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Copper tungsten

Copper tungsten heat sink

Copper tungsten heat sink Copper tungsten heat sink Copper tungsten heat sink

Tungsten copper heat sink is a composite of tungsten and copper. The coefficient of thermal expansion (CTE) of the composite can be designed by controlling the content of tungsten, matching that of the materials, such as Ceramics (Al2O3, BeO), Semiconductors (Si), Metals (Kovar), etc. The products are widely application in the fields such as radio frequency, microwave, high power diode packaging and optical communication system.

Advantages: High thermal conductivity, Excellent hermetic, Excellent size control, surface finish and flatness, Semi-finished or finished (Ni/Au plated) products available properties of WCu and MoCu heat materials

The data of copper tungsten heat sink

Ingredient Name

CAS Number

% Weight

Tungsten 7440-33-7 50-90
Copper 7440-50-8 10-50

 

Composition
(Wt%)

W 90%
Cu 10%

W 88%
Cu 12%

W 85%
Cu 15%

W 80%
Cu 20%

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

Related Links

Copper Molybdenum Heat Sinks
Property Data Sheet of Copper Tungsten Heat Sinks (PDF)

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