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Copper molybdenum

Copper molybdenum heat sink

Copper molybdenum heat sink

Copper molybdenum heat sinks introduce

Copper molybdenum composites to be used extensively in thermal mounting plates, chip carriers, flanges, and frames for high-powered electronic devices. With the thermal advantages of copper with the very low expansion characteristics of molybdenum, molybdenum copper has properties similar to those of silicone carbide, aluminum oxide, and beryllium oxide. The thermal conductivity and low expansion also make molybdenum copper alloy an excellent choice even for extremely dense circuits.

Copper molybdenum high performance composites are fabricated from carefully controlled porous Molybdenum that is vacuum infiltrated with molten copper. This results in a MoCu composite that has high conductivity and a matched low thermal expansion for heat sinks.

The data of copper molybdenum heat sinks

Ingredients Name

CAS Number

% Weight

Molybdenum 7439-98-7 50-85
Copper 7440-50-8 15-50

 

Composition
(Wt%)

Mo 85%
Cu 15%

Mo 70%
Cu 30%

Mo 50%
Cu 50%

Density
(g/cm3)
10.0 9.6 9.5
Coefficient of Thermal Expansion
(10-6/K)
6.3 7.5 9.8
Thermal Conductivity
(W/mK)
160 190 245
Specific Heat Capacity
(J/kgK)
275 300 320
Young’s Modulus
(Gpa)
275 220 170
Specific Electrical Resistance
(uΩm)
0.044 0.035 0.027
Vickers Hardness
(HV10)
235 175 145
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