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Thermal interface materials have been widely used to improve the heat transfer efficiency. The heat generated by devices is transmitted to the metal radiator through its surface, and dissipates the heat into the air through the radiator. But the surface of the components is usually plastic, ceramic or metal, they are not completely flat (the surface of the radiator is not completely flat). If the components direct contact with the radiator, there will be a gap in the middle,the air will remain in the space, and the actual contact surface will be reduced, so the heat cannot be conducted effectively. The softness of Tim material enables to fill the gap and help heat conduction effectively.
Q=kA∆T/d (1)
K=导热系数 Thermal conductivity, W/m.k
Q=热流速率 Heat flow rate, W
A=接触面积 Contact area, ㎡
△T=温度差 Temperature variation, k