VIBRATIONAL-SPECTRA AND DEFECT STRUCTURE OF SILICA PREPARED BY NONORGANIC SOL-GEL PROCESS

被引:45
作者
CHMEL, A
MAZURINA, EK
SHASHKIN, VS
机构
[1] A.F. Ioffe Physico-Technical Institute, Academy of Sciences, the USSR
关键词
D O I
10.1016/0022-3093(90)90993-V
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
Samples of porous and monolithic silica glass produced by the low-temperature non-organic sol-gel process were studied by vibrational spectroscopy methods. The spectra of finely porous samples with 0.6-0.9 nm-thick inter-pore membranes reveal a set of the bands associated with all possible kinds of structural defects observable in IR and Raman spectra. The comparison of Raman spectra of the porous samples obtained under different conditions shows that the 490 cm-1 'defect' line intensity grows in accordance with the intensity of the 'surface' silanol groups line at 980 cm-1. © 1990.
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页码:285 / 290
页数:6
相关论文
共 22 条
[1]  
Antonova K. T., 1987, Bulgarian Journal of Physics, V14, P245
[2]   NEUTRON-IRRADIATION EFFECTS AND STRUCTURE OF NONCRYSTALLINE SIO2 [J].
BATES, JB ;
HENDRICKS, RW ;
SHAFFER, LB .
JOURNAL OF CHEMICAL PHYSICS, 1974, 61 (10) :4163-4176
[3]   RAMAN DEFECT PEAKS IN THE SPECTRA OF NA2O SILICA-GELS EVOLVING TOWARD GLASS [J].
BERTOLUZZA, A ;
FAGNANO, C ;
MORELLI, MA ;
GOTTARDI, V ;
GUGLIELMI, M .
JOURNAL OF NON-CRYSTALLINE SOLIDS, 1986, 82 (1-3) :127-136
[4]   LASER-INDUCED GENERATION OF STRUCTURAL DEFECTS IN VITREOUS SILICA AND IN ACTIVATED SILICATE GLASS [J].
CHMEL, A ;
ERONKO, SB .
JOURNAL OF NON-CRYSTALLINE SOLIDS, 1985, 70 (01) :45-53
[5]   INFRARED-ABSORPTION SPECTRA OF LITHIUM AND POTASSIUM SILICATE-GLASSES AT HIGH-PRESSURE [J].
FERRARO, JR ;
MANGHNAN.MH ;
BASILE, LJ .
JOURNAL OF APPLIED PHYSICS, 1973, 44 (12) :5391-5396
[6]  
FRIEBLE EJ, 1979, PHYS REV LETT, V42, pB46
[7]   PLANAR RINGS INVITREOUS SILICA [J].
GALEENER, FL .
JOURNAL OF NON-CRYSTALLINE SOLIDS, 1982, 49 (1-3) :53-62
[8]   THE STRUCTURE OF SILICA GLASS IN DEPENDENCE ON THE FICTIVE TEMPERATURE [J].
GERBER, T ;
HIMMEL, B .
JOURNAL OF NON-CRYSTALLINE SOLIDS, 1987, 92 (2-3) :407-417
[9]   FURTHER INVESTIGATIONS ON RAMAN-SPECTRA OF SILICA-GEL EVOLVING TOWARD GLASS [J].
GOTTARDI, V ;
GUGLIELMI, M ;
BERTOLUZZA, A ;
FAGNANO, C ;
MORELLI, MA .
JOURNAL OF NON-CRYSTALLINE SOLIDS, 1984, 63 (1-2) :71-80
[10]  
HENCH LL, 1986, SCI CERAMIC CHEM PRO, P52