Accession Number : AD0744127

Title :   Lattice Thermal Conductivity of a Deformed Copper-Germanium Alloy,

Corporate Author : CONNECTICUT UNIV STORRS INST OF MATERIALS SCIENCE

Personal Author(s) : Friedman,A. J.

Report Date : APR 1972

Pagination or Media Count : 18

Abstract : Results are presented on the isochronal annealing recovery of the 1-4K lattice thermal conductivity of a deformed Cu + 7 atomic % Ge polycrystal. The theory of the modification of dislocation thermal resistivity by solute atmospheres, due to Klemens and Ackerman, predicts a gradual recovery of the lattice conductivity with annealing temperature, up to the recrystallization temperature (700K), due to thermal dispersing of the atmospheres. No effect is observed in this alloy, suggesting that the solute atmospheres did not form upon deformation, or that there was no significant dispersal of the atmospheres by diffusion of the solute atoms away from the dislocations below the recrystallization temperature. (Author)

Descriptors :   (*COPPER ALLOYS, THERMAL CONDUCTIVITY), GERMANIUM ALLOYS, DEFORMATION, ELECTRICAL CONDUCTIVITY, ANNEALING, RECOVERY, DISLOCATIONS, CRYOGENICS

Subject Categories : Metallurgy and Metallography
      Solid State Physics

Distribution Statement : APPROVED FOR PUBLIC RELEASE