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Heatsink Material.
Source: | Author:guangshanen | Published time: 2017-04-18 | 1806 Views | Share:
Heatsink material refers to the specific material used by the heat sink. The thermal conductivity of each material is different, according to the thermal conductivity from high to low, respectively, silver, copper, aluminum, steel.......
Heatsink material refers to the specific material used by the heat sink. The thermal conductivity of each material is different, according to the thermal conductivity from high to low, respectively, silver, copper, aluminum, steel. However, if the use of silver for the heat sink is too expensive, so the best solution for the use of copper. 

Although aluminum is much cheaper, it is clear that the heat conductivity is not as good as copper (about 50% more than copper). The commonly used heat sink material is copper and aluminum alloy, each has its advantages and disadvantages. Copper heat conduction is good, but the price is more expensive, processing difficulty is high, the weight is too big (many pure copper radiator all surpasses the CPU to the weight limit), the heat capacity is small, moreover is easy to oxidize.

And pure aluminum is too soft, can not be used directly, are the use of aluminum alloy to provide sufficient hardness, the advantages of aluminum alloy is low price, light weight, but the thermal conductivity than copper will be much worse. Some radiators take the director, the aluminum alloy radiator base embedded in a copper plate. For ordinary users, the use of aluminum heatsink is enough to meet the cooling needs.