€59.50
Borosilicate glass substrates have better thermal shock resistance, high material strength, and strong chemical stability while keeping >90% transmissivity in the visible light spectrum.
We currently store 100mmx100mx2mm substrates. For other sizes and thicknesses or high volume demands, please contact us.
Borosilicate glass is chemically resistant, has a low thermal expansion coefficient, and can be used at relatively high temperatures.
Its main benefits are:
The typical composition contains SiO2 (approx. 80 %), 13 % B2O3 and others (Na2O / K2O, Al2O3)
Our Borosilicate substrates come in a 100mmx100mm square format. We currently stock 2mm thick plates but other thicknesses are available on request. Please contact us.
Borosilicate properties
| Property | Items | Unit | SiO2 (approx. 80 %), B2O3 |
|---|---|---|---|
| Physical / Optical | Color | - | Transparent |
| Material - SiO2 | % | ~80% | |
| Water absorption | % | 0 | |
| Optical Transmission @ wavelength | - | >90% @ 310 tot 2200 nm | |
| Refractive Index | n | 1.47 | |
| Electrical | Dielectric Constant | e | 4.6 |
| Dielectric Loss | 3.7 | ||
| Dielectric strength | MV/m or KV/mm | 30 | |
| Mechanical | Density after Sintering (Bulk density) | g/cm3 | 2,23 |
| Flexural Strength (Bending) | Mpa | 120-160 | |
| Young’s Modulus | Gpa | ~63 | |
| Poissons ratio | 0.2 | ||
| Thermal | Coefficient of Thermal Expansion (CTE) | ppm/°C | ～3,3 |
| Transformation (Tg) | °C | 525 | |
| Thermal Conductivity (25°C) | W/m‧K | ～1.4 |
| Dimensions | N/A |
|---|---|
| Size | 100x100mm / 3.9"x3.9" |
| Thickness | 2mm / 0.079" |
