination of the mixed-alkali effect i
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F. Ali; A.V. Chadwick; G.N. Greaves; M.C. Jermy; K.L. Ngai; M.E. Smith
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Article
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1995
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Elsevier Science
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English
โ 998 KB
Results from 29Si, 23Na and 7Li magic-angle spinning nuclear magnetic resonance (NMR) spectroscopy, 7Li NMR relaxation and electrical conductivity in a series of [Li(1-x).Nax]2O.2SiO2 (disilicate) glasses are used to investigate the mixed-alkali effect. From the 29Si NMR spectra there is relatively