Copper Molybdenum Copper Material

Copper/molybdenum/copper (CMC) is a composite material with a core made of metal molybdenum and coated on both sides with pure copper, forming a "sandwich" structure. CMC can be characterized as a material with adjustable properties based on the thickness ratio of copper and molybdenum metals. It exhibits high thermal conductivity, high strength, and a low coefficient of thermal expansion.This material finds applications as a heat sink and heat dissipation base for components such as radiofrequency tube casings and multilayer ceramics.

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Product Introduction

Copper/molybdenum/copper (CMC) is a composite material with a core made of metal molybdenum and coated on both sides with pure copper, forming a "sandwich" structure. CMC can be characterized as a material with adjustable properties based on the thickness ratio of copper and molybdenum metals. It exhibits high thermal conductivity, high strength, and a low coefficient of thermal expansion.This material finds applications as a heat sink and heat dissipation base for components such as radiofrequency tube casings and multilayer ceramics.

 

Feature Of Product

1、Large area plates can be provided (length 400mm, width 200mm)

2、Can be punched into parts to reduce costs

3、High interface bonding strength and good thermal shock cycling resistance

4、Adjustable coefficient of thermal expansion to match the requirements of different materials such as semiconductors and ceramics

5、High thermal conductivity

6、Non-magnetic

 

Copper/molybdenum/copper Material Properties

Material

Product
Name

Component

Average linear expansion
coefficient in the plane direction

[ppm/K]

Room temperature~400℃

Thermal conductivity in
the thickness direction

[W/(m·k)]

Mass Density

[g/cm3

CMC

CMC111

Cu/Mo/Cu

8.8±0.5

>200

9.4±0.2

CMC121

7.8±0.5

>190

9.6±0.2

CMC131

6.8±0.5

>180

9.7±0.2

CMC141

6.0±0.5

>170

9.8±0.2

CMC-74

5.6±0.5

>160

9.9±0.2

CMC111 represents a Cu/Mo/Cu thickness ratio of 1:1:1, CMC-74 represents a Cu/Mo/Cu thickness ratio of 13:74:13

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