The lattice thermal conductivity of aluminium at low temperatures (and dilute aluminium-copper alloys)

Abstract
The thermal conductivity of dilute Al(Cu) alloys with 1.17 and 0.12 at.% Cu have been measured in the temperature range 2-20K. For temperature below 10K the lattice thermal conductivity is determined to be close to lambda g=1.0*102 W m-1 K-1 in good agreement with theoretical estimates and recent measurements by Klaffky et al. (1975) on Al(Mg) alloys. The available data on the lattice thermal conductivity in Al are reviewed and discussed.