Thickness[厚度] | 1mm |
Type[类型] | Single Crystal |
Mechanical Properties(机械性能) |
Hardness - Knoop ( kgf mm⁻² ) | 2000 |
Hardness - Vickers ( kgf mm⁻² ) | 2500 - 3000 |
Tensile modulus ( GPa ) | 350.00 - 390.00 |
Tensile strength ( MPa ) | 250.00 - 400.00 |
Physical Properties(物理性质) |
Apparent porosity ( % ) | 0.00 |
Density ( g cm⁻³ ) | 3.980 |
Useful optical transmission range | 150 - 5500 nm |
Pultrusion(挤拉成型) |
Compressive strength ( MPa ) | 2100 |
Electrical Properties(电气特性) |
Dielectric constant | 7.5 - 11.5 |
Dielectric strength ( kV mm⁻¹ ) | 15.0 - 50.0 |
Volume resistivity ( Ohmcm ) | 10¹⁴@25℃ |
Chemical Resistance(耐化学性) |
Acids - concentrated | Good |
Acids - dilute | Good |
Alkalis | Good |
Halogens | Good |
Metals | Good |
Thermal Properties(热性能) |
Coefficient of thermal expansion ( x10⁻⁶ K⁻¹ ) | 5.800 @20-1000℃ |
Melting point ( C ) | 2050.00 |
Specific heat ( J K⁻¹ kg⁻¹ ) | 750.0 @25℃ |
Thermal conductivity ( W m⁻¹ K⁻¹ ) | 35.00 - 40.00 @20℃ |
Upper continuous use temperature ( C ) | 1800 - 1950 |