Tungsten-copper alloys are pseudo-alloys of copper and the refractory metal tungsten. Since copper and tungsten are immiscible, the material consists of different particles of one metal dispersed in a matrix of another metal. As a result, the microstructure is a metal matrix composite rather than a true alloy.
It combines the properties of two metals to form a material that is heat, ablation resistant, highly thermally and electrically conductive, and easy to process. It is also resistant to arc corrosion, mechanical wear and contact welding. Parts are made from tungsten copper alloy by pressing tungsten particles into the desired shape, sintering the compacted part, and finally infiltrating it with molten copper.
Common grades of this alloy contain 5% copper to 50% copper with tungsten in balance. The typical properties of an alloy depend on its composition. Alloys with less copper have higher density, higher hardness, and higher resistivity. Typical densities are 17.3 g/cm3 for WCu10 alloy and 12.2 g/cm3 for WCu50 alloy. WCu10 alloy has higher hardness and resistivity than WCu50 alloy of 260 HB kgf/mm2 and 6.5 µΩ.cm.
What is tungsten copper foil (WCu foil)?
WCu foil is actually a tungsten copper sheet with thickness from 0.05mm to 1.0mm, width from 10mm to 300mm, and tungsten content from 50% to 10%. As a professional tungsten and molybdenum manufacturer, Chinatungsten Online/CTIA GROUP LED can manufacture alloy foils to unprecedented flatness, and our precision machining methods can achieve high-precision tolerances.
This material of copper-tungsten alloy can produce a dense metal with excellent electrical and thermal conductivity. Tungsten copper alloy foil can withstand extreme temperatures and harsh environments and its good ductility makes it easy to laminate with other materials. The surface is very clean and flat, and it is rough on one side, which makes it easier to stick to other materials.
We are a leading manufacturer and supplier of tungsten copper plates, sheets and foils. One source, superior quality and expertise to meet the growing demand for high performance high temperature materials.
