材料 >> 陶瓷
石英,熔融,? SiO, 23 mm直径, 2mm厙/div>
产品介绍
| 订货叶/strong> |
包装规格 |
| Disc |
| 581-408-51 |
23 mm |
产品参数
| Diameter[直径] |
23 mm |
| Surface Finish[表面光洁度] |
Polished On Both Sides |
| Thickness[厚度] |
2mm |
| Pultrusion(挤拉成型) |
| Compressive strength ( MPa ) |
1100 |
| Chemical Resistance(耐化学? |
| Acids - concentrated |
Good |
| Acids - dilute |
Good |
| Alkalis |
Fair |
| Halogens |
Good |
| Metals |
Fair |
| Physical Properties(物理性质) |
| Apparent porosity ( % ) |
0.00 |
| Density ( g cm?? ) |
2.200 |
| Refractive index |
1.460 |
| Useful optical transmission range |
180 - 2500 nm |
| Thermal Properties(热性能) |
| Coefficient of thermal expansion ( x10?? K?? ) |
0.540 @20-1000 |
| Melting point ( C ) |
1715.00 |
| Specific heat ( J K?? kg?? ) |
670.0 - 740.0 @25ℂ/td> |
| Thermal conductivity ( W m?? K?? ) |
1.46 @20ℂ/td> |
| Upper continuous use temperature ( C ) |
1100 - 1400 |
| Electrical Properties(电气特? |
| Dielectric constant |
3.8 |
| Dielectric strength ( kV mm?? ) |
25.0 - 40.0 |
| Volume resistivity ( Ohmcm ) |
10??@25ℂ/td> |
| Mechanical Properties(机械性能) |
| Hardness - Knoop ( kgf mm?? ) |
820 |
| Hardness - Vickers ( kgf mm?? ) |
1000 |
| Shear strength ( MPa ) |
70 |
| Tensile modulus ( GPa ) |
72.00 - 74.00 |
| Tensile strength ( MPa ) |
48.00 |
其他参数
公差
| 长度 |
<100mm |
1mm |
| ?00mm |
+2% / -1% |
| 直径 |
<100mm |
1mm |
| ?00mm |
+2% / -1% |
| 厚度 |
|
10% |
| 陶瓷 |
20% |
| 复合材料 |
20% |
| 聚合?/td> |
20% |
| 长度 1 |
<100mm |
1mm |
| ?00mm |
+2% / -1% |
| 长度 2 |
<100mm |
1mm |
| ?00mm |
+2% / -1% |
|
|
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