RAMAN STUDY OF THE STRUCTURE OF ALKALI GERMANOSILICATE GLASSES .2. LITHIUM, SODIUM AND POTASSIUM DIGERMANOSILICATE GLASSES

被引:48
作者
VERWEIJ, H
机构
[1] Philips Research Laboratories, Eindhoven
关键词
D O I
10.1016/0022-3093(79)90095-4
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
Polarized and depolarized Raman spectra of lithium, sodium and potassium digermanosilicate glasses of the composition 33 A2O 67[(1 - y)SiO2, y GeO2] and powder Raman spectra of crystalline Li2O · 2 GeO2 and K2O · 2 GeO2 are given. From the Raman spectra it is concluded that the structure of the glasses mainly consists of networks of SiO4 and GeO4 tetrahedra with one non-bridging oxygen atom, probably mixed in a random way. The structure is comparable to that of crystalline disilicates and digermanates. © 1979.
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页码:55 / 69
页数:15
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