Quarts Glass Paramters
Quarts Glass
Quartz glass is a special industrial technology glass made of silica, is a very good basic material, quartz glass sheet has a series of excellent physical and chemical properties
1. High temperature resistance
The softening point temperature of quartz glass is about 1730°C, which can be used for a long time at 1100°C, and the higher temperature can reach 1450°C in a short time.2. Corrosion resistance
Except for hydrofluoric acid, quartz glass hardly reacts with other acid substances, its acid resistance is 30 times that of ceramics and 150 times that of stainless steel, especially its chemical stability at high temperature, which is unmatched by any other engineering materials. comparable.
3. Good thermal stability
The thermal expansion coefficient of the adaptable glass is extremely small, and it can withstand severe temperature changes. When the quartz glass is heated to about 1100 ° C, it will not burst into normal temperature water.4. Good light transmission performance
Quartz glass sheet has good light transmittance in the entire spectral band from ultraviolet to infrared, and the visible light transmittance is above 93%, especially in the ultraviolet spectral region, the maximum transmittance can reach more than 80.
5. Good electrical insulation performance
The resistance value of quartz glass is equivalent to 10,000 times that of ordinary glass. It is an excellent electrical insulating material and has good electrical properties even at room temperature.|
Grade |
Name |
Applied spectral range (μm） |
|
JGS1 |
Far UV Optical Quartz Glass |
0.185-2.5 |
| JGS2 |
Glass for UV optics |
0.220-2.5 |
| JGS3 |
Infrared Optical Quartz Glass |
0.260-3.5 |
Spectral properties
|
TYPE |
Transmittance through 10mm blank (%) |
|||||
|
0.185μm |
0.200μm |
0.220μm |
0.240μm |
0.300μm |
0.185-1.2μm |
|
|
1 |
>85 |
>85 |
>85 |
>87 |
>90 |
No absorption peak |
|
2 |
>70 |
>80 |
>80 |
>80 |
>80 |
No absorption peak |
|
3 |
|
>70 |
>70 |
>70 |
>80 |
No absorption peak |
（2）jgs2 UV optical quartz glass by spectral characteristics
|
TYPE |
Transmittance through 10mm blank (%) |
||
|
0.200μm |
0.240μm |
0.300μm |
|
|
1 |
>80 |
>75 |
>85 |
|
2 |
>75 |
>70 |
>75 |
|
3 |
|
>65 |
>70 |
（3）jgs3 infrared optical quartz glass by spectral characteristics
|
TYPE |
Transmittance through 10mm blank (%) |
||||
|
2.0μm |
2.5μm |
2.7μm |
2.8μm |
0.2-2.8μm |
|
|
1 |
>90 |
>90 |
>90 |
>85 |
No absorption peak |
|
2 |
>85 |
>85 |
>85 |
>80 |
No absorption peak |
|
3 |
>80 |
>80 |
>75 |
>75 |
No absorption peak |
（4）The average transmittance of the visible light part of the 10 mm thick blanks jgs1, jgs2 and jgs3 should all be greater than 90%.
