Copper alloy, copper alloy producing method, copper complex material, and copper complex material producing method

摘要

Atoms of an element such as Cr is made to form a solid solution in a matrix metal (Cu) at a high temperature and quenched to produce an oversaturated material. This material is strained and aged at a low temperature simultaneously with the straining or after the straining. Thus a copper alloy having preferable characteristics as an electrode material, for example, a hardness of 30 (HRB) or more, a conductivity of 85 (IACS%) or more, and a thermal conductivity of 350 (W/(m Ò K)) or more is produced.