Abstract

Experiments are described in which heat was transferred through the interface between two solids which were brought into contact and separated cyclically. The results showed that, despite large variations in thermal contact resistance from one meeting of the contact surfaces to the next, earlier theoretical work could be used to predict, with reasonable accuracy, the average thermal resistance arising from periodic interruption of the heat flow at the contact interface. It was also found that a significant reduction in thermal resistance could be achieved by increasing the impact with which the surfaces made contact.

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