|
Synthetic: ES, ED
In the synthetic quartz materials a wide range of variations are currently offered to meet the specific needs of our customers. The synthetic materials are split up in a flame fused ES grade variations and the newly developed Vapor Axial Deposition (VAD) technology based ED grade material. Of particular interest may be the availability of the water free ED-C grade.
Development is still ongoing as major efforts are allocated to current development of our customers future needs. Feel free to contact us with any special inquiry and we will gladly advise you on the best material for your needs.
 Purity
| Element |
Al |
Ca |
Fe |
K |
Li |
Na |
Cu |
OH |
| ES |
0.1 |
0.1 |
0.05 |
0.05 |
0.05 |
0.05 |
0.01 |
1200 |
| Element |
Al, Ca, Fe, K, Li, Na, Cu, Mg, Ti, Cr, Ni, Co, Zn |
OH(ppm) |
| ED-A |
<10ppb |
100 |
| ED-B |
<10 |
| ED-C |
<1 |
| ED-H |
50 |
Viscosity
| Type |
ES |
ED-A |
ED-B |
ED-H |
Strain Point
Logn (Pa·Sec) =13.5 |
970°C |
1,050°C |
1,110°C |
1,060°C |
Annealing Point
Logn (Pa·Sec) =12.0 |
1,080°C |
1,150°C |
1,200°C |
1,170°C |
Optical Properties
| Grade |
ES |
ED-A |
ED-B |
ED-C |
ED-H |
| Wave Length (nm) |
180-2,000 |
170-2,000 |
260-3,600 |
180-3,600 |
170-2,000 |
| Transmission |
>80% |
>80% |
>80% |
>80% |
<80% |
Density: 2.201-2.203 g/cm3
Refractive Index
| Wave Length (nm) |
ES |
ED-A |
ED-B |
ED-C |
ED-H |
| 248 (KrF Laser) |
1.508609 |
1.508765 |
1.508824 |
1.508609 |
1.508751 |
| 365.0153 (i Line) |
1.474579 |
1.474733 |
1.474791 |
1.474579 |
1.474791 |
| 435.8328 (g Line) |
1.466730 |
1.466880 |
1.466936 |
1.466730 |
1.466936 |
| 632.8165 (He-Ne Laser) |
1.457055 |
1.457208 |
1.457267 |
1.457055 |
1.457267 | |