Squares, rectangles and discs of non-standard sizes available to special order.
| 订货号 |
包装规格 |
| Disc |
| 807-833-98 |
20mm |
半岛bd体育手机客户端 参数
| Diameter[直径] |
20mm |
| Orientation[定向/导向] |
Not Identified |
| Polish[抛光] |
0.05 - 0.1μm Ra |
| Surface Finish[表面光洁度] |
Polished On Both Sides |
| Thickness[厚度] |
2mm |
| Type[类型] |
Single Crystal |
| Pultrusion(挤拉成型) |
| Compressive strength ( MPa ) |
2100 |
| Mechanical Properties(机械性能) |
| Hardness - Knoop ( kgf mm?? ) |
2000 |
| Hardness - Vickers ( kgf mm?? ) |
1600 - 1800 |
| Tensile modulus ( GPa ) |
350.00 - 390.00 |
| Tensile strength ( MPa ) |
250.00 - 400.00 |
| Thermal Properties(热性能) |
| Coefficient of thermal expansion ( x10?? K?? ) |
5.800 @20-1000℃ |
| Melting point ( C ) |
2050.00 |
| Specific heat ( J K?? kg?? ) |
750.0 @25℃ |
| Thermal conductivity ( W m?? K?? ) |
35.00 - 40.00 @20℃ |
| Upper continuous use temperature ( C ) |
1800 - 1950 |
| Chemical Resistance(耐化学性) |
| Acids - concentrated |
Good |
| Acids - dilute |
Good |
| Alkalis |
Good |
| Halogens |
Good |
| Metals |
Good |
| Physical Properties(物理性质) |
| Apparent porosity ( % ) |
0.00 |
| Density ( g cm?? ) |
3.985 |
| Refractive index |
1.710-1.790 |
| Useful optical transmission range |
200 - 5500 nm |
| Electrical Properties(电气特性) |
| Dielectric constant |
7.5 - 11.5 |
| Dielectric strength ( kV mm?? ) |
15.0 - 50.0 |
| Volume resistivity ( Ohmcm ) |
>10??@25℃ |
其他参数
公差
| 长度 |
<100mm |
±1mm |
| ≥100mm |
+2% / -1% |
| 直径 |
<100mm |
±1mm |
| ≥100mm |
+2% / -1% |
| 厚度 |
|
±10% |
| 陶瓷 |
±20% |
| 复合材料 |
±20% |
| 聚合物 |
±20% |
| 长度 1 |
<100mm |
±1mm |
| ≥100mm |
+2% / -1% |
| 长度 2 |
<100mm |
±1mm |
| ≥100mm |
+2% / -1% |
