Low‐Temperature Thermal Conductivity of Some Commercial Coppers

摘要: Values are given for the thermal conductivity between 4°K and 273°K of six commercial coppers copper alloys: coalesced, electrolytic tough‐pitch, free‐cutting (tellurium) phosphorus deoxidized coppers, leaded brass, silicon bronze A. The first three show maximum typical pure metals; last monotonic increase characteristic alloys. intrinsic resistance in purer varies appreciably with concentration chemical impurities but is much less affected by physical imperfections. In heavily worked alloys lattice contribution to minor total essentially electronic as limited imperfection scattering.