At room temperature, pure aluminium is a good electrical and thermal conductor. Pdf the thermal conductivity of 5056 aluminum alloy was determined from 4. Thermal conductivity 1 thermal conductivity in physics, thermal conductivity, is the, property of a materials ability to conduct heat. Here we can see some thermal properties of the alloy including the coefficient of thermal expansion and thermal conductivity. Pdf low temperature thermal conductivity of aluminum. Thermal conductivity is measured in watts per kelvinmeter wk. Aluminium alloys aluminium alloy 5052 contains nominally 2. It appears primarily in fouriers law for heat conduction. Thermal conductivity of selected materials nvlpubsnistgov. Electrical resistivity and thermal conductivity of pure aluminum. Pdf low temperature thermal conductivity of aluminum alloy 5056. The thermal and electrical conductivity of aluminum springerlink.
Investigation of effective thermal conductivity aluminum foams. This steady state method has been implemented in a cryostat having. Aluminum is often selected for its electrical conductivity, which is nearly twice that of copper on an equivalent weight basis. The thermal conductivity of aluminum and its alloys, which is 88 to. They are typical curves for a highpurity metal copper, high purity crystalline dielectric sapphire, nonferrous alloy aluminum alloy, ferrous alloy stainless steel. The thermal conductivity, electrical resistivity, and absolute seebeck coefficient of pure aluminum were determined from 80 to 400 k by measuring all three. The requirements of high conductivity and mechanical strength can be met by use of longline, highvoltage, aluminum steelcored reinforced transmission cable. In heat transfer, the thermal conductivity of a substance, k, is an intensive property that indicates. Only very limited thermal conductivity results of aluminum alloys have been published until now. Thermal conductivity of some selected gases, insulation products, aluminum, asphalt, brass, copper, steel and other common materials. Thermal conductivity of materials material thermal conductivity wmk diamond wmk copper 90400 wmk gold 290 wmk aluminium 50235 wmk steel low carbon 66 wmk boron nitride 39 wmk solder 2050 wmk stainless steel 20 wmk alumina 27 wmk mica 0. Predicting the thermal conductivity of aluminium alloys in. The thermal conductivity is defined by the time rate of transfer of heat by conduction, through unit thickness, across unit area for unit difference of temperature.
Thermal conductivity is a material property that describes ability to conduct heat. Thermal conductivity of aluminum, copper, iron, and. The thermal conductivity of aluminum alloys, about 50 to 60%. It also has the low density and excellent thermal conductivity common to all aluminium alloys. It has good workability, medium static strength, high fatigue strength, good weldability, and very good corrosion resistance, especially in marine atmospheres.