Material Introduction
Molybdenum Copper
Material Introduction
Tungsten copper alloys are composed of molybdenum and copper. Commonly used alloys contain 10% to 60% copper. Combining the advantages of both molybdenum and copper, tungsten copper alloys can be used as military perspiration material and as microelectronic packaging material for aerospace, electronics and power applications.
We can produce molybdenum-copper alloy materials to any ratio, while the required properties of the alloy can be obtained by adjusting the ratio of molybdenum and copper.
Specifications and Performance
Typical properties of molybdenum-copper composite materials
|
Grade |
Chemical composition (weight %) |
Thermal expansion coefficient |
Thermal conductivity |
||
|
Cu |
Total Impurities |
Mo |
Room temperature～800℃ ×10-6/K ≤/K-1 |
Room temperature W/m ▪ K ≥ |
|
|
Mo40Cu60 |
60±2.0 |
≤0.5 |
Margin |
≤13.5 |
≥235 |
|
Mo45Cu55 |
55±2.0 |
≤0.5 |
Margin |
≤12.5 |
≥225 |
|
Mo50Cu50 |
50±2.0 |
≤0.5 |
Margin |
≤11.5 |
≥220 |
|
Mo55Cu45 |
45±2.0 |
≤0.5 |
Margin |
≤11.0 |
≥215 |
|
Mo60Cu40 |
40±2.0 |
≤0.5 |
Margin |
≤10.2 |
≥205 |
|
Mo65Cu35 |
35±2.0 |
≤0.5 |
Margin |
≤9.3 |
≥195 |
|
Mo70Cu30 |
30±2.0 |
≤0.5 |
Margin |
≤8.7 |
≥185 |
|
Mo75Cu25 |
25±2.0 |
≤0.5 |
Margin |
≤8.0 |
≥180 |
|
Mo80Cu20 |
20±2.0 |
≤0.5 |
Margin |
≤7.5 |
≥170 |
|
Mo85Cu15 |
15±2.0 |
≤0.5 |
Margin |
≤7.0 |
≥160 |
|
Mo90Cu10 |
10±2.0 |
≤0.5 |
Margin |
≤6.5 |
≥155 |
Fabrication Process
Metal powder - mixing - pressing - sintering - copper infiltration - (rolling) - processing
Advantage
Molybdenum-copper alloys feature the positive characteristics of both molybdenum and copper, including high thermal conductivity, low adjustable thermal expansion coefficient, non-magnetic, low gas content, good vacuum performance, good machinability and outstanding high temperature performance. Compared with tungsten copper, molybdenum copper alloys have the advantages of small mass combined with easy processing, rolling and stamping. Their linear expansion coefficient, thermal conductivity and key mechanical properties are equivalent to tungsten copper, offering even better application prospects.
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