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The high-purity synthetic quartz glass features superior UV transmittance, excellent optical uniformity, no bubbles, and customizable dimensions, making it preferable materials of window, lens, prism, and glass substrate in various fields of precision optics.
| Type | Bubbles and Inclusions | Optic uniformity | Hydroxyl content | Residual strain | Applications | |
| The bubble grade is given for every 100 cm3 | ||||||
| DIN ISO 10110 | Stria | PV value | ppm (μg/g) | nm/cm | ||
| ZKTD-Z31 | 1/2x0.01; no bubbles or inclusions>0.01 (mm) | -- | < 5x10-5 | ~1000 | < 10 | Industrial, Small diameter basic optical applications |
| ZKTD-Z32 | 1/2x0.01; no bubbles or inclusions>0.01 (mm) | No striae in functional direction | < 2x10-5 | ~1000 | < 10 | transmitting, reflective optical applications |
| ZKTD-Z33 | 1/2x0.01; no bubbles or inclusions>0.01 (mm) | No striae in functional direction | < 3x10-6 | ~1000 | < 5 | UV application, wafer substrate |
| ZKTD-Z34 | 1/2x0.01; no bubbles or inclusions>0.01 (mm) | 3D material No striae in all directions | < 2x10-6 | ~1000 | < 5 | Lens, prisms, optical structures, swing sensor |
| ZKTD-Z35 | 1/2x0.01; no bubbles or inclusions>0.01 (mm) | 3D material No striae in all directions | < 2x10-6 | < 600 | < 5 | Leading edge semiconductor applications, high-power laser |
| Type | Bubbles and Inclusions | Optic uniformity | Hydroxyl content | Residual strain | Applications | |
| The bubble grade is given for every 100 cm3 | ||||||
| DIN ISO 10110 | Stria | PV value | ppm (μg/g) | nm/cm | ||
| ZKTD-Z31 | 1/2x0.01; no bubbles or inclusions>0.01 (mm) | -- | < 5x10-5 | ~1000 | < 10 | Industrial, small diameter basic optical applications |
| ZKTD-Z32 | 1/2x0.01; no bubbles or inclusions>0.01 (mm) | No striae in functional direction | < 2x10-5 | ~1000 | < 10 | Transmitting, reflective optical applications |
| ZKTD-Z33 | 1/2x0.01; no bubbles or inclusions>0.01 (mm) | No striae in functional direction | < 3x10-6 | ~1000 | < 5 | UV application, wafer substrate |
| ZKTD-Z34 | 1/2x0.01; no bubbles or inclusions>0.01 (mm) | 3D material No striae in all directions | < 2x10-6 | ~1000 | < 5 | Lens, prisms, optical structures, swing sensor |
| ZKTD-Z35 | 1/2x0.01; no bubbles or inclusions>0.01 (mm) | 3D material No striae in all directions | < 2x10-6 | < 600 | < 5 | Leading edge semiconductor applications, high-power laser |
| Mechanical Data | ZKTD-Z32~34 |
| Density (g/cm3) | 2.201 |
| Modulus of elasticity (MPa) | 7.25x104 |
| Poisson's ratio | 0.17 |
| Compressive strength (MPa) | 1150 |
| Tensile strength (MPa) | 50 |
| Bending strength (MPa) | 67 |
| Mohs hardness | 5.5~6.5 |
| Micro hardness | 8000~9000 |
| Abbe constant | ZKTD-Z |
| Vd=(nd – 1)(nF – nC) | 67.7±0.6 |
| Dispersion constants (Sellmeier) | |
| B1 | 4,73115591x10-1 |
| B2 | 6,31038719x10-1 |
| B3 | 9,06404498x10-1 |
| C1 | 1,29957170x10-2 |
| C2 | 4,12809220x10-3 |
| C3 | 9,87685322x10-1 |
| Dielectric constant (ε) | 0-106Hz | 3x1010Hz | |
| 3.7 | 3.81 | ||
| Dielectric strength in kV/cm | 20°C | 500°C | |
| 250-400 | 40-50 | ||
| Dielectric loss angle (tg δ) | 1KHz | 1MHz-109Hz | 3x1010Hz |
| < 5x10-4 | < 1x10-4 | < 4x10-4 | |
| Resistivity in Ω·cm | 20°C | 100°C | 400°C |
| 1x1018 | 1x1016 | 1x1010 | |
| Resistivity in Ω·cm | 800°C | 1000°C | 1200°C |
| 6.3x106 | 1x106 | 1.3x105 | |
(Black ZKTD-Z35 Thickness: 1mm; Red ZKTD-Z35 Thickness: 10mm; Blue ZKTD-Z34 Thickness:10mm)
Chemical Composition of High-Purity Quartz| Element | Al | Fe | Ca | Mg | Ti | Ni | Mn | Cu | Li | Na | K | Co | B | Total |
| ppm | ~0.3 | ~0.01 | ~0.02 | ~0.01 | ~0.01 | ~0.01 | ~0.07 | ~0.01 | ~0.10 | ~0.30 | ~0.03 | ~0.02 | ~0.10 | ~1.00 |
| 22C | ||||
| Nc | Nd | Nf | N351 | N1053 |
| 1.45659 | 1.45871 | 1.46340 | 1.47932 | 1.45328 |
| Vd=67.8091716 | ||||
| Wave-length | Refractive index | Wave-length | Refractive index | Wave-length | Refractive index | Wave-length | Refractive index |
| 0.170 | 1.615 | 0.590 | 1.459 | 1.200 | 1.448 | 2.400 | 1.432 |
| 0.185 | 1.575 | 0.656 | 1.457 | 1.300 | 1.447 | 2.500 | 1.430 |
| 0.200 | 1.550 | 0.700 | 1.456 | 1.400 | 1.448 | 2.600 | 1.428 |
| 0.214 | 1.534 | 0.766 | 1.541 | 1.500 | 1.445 | 2.700 | 1.426 |
| 0.254 | 1.505 | 0.800 | 1.454 | 1.600 | 1.444 | 2.800 | 1.424 |
| 0.280 | 1.494 | 0.863 | 1.452 | 1.700 | 1.442 | 2.900 | 1.422 |
| 0.312 | 1.487 | 0.900 | 1.452 | 1.800 | 1.441 | 3.000 | 1.420 |
| 0.365 | 1.475 | 0.950 | 1.452 | 1.900 | 1.440 | 3.100 | 1.417 |
| 0.405 | 1.470 | 1.000 | 1.451 | 2.000 | 1.438 | 3.200 | 1.415 |
| 0.434 | 1.467 | 1.050 | 1.450 | 2.100 | 1.437 | 3.300 | 1.412 |
| 0.486 | 1.465 | 1.100 | 1.449 | 2.200 | 1.435 | 3.400 | 1.410 |
| 0.546 | 1.460 | 1.150 | 1.449 | 2.300 | 1.434 | 3.500 | 1.406 |
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