Molybdenum Copper & Tungsten Copper Comparison
Molybdenum higher than the melting point of tungsten, molybdenum density than large, so tungsten-copper alloy is more suitable for higher temperatures, can be applied as a high-density material. The relatively low density of molybdenum due, so using molybdenum-copper alloy can reduce part weight, which for the aerospace and instrumentation requirements as lightweight when favorable.
Table 1 molybdenum-copper alloy, tungsten copper alloy thermal conductivity
Material | Thermal conductivity/×102W·(m·℃)-1 |
OFC | 3.94 |
WCu20 | 2.09 |
WCu10 | 1.84 |
MoCu22 | 1.67 |
MoCu10 | 1.34 |
Table 2 molybdenum-copper alloy, tungsten copper alloy thermal expansion coefficient
Material | Coefficient of thermal expansion/×10-6·℃-1 20-100℃ |
Material | Coefficient of thermal expansion/×10-6·℃-1 20-100℃ |
WCu7 | 5.43 | MoCu10 | 5.40 |
WCu10 | 6.50 | MoCu18 | 7.49 |
WCu15 | 7.20 | MoCu25 | 8.30 |
WCu20 | 8.20 |
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