radiator

It can be seen that silver and copper are the best heat conductors, followed by gold and aluminum. But gold and silver are too expensive, so heat sinks are mainly made of aluminum and copper. But because of the high density of copper, the process is complex, the price is more expensive, so usually the fan is made of lighter aluminum, of course, for the air-cooled radiator, when considering the material in addition to the heat conduction coefficient, but also must consider the heat capacity of the radiator, comprehensive these two parameters, the advantages of aluminum is reflected. However, this article only discusses the heat conduction aspects, which we will discuss in detail in the next section.

In order to improve the heat conduction capacity of the radiator base, the selection of materials with high heat conduction coefficient is on the one hand, but on the other hand, it is also necessary to solve the tight degree of combination of heat sources such as CPU and the radiator base. According to the law of heat conduction, under the premise of a fixed material, the conductivity is proportional to the contact area and inversely proportional to the contact distance. The larger the area of contact, the faster the heat can be dissipated, but the CPU has a fixed Die, so the binding distance is more important.