Abstract
THE relation of the electric resistance to temperature of metallic films of zinc, cadmium, magnesium and antimony, condensed from vapours on a cold surface of glass, was investigated employing an apparatus similar to that described in a previous paper1. A double-walled copper cylinder was inserted in the inner vessel in order to cool pentane contained in the latter indirectly with liquid nitrogen, and a stirrer was used to ensure uniformity of temperature distribution. The bath temperature was read with a copper-constantan thermo-junction and a milli-voltmeter, and the thicknesses of the metallic films were estimated by weighing with a microbalance having an accuracy of 1 × 105 gm. The metallic specimens were from Kahlbaum.
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References
T. Fukuroi, Sci. Rep. Tôhoku Imp. Univ., Prof. Honda Anniversary Volume, 80 (1936).
Kramer, J., Ann. Phys., (5), 19, 37 (1934); Naturwiss., 20, 792, etc. (1932).
Tammann, G. Z., anorg. Chem., 157, 325 (1926) or Jefferies and Archer, ” The Science of Metals” (1924), p. 86. The ratios of the recrystallization temperature and the melting point are given as TR/Ts = 0.320.43 for ordinary metals.
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FUKUROI, T. The So-called Transition Temperature of Metallic Films. Nature 139, 884 (1937). https://doi.org/10.1038/139884b0
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DOI: https://doi.org/10.1038/139884b0
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