RAMAN-STUDY OF BI2O3-GEO2-SIO2 GLASSES

被引：29
|
作者：
BENEVENTI, P
BERSANI, D
LOTTICI, PP
KOVACS, L
CORDIOLI, F
MONTENERO, A
GNAPPI, G
机构：
[1] UNIV PARMA,INFM,I-43100 PARMA,ITALY
[2] UNIV PARMA,DEPT PHYS,I-43100 PARMA,ITALY
[3] HUNGARIAN ACAD SCI,CRYSTAL PHYS RES LAB,H-1112 BUDAPEST,HUNGARY
[4] UNIV PARMA,DEPT CHEM,I-43100 PARMA,ITALY
[5] CORIVE,CONSORZIO RIC INNOVAZ VETRO,I-43100 PARMA,ITALY
来源：
JOURNAL OF NON-CRYSTALLINE SOLIDS | 1995年 / 193卷
关键词：
D O I：
10.1016/0022-3093(95)00360-6
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：
Raman spectra have been obtained for 2Bi(2)O(3)-3[(GeO2)(x)-(SiO2)(1-x)](2-3 composition) and 6Bi(2)O(3)-[(GeO2)(x)-(SiO2)(1-x)] (6-1 composition) glasses at different Ge/Si nominal ratios. In both compositions, the vibrational structure at low frequencies is nearly independent of x. At higher frequencies, typical vibrations are found which may be attributed to Ge-O and Si-O bonds in GeO4 and SiO4 tetrahedral units, respectively, as observed in mixed crystals with the same stoichiometric formula.
引用
收藏
页码：258 / 262
页数：5
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