TEION KOGAKU (Journal of Cryogenics and Superconductivity Society of Japan)
Online ISSN : 1880-0408
Print ISSN : 0389-2441
ISSN-L : 0389-2441
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Volume 9, Issue 2
Displaying 1-4 of 4 articles from this issue
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  • [title in Japanese]
    T. NISHIKAWA
    1974 Volume 9 Issue 2 Pages 69
    Published: April 30, 1974
    Released on J-STAGE: February 26, 2010
    DOIhttps://doi.org/10.2221/jcsj.9.69
    JOURNAL FREE ACCESS
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  • Forced Convection Heat Transfer to Boiling Helium
    Hisanao OGATA, Shintaro SATO
    1974 Volume 9 Issue 2 Pages 70-77
    Published: April 30, 1974
    Released on J-STAGE: February 26, 2010
    DOIhttps://doi.org/10.2221/jcsj.9.70
    JOURNAL FREE ACCESS
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    This paper d a study performed to obtain the heat transfer charescribesacteristics of liquid helium-I in a vertical tube under forced convection conditions.
    The test section was a stainless steel tube of 0.109cm ID and 8.5cm length. The helium pressure ranged from 1.1 to 1.9atm (0.11 to 0.19MN/m2) and the quality (mass vapor fraction) ranged from zero to 1.
    Results were correlated using the conventional equations and compared with the data in literatures. The hysteresis observed in the nucleate boiling region was qualitatively discussed. The quality dependence of two-phase flow heat transfer was clearly observed during the increase, but not during the decrease, of heat flux or quality.
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  • Low Temperature Thermocouples Using Au+0.07at%Fe Alloy
    Yasumasa TAKANO, Hitoshi ABE, Toyoichiro SHIGI, Yoichi MATSUBARA, Masa ...
    1974 Volume 9 Issue 2 Pages 78-84
    Published: April 30, 1974
    Released on J-STAGE: February 26, 2010
    DOIhttps://doi.org/10.2221/jcsj.9.78
    JOURNAL FREE ACCESS
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    It has been known since systematic study by Berman et al that dilute alloy of Au containing small amount of Fe is an excellent material for low-temperature thermocouples, but so far there was no Au(Fe) wires made in Japan commercially. Recently Osaka Oxygen Ind. Ltd. has developed Au+0.07at%Fe wires. This paper describes the tested results on Au(Fe)-Chromel and Au(Fe)-Cu thermocouples from room temperature down to 1.5K. Temperature variation of thermoelectric power and sensitivity, influence of magnetic field on the thermoelectric power, reproducibility and difference among thermoelectric powers of several specimens are examined. And also temperature variation of electrical resistivity of an Au(Fe) wire is determined to calculate its thermal conductivity.
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  • “Recent Works on Cryoelectronics in USA and Europe”
    Akira NAKAMURA
    1974 Volume 9 Issue 2 Pages 89-93
    Published: April 30, 1974
    Released on J-STAGE: February 26, 2010
    DOIhttps://doi.org/10.2221/jcsj.9.89
    JOURNAL FREE ACCESS
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