Abstract
The thermal and electrical conductivities of Cu-Zn alloys (0 to about 50% Zn) were measured at 0° and -195°, and their behaviours in relation to concentration were studied. The relation between thermal and electrical conductivities, and the characters of Lorenz-ratio of these alloys were explained on the basis of the Authors' conception formerly reported.(i) The temperature dependency of thermal conductivity of these alloys was also interpreted.