NUCLEAR-MAGNETIC-RESONANCE AND TRANSMISSION ELECTRON-MICROSCOPY STUDIES OF MIXED-ALKALI SILICATE-GLASSES

被引:21
作者
EMERSON, JF
BRAY, PJ
机构
[1] UNIV CALIF IRVINE,DEPT RADIOL SCI,DIV PHYS & ENGN,IRVINE,CA 92717
[2] BROWN UNIV,DEPT PHYS,PROVIDENCE,RI 02912
基金
美国国家科学基金会;
关键词
D O I
10.1016/0022-3093(94)90227-5
中图分类号
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
Si-29, Na-23 and Cs-133 7.05 T NMR studies of sodium-cesium mixed-alkali silicate glasses are reported. The fractional contribution to the spectral intensity of the various Q(n) units and the values of the chemical shift tensors for each of the Si-29 sites are determined as a function of alkali composition. Transmission electron microscopy of lithium-potassium disilicate glasses reveals no correlation between alkali linewidths and phase separation.
引用
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页码:87 / 95
页数:9
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