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Koperen wolfraam
Koperen wolfraam koellichaam
|
Ingredient Name |
CAS Number |
% Weight |
| Tungsten | 7440-33-7 | 50-90 |
| Copper | 7440-50-8 | 10-50 |
|
Composition |
W 90% |
W 88% |
W 85% |
W 80% |
| Density (g/cm3) |
17.0 | 16.6 | 16.4 | 15.5 |
| Coefficient of Thermal Expansion(10-6/K) |
5.6 | 5.7 | 5.8 | 7.0 |
| Thermal Conductivity (W/mK) |
180 | 188 | 196 | 220 |
| Specific Heat Capacity (J/kgK) |
155 | 165 | 175 | 190 |
| Young’s Modulus (Gpa) |
325 | 315 | 305 | 278 |
| Specific Electrical Resistance(uΩm) |
0.047 | 0.045 | 0.042 | 0.035 |
| Vickers Hardness (HV10) |
300 | 295 | 275 | 255 |