However the performance difference increased to 25 30 as the flow rate increased table 3.
Aluminum graphite heat sink.
Our products are also impressive thanks to their low coefficients of thermal expansion and low density.
It s not as conductive as copper but it s close with a thermal conductivity of 370 w mk.
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The graphite fins are bonded to the base with thermally conductive epoxy keeping the heat sink.
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The graphite heat sink s thermal performance was only 12 lower than aluminum at low flow rates.
But the real advantage of graphite is its weight it weighs just 70 percent of the weight of aluminum.
Schunk aluminium graphite products can be used in various markets including transportation industry and communications technology.
Heat sinks made of aluminium graphite the thermal properties and ability to manufacture components with a wide variety of different geometries make aluminium graphite an outstanding material for conducting heat.
A wide variety of graphite heat sink options are available to you such as bending cutting and punching.
This material is being used today as a fin material in combination with an aluminum or copper base to make hybrid heatsinks.
Parts made of aluminium graphite effectively remove heat from hot spots and reduce mechanical tension within the assemblies.
Yet the literature is void of true comparison of these materials against copper and aluminum.
Another material that s gaining popularity with heat sink producers is a natural graphite composite material.
The fins of the heat sink are made from graphite while the base is still either copper or aluminum.
This leads to an improvement in the overall reliability of the electronic system.
This behavior is evident in the table below and when comparing the different heat sink materials.