LAYERED BODY FOR RADIATOR MEMBER, SUBSTRATE WITH HEAT SINK, AND METHOD FOR MANUFACTURING LAYERED BODY FOR RADIATOR MEMBER

摘要

Provided are: a layered body for a radiator member, in which a film comprising aluminum or the like and a ceramic with prescribed characteristics is formed by a cold-spray method on a base material surface comprising copper or the like, wherein the film is provided with a prescribed coefficient of thermal expansion and a prescribed coefficient of thermal conductivity and adhesion between the base material and the film can be improved; a substrate with a heat sink; and a method for manufacturing the layered body for a radiator member. This layered body 52 is characterized: by being equipped with a film 51 that contains a base material 50 formed from copper or the like, an aluminum or aluminum alloy powder, and a ceramic powder with the coefficient of thermal expansion of 7 ppm/K or less and the coefficient of thermal conductivity of 30 W/m·K or more; and in that the proportion of the aluminum or aluminum alloy in the film 51 is 30-95% by volume, the proportion of the ceramic is 5-70% by volume, and the coefficient of thermal expansion of the film is 21 ppm/K or less and the coefficient of thermal conductivity of the film is 140 W/m·K or more.