General
Property | Value |
---|---|
Density | 2.31 g/cm³ Show Supplier Material materials with Density of 2.31 g/cm³ |
Mechanical
Thermal
Property | Temperature | Value | Testing Standard | Comment |
---|---|---|---|---|
Annealing temperature | 515.0 °C Show Supplier Material materials with Annealing temperature of 515.0 °C | ISO 7884-4 | Viscosity 10¹³ dPa·s | |
Coefficient of thermal expansion | 5.1e-06 1/K Show Supplier Material materials with Coefficient of thermal expansion of 5.1e-06 1/K | ISO 7991 | mean value for 20-300 °C | |
Glass transition temperature | 505 °C Show Supplier Material materials with Glass transition temperature of 505 °C | ISO 7884-8 | ||
Softening temperature | 720.0 °C Show Supplier Material materials with Softening temperature of 720.0 °C | ISO 7884-3 | Viscosity 10⁷·⁶ dPa·s | |
Specific electrical resistance temperature | 215.0 °C Show Supplier Material materials with Specific electrical resistance temperature of 215.0 °C | For ρ=10⁸ Ω·cm | ||
Thermal conductivity | 90 °C | 1.2 W/(m·K) Show Supplier Material materials with Thermal conductivity of 1.2 W/(m·K) | ||
Working temperature | 1040.0 °C Show Supplier Material materials with Working temperature of 1040.0 °C | ISO 7884-2 | Viscosity 10⁴ dPa·s |
Electrical
Property | Temperature | Value | Frequency |
---|---|---|---|
Dielectric constant | 5.7 [-] Show Supplier Material materials with Dielectric constant of 5.7 [-] | 1MHz | |
Electrical resistivity | 250 °C | 251189 Ω·m Show Supplier Material materials with Electrical resistivity of 251189 Ω·m | |
350 °C | 7943 Ω·m Show Supplier Material materials with Electrical resistivity of 7943 Ω·m | ||
Loss tangent | 0.0008 [-] Show Supplier Material materials with Loss tangent of 0.0008 [-] | 1MHz |
Optical
Property | Value | Testing Standard | Comment |
---|---|---|---|
Refractive index | 1.5 [-] Show Supplier Material materials with Refractive index of 1.5 [-] | at λ=587.6 nm | |
Stress optical coefficient | 3.8e-06 mm²/N Show Supplier Material materials with Stress optical coefficient of 3.8e-06 mm²/N | DIN 52314 |
Chemical properties
Property | ||
---|---|---|
Other | 0.01 % | max., Lead, Cadmium, Mercury and Hexavalent Chromium |
Technological properties
Property | ||
---|---|---|
Application areas | Signal intensifier, detector and (fibre-) optics (Transmitter, X-ray tubes, Video-frequency tubes, Photomultiplier tubes), Sensors, Lasers. | |
Corrosion properties | Hydrolytic resistance Class HGB3 (ISO 719) - Acid resistance Class S4 (DIN 12116) - Alkali resistance Class A3 (ISO695) |