There are two types of thermal contact resistance at the interface of two solids. One of them is due to the constriction of heat flow lines at the interface, commonly known as thermal contact resistance. The other type of constriction resistance is microscopic in nature. If the characteristic dimension of the constriction becomes comparable to the mean free path of the heat carriers then there is a ballistic component to the constriction resistance. For different materials on the two sides, thermal boundary resistance due to acoustic mismatch becomes important. In this paper a unified model is developed which accounts for both microscopic and macroscopic contact resistances.
BT - ASME 2006 International Mechanical Engineering Congress and Exposition DA - 01/2006 DO - 10.1115/IMECE2006-15590 LA - eng N2 -There are two types of thermal contact resistance at the interface of two solids. One of them is due to the constriction of heat flow lines at the interface, commonly known as thermal contact resistance. The other type of constriction resistance is microscopic in nature. If the characteristic dimension of the constriction becomes comparable to the mean free path of the heat carriers then there is a ballistic component to the constriction resistance. For different materials on the two sides, thermal boundary resistance due to acoustic mismatch becomes important. In this paper a unified model is developed which accounts for both microscopic and macroscopic contact resistances.
PB - American Society of Mechanical Engineers PY - 2006 EP - 525–533 T2 - ASME 2006 International Mechanical Engineering Congress and Exposition T3 - ASME 2006 International Mechanical Engineering Congress and Exposition TI - A Unified Microscopic and Macroscopic Thermal Contact Resistance Model ER -