Tungsten Copper Material

Tungsten copper is a type of metal composite material that combines the low thermal expansion of tungsten with the high thermal and electrical conductivity of copper. Moreover, its material properties can be tailored through composition design to meet specific requirements. Tungsten copper materials can establish favorable thermal expansion coefficient matching with ceramics, composites, semiconductor materials, and others. This makes them commonly employed in the electronic package and heat dissipation materials for radiofrequency and microwave applications, power semiconductor devices, as well as optical communication devices.

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Product Introduction

Tungsten copper is a type of metal composite material that combines the low thermal expansion of tungsten with the high thermal and electrical conductivity of copper. Moreover, its material properties can be tailored through composition design to meet specific requirements. Tungsten copper materials can establish favorable thermal expansion coefficient matching with ceramics, composites, semiconductor materials, and others. This makes them commonly employed in the electronic package and heat dissipation materials for radiofrequency and microwave applications, power semiconductor devices, as well as optical communication devices.

 

Feature Of Product

1、No sintering activation elements such as Fe and Co are added to maintain high thermal conductivity

2、Excellent air tightness

3、Supplying semi-finished products or surfaces coated with nickel (Ni), palladium (Pd), gold (Au), silver (Ag), copper (Cu), and other coatings

4、Good size control, surface finish and flatness

 

Tungsten Copper Material Properties

Material

Product

Name

Component

Average linear
expansion coefficient

[ppm/K]

Room temperature~400℃

Thermal
conductivity

[W/(m·k)]

Mass Density

[g/cm3

Relative
Density

[%T.D.]

W-Cu

W90

W90Cu10

6.0 ~7.0

≥170

17.0±0.3

≥99

W88

W88Cu12

6.1 ~7.1

≥175

16.9±0.3

≥99

W87

W87Cu13

6.2 ~7.2

≥180

16.7±0.3

≥99

W85

W85Cu15

6.4 ~7.4

≥190

16.4±0.3

≥99

W83

W83Cu17

6.6 ~7.6

≥200

16.1±0.3

≥99

W80

W80Cu20

7.4 ~8.9

≥210

15.6±0.3

≥99

W75

W75Cu25

9.3~10.2

≥215

14.98±0.3

≥99

W70

W70Cu30

9.3~10.2

≥220

14.3±0.3

≥99

W50

W50Cu50

11.5~13.0

≥240

12.2±0.3

≥99

W90L

W90Cu10L

6.1 ~7.1

≥180

16.8±0.3

≥99

W85L

W85Cu15L

6.4 ~7.4

≥200

15.4±0.2

≥99

 

W80L

W80Cu20L

7.4 ~8.9

≥220

15.4±0.3

≥99

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