Tungsten copper alloy sheet also call copper tungsten alloy sheet, it have very high conductivity provide by tungsten and copper. These tungsten copper sheets have the ability to spread the heat from a concentrated heat source and then dissipate the heat through the layers. They offer an economical solution to many applications, and available in several standard ratios and many thicknesses for tailored TE machining. They are lower weight than WCu composite materials and available in larger and thinner sheet size, at the same time, tungsten copper sheet can be machined by EDM.
WCu composites are made by infiltrating, under vacuum, uniform controlled porous blocks of tungsten with molten copper. This result in a material with an interconnected copper matrix that has high thermal conductivity in all axis, low thermal expansion, and good electrical conductivity, Copper content can range between 10% and 25%.
Our tungsten copper 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 tungsten, tungsten copper has properties similar to those of silicone carbide, aluminum oxide, and beryllium oxide. The thermal conductivity and low expansion also make tungsten copper alloy an excellent choice even for extremely dense circuits.The CuW75 tungsten copper alloy is used extensively in thermal mounting plates, chip carriers.
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