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Schott ROBAX® Glass Ceramic
| Category | Ceramic , Glass , Glass Ceramic , Optical |
| Manufacturer | Schott North America |
| Trade Name | |
| Port | Ningbo port,China |
| Trade Terms | FOB, CFR, CIF |
| Payment Terms | L/C, T/T, Western Union |
| Download PDF | Schott ROBAX® Glass Ceramic.pdf  |
| Price | EMAIL US sales@lookpolymers.com |
Material Notes:
ROBAX® is a highly transparent glass-ceramic having virtually zero thermal expansion and sufficient mechanical resistance required for all standard applications. It is produced in flat, rolled sheets.As a result of its extremely low thermal expansion, ROBAX® can be subjected to extreme temperature differences. Even when used in high temperature conditions, ROBAX® maintains excellent stability of form. ROBAX® can be further processed mechanically using all of the normal methods of glass processing.Applications: ROBAX® possesses a high degree of resistance against thermal stresses and chemical surface attacks. Its diverse range of applications include: chemical process sight glass, high temperature vision windows, heat insulators, commercial ovens/broilers, architectural and outdoor lighting, electronics and UV light wave blocking applications.Information provided by SCHOTT North America.
| Physical Properties | Metric | English | Comments |
|---|---|---|---|
| Density | 2.56 g/cc | 0.0925 lb/in³ |
| Mechanical Properties | Metric | English | Comments |
|---|---|---|---|
| Modulus of Elasticity | 92.0 GPa | 13300 ksi | |
| Poissons Ratio | 0.25 | 0.25 | |
| Shear Modulus | 36.8 GPa | 5340 ksi | Calculated |
| Thermal Properties | Metric | English | Comments |
|---|---|---|---|
| CTE, linear | -0.300 - 0.300 µm/m-°C @Temperature 20.0 - 700 °C |
-0.167 - 0.167 µin/in-°F @Temperature 68.0 - 1290 °F |
|
| Specific Heat Capacity | 0.800 J/g-°C @Temperature 20.0 - 100 °C |
0.191 BTU/lb-°F @Temperature 68.0 - 212 °F |
|
| Thermal Conductivity | 1.60 W/m-K @Temperature 90.0 °C |
11.1 BTU-in/hr-ft²-°F @Temperature 194 °F |
|
| Maximum Service Temperature, Air | 680 °C | 1260 °F | 100 to 10,000 hr, depends on temperature gradient |
| 760 °C | 1400 °F | <100 hr, depends on temperature gradient |
| Optical Properties | Metric | English | Comments |
|---|---|---|---|
| Transmission, Visible | 90 % | 90 % | transparent; thickness not quantified |
| Electrical Properties | Metric | English | Comments |
|---|---|---|---|
| Volume Resistivity | >= 250000 ohm-cm @Temperature 350 °C |
>= 250000 ohm-cm @Temperature 662 °F |
|
| >= 6.30e+6 ohm-cm @Temperature 250 °C |
>= 6.30e+6 ohm-cm @Temperature 482 °F |
||
| 1.00e+8 ohm-cm @Temperature 175 °C |
1.00e+8 ohm-cm @Temperature 347 °F |
||
| Dielectric Constant | 7.8 | 7.8 | |
| Dissipation Factor | 0.019 | 0.019 |
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