Jinzhou Seahope New Material Co., Ltd tel: +86-416-7908037
Synthetic quartz glass
The synthetic quartz glass, named ZS, formerly referred as JGS1, is generally manufactured by the chemical vaporous deposition method (CVD) to hydrolysis and melt the gaseous high-purity silicon tetrachloride in a hydrogen-oxygen flame. It shows high transmittance from UV to near infrared, especially at 200 nm with the transmittance up to 90%. There is no fluorescence, no bubbles, no stripes in the product and the stress can reach 2 nm/cm, which are irreplaceable by ordinary optical materials. With the OH containing around 1000 ppm, it leads to strong absorption in the infrared spectroscopy (especially at 2730 nm).
Metallic Impurities
|
Impurity content ppm |
|||||||||||||
|
product |
Al |
Fe |
Ca |
Mg |
Ti |
Cu |
Mn |
Ni |
Co |
K |
Na |
Li |
OH |
|
HP3001 |
＜0.12 |
＜0.05 |
＜0.16 |
＜0.02 |
＜0.03 |
＜0.01 |
＜0.01 |
＜0.01 |
＜0.01 |
＜0.04 |
＜0.09 |
＜0.01 |
～1100 |
Transmission（T10mm）
Transmission
|
Series |
Spectral transmittance |
||||
|
185nm |
200nm |
215nm |
240nm |
300nm～380nm |
|
|
1 |
≥83% |
≥86% |
≥87% |
≥89% |
≥90% |
|
2 |
≥70% |
≥81% |
≥81% |
≥82% |
≥90% |
|
3 |
≥20% |
≥40% |
≥65% |
≥82% |
≥90% |
|
4 |
Does not require |
≥16% |
≥36% |
≥66% |
≥90% |
Homogeneity
|
Series |
Maximum differential refractive indexΔn |
|
1 |
≤2x10-6 |
|
2 |
≤5x10-6 |
|
3 |
≤10x10-6 |
|
4 |
≤20x10-6 |
Birefringence
|
Series |
Birefringence nm/cm |
|
1 |
≤2 |
|
1a |
≤4 |
|
2 |
≤6 |
|
3 |
≤10 |
|
4 |
≤20 |
Stripe
|
Series |
Stripe characteristics |
|
1 |
No streaks allowed |
|
2 |
Individual stripes are allowed, the number is no more than 10 in 1kg glass, and the width is less than 1mm |
Refractive Indices
|
Refractive Indices （at 20℃；Nitrogen atmosphere; 1 atm） |
||
|
|
λ（nm） |
n |
|
n2325 |
2325.59 |
1.43290 |
|
n1970 |
1970.56 |
1.43849 |
|
n1530 |
1530 |
1.44424 |
|
n1060 |
1060 |
1.44965 |
|
nt |
1014.25 |
1.45021 |
|
ns |
852.35 |
1.45243 |
|
nr |
706.71 |
1.45511 |
|
nc |
656.45 |
1.45633 |
|
nc’ |
644.03 |
1.45667 |
|
nHe-Ne |
632.98 |
1.45698 |
|
nD |
589.46 |
1.45837 |
|
nd |
587.73 |
1.45843 |
|
ne |
546.23 |
1.46004 |
|
nf |
486.27 |
1.46309 |
|
nf ’ |
480.13 |
1.46347 |
|
ng |
435.96 |
1.46666 |
|
nh |
404.77 |
1.46958 |
|
ni |
365.12 |
1.47450 |
|
n334 |
334.24 |
1.47973 |
|
n312 |
312.66 |
1.48446 |
|
n296 |
296.82 |
1.48870 |
|
n280 |
280.43 |
1.49401 |
|
n248 |
248.35 |
1.50837 |
|
n194 |
194.23 |
1.55887 |
|
n193 |
193.37 |
1.56022 |
|
n184 |
184.95 |
1.57497 |
|
nd=1.45843 |
Vd=67.83 |
nf-nc=0.00676 |
|
ne=1.46004 |
Ve=67.68 |
nf’-nc’=0.00680 |
Physical and mechanical properties
|
Density |
2.20±0.02g/cm3 |
bulk modulus |
36GPa |
|
Yong’s modulus |
82GPa |
Shear modulus |
25GPa |
|
Compressive strength |
1250N/mm2 |
Bending strength |
80-100N/mm2 |
|
Poisson’s ratio |
0.17 |
Knoop HK 0.1/20 |
580 |
|
MoHS |
5-6 |
Stress optical coefficient(1/Pa) |
3.4×10-12 |
|
Longitudinal ultrasonic velocity (m/s) |
5940 |
Transversal |
3770 |
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