Sol-gel technology of obtaining think silica gel glasses
- PURPOSE
This know-how allows receiving plates of a quartz glass without melting and cuting of monoliths on separate plates. Think silica gel glasses (<=1 mm) are intended for manufacturing of optical elements, screens displays, light filters with selective absorption of light radiation over a wide wavelength range, etc.
- The area of application
Think silica gel glasses can be applied in optics, quantum electronics, microelectronics, spectacles of different types, screens TFT- displays, optical windows in devices, plates for a microwave microcircuit, etc.
- Advantages
Excellent optical, physical-mechanical and chemical properties
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silica gel glasses (SGG)
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characteristics
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Refractive index (l=0.633)
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1.4528
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Transmittance (0,8 mm thick ) for
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l=0.2 mm
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85%
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l=0.3-0.6 mm
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87,5%
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l=1.0 mm
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90,0%
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l=2.7 mm
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15%
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l=3 mm
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94%
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OH- groups concentration
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2-300 ppm
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Density (g/cm3)
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2.20
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Thermal expansion coefficient (10-6/0C)
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5,5
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Relative dielectric inductivity
(2-200 0Ñ, F=1010 Hz)
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3,82±0,1
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Tangent dielectric losses (10-4,
2-200 0Ñ, F=1010 Hz)
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1
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Variants of cooperation: Delivery of consignments of a glass, transfer of sol-gel technologies of their manufacture on the license basis, development of new kinds of glasses.
Contacts:
Problem research laboratory of perspective materials
The head, developer – Gaishun Vladimir
Tel.(+375 232) 57 64 36, fax (+375 232) 57 63 57
Email: vgaishun@gsu.by
vgaishun@mail.ru
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