BOROFLOAT® Borosilicate Windows
Original price was: $21.50.$15.05Current price is: $15.05.
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BOROFLOAT® Borosilicate Windows are ideal for high temperature and harsh environment applications. Unlike common borosilicate that is drawn flat, BOROFLOAT® is produced by a float technique that yields superior surface flatness — typically 4 – 6λ per inch. BOROFLOAT® is about three times more resistant to thermal shock than standard soda lime glass.
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- Low Coefficient of Thermal Expansion
- Visible to Near Infrared Transmission
- High Resistance to Thermal Shock
| Abbe Number (vd) | 65.41 |
|---|---|
| Bevel | Protective as needed |
| Clear Aperture (%) | ≥90 |
| Coefficient of Thermal Expansion CTE (10-6/°C) | 3.25 (+20 to +300°C) |
| Density (g/cm3) | 2.23 |
| Index of Refraction nd | 1.472 |
| Knoop Hardness (kg/mm2) | 480 |
| Poisson's Ratio | 0.2 |
| Resistance to Temperature Difference (K) | Short Term, 1 hr: 110K1 – 100 hrs: 90KLong Term, >100 hrs: 80K |
| Substrate | BOROFLOAT® |
| Surface Flatness (P-V) | 4 – 6λ |
| Surface Quality | 80-50 |
| Thermal Shock (K) | Up to 4mm Thick: 175K4 – 6mm Thick: 160K6 – 15mm Thick: 150K |
| Transformation Temperature (°C) | 525 |
| Young's Modulus (GPa) | 64 |
| Type of Window | Glass |
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