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- W4230488507 abstract "The authors examined the way in which the heat conductivity of liquid helium II, under a pressure of about 20 cm mercury, depends on the temperature and on the intensity of the heat current, between 1.05°K and the λ-point. Below 1.6°K the conducted heat is proportional to the cross-section and the conductivity is independent of the length of the capillary tube, the temperature gradient being kept constant. The heat current density is proportional to the fifth power of the temperature, and proportional to the third root of the temperature gradient. If φ is the heat current density (per cm2), for this temperature region ϕ = 0.623 T5 (∂T/∂l)−13 Above 1.6°K the conducted heat shows, if we abstract from casual irregularities, a slight deviation from proportionality to the cross-section. As a function of temperature the heat conductivity has for all temperature gradients a maximum at 1.92°K, as was found already earlier 2)." @default.
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- W4230488507 date "1940-11-01" @default.
- W4230488507 modified "2023-09-27" @default.
- W4230488507 title "New measurements on the heat conductivity of liquid helium II" @default.
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- W4230488507 doi "https://doi.org/10.1016/0031-8914(40)90159-8" @default.
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