Description
Quartz Glass Windows
Product description:
Quartz Glass Windows is made of high purity quartz sand with excellent thermal shock stability and high transmittance. It is widely used in electric light/ laser/ lenses/optical instrument/high temperature window.
China Optical Quartz Glass Grade
Name |
Corresponding grade |
Feature |
Far Ultraviolet Optical Quartz Glass |
JGS1 |
Transparent in the ultraviolet and visible spectrum; no absorption band in the 185-250nm band; strong absorption band in the 2600-2800nm band; non-luminous, stable light radiation. |
UV optical quartz glass |
JGS2 |
Transparent in the ultraviolet and visible spectrum; no absorption band in the 200-250nm band; strong absorption band in the 2600-2800nm band; non-luminous, stable light radiation |
Infrared optical quartz glass |
JGS3 |
Transparent in the visible and infrared spectrum; no obvious absorption band in the 2600-2800nm band; |
Applications :
Etch tanks,
Optical windows,
Temperature resistance support plates
Pedestals for reaction chambers
Quartz cover plates
Temperature resistant accessories on semiconductor equipment
Vacuum coating equipment accessories
Specification:
Shape |
Length/OD |
width |
thickness |
Surface quality |
Round |
0.5mm to 1200mm |
|
0.05mm to 500mm |
80/50,60/40,40/20,40/20,20/10 |
square |
0.5mm to 1200mm |
0.5mm to 1200mm |
0.05mm to 500mm |
80/50,60/40,40/20,40/20,20/10 |
Tolerance:±0.02mm to 2mm |
customer |
|||
Other sizes can be customized according to customer requirements |
|
Quartz Characteristic
SIO2 |
99.99% |
Density |
2.2(g/cm3) |
Degree of the hardness moh’ scale |
6.6 |
Melting point |
1732℃ |
Working temperature |
1100℃ |
Max temperature can reach in a short time |
1450℃ |
Acid tolerance |
30 times than ceramic,150 times than stainless |
Visible light transmittance |
Above 93% |
UV spectral region transmittance |
80% |
Resistance value |
10000 times than ordinary glass |
Annealing point |
1180℃ |
Softening point |
1630℃ |
Strain point |
1100℃ |
Optical properties of quartz glass
Wavelength |
Transmittance% |
||
nm |
Synthetic quartz glass |
Fused Quartz glass |
Infrared quartz glass |
170 |
50 |
10 |
0 |
180 |
80 |
50 |
3 |
190 |
84 |
65 |
8 |
200 |
87 |
70 |
20 |
220 |
90 |
80 |
60 |
240 |
91 |
82 |
65 |
260 |
92 |
86 |
80 |
280 |
92 |
90 |
90 |
300 |
92 |
91 |
91 |
320 |
92 |
92 |
92 |
340 |
92 |
92 |
92 |
360 |
92 |
92 |
92 |
380 |
92 |
92 |
92 |
400-2000 |
92 |
92 |
92 |
2500 |
85 |
87 |
92 |
2730 |
10 |
30 |
90 |
3000 |
80 |
80 |
90 |
3500 |
75 |
75 |
88 |
4000 |
55 |
55 |
73 |
4500 |
15 |
25 |
35 |
5000 |
7 |
15 |
30 |