Journal of The Japan Society of Microgravity Application
Print ISSN : 0915-3616
Volume 11, Issue 4
Displaying 1-4 of 4 articles from this issue
  • [in Japanese]
    1994 Volume 11 Issue 4 Pages 151-
    Published: October 31, 1994
    Released on J-STAGE: January 21, 2021
    JOURNAL OPEN ACCESS
    Download PDF (395K)
  • T. Hibiya, K.-W. Yi, S. Nakamura, K. Kakimoto
    1994 Volume 11 Issue 4 Pages 153-
    Published: October 31, 1994
    Released on J-STAGE: January 21, 2021
    JOURNAL OPEN ACCESS
    Materials processing experiments under hyper-gravity in centrifuge are reviewed. It has been reported that flow can be stabilized with increase in centrifugal acceleration and that quality of grown crystals are improved. Flow can be stabilized in the following conditions; 1. when gravitational vector is normal to the solid-liquid inter-face, 2. when a gradient of acceleration exists within the container parallel to the rotating arm, or 3. when the Coriolis force exists. The effect of the Coriolis force is discussed through heat transfer experiment using a transient hot-wire technique and three-dimensional numerical modeling. Utilization of centrifuge does not directly correspond to increase in static acceleration, but different kinds of phenomena appear due to the following factors: rotation rate, length of a rotating arm, size of specimen, geometry of specimen and so on.
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  • [in Japanese]
    1994 Volume 11 Issue 4 Pages 170-
    Published: October 31, 1994
    Released on J-STAGE: January 21, 2021
    JOURNAL OPEN ACCESS
    Download PDF (639K)
  • [in Japanese]
    1994 Volume 11 Issue 4 Pages 173-
    Published: October 31, 1994
    Released on J-STAGE: January 21, 2021
    JOURNAL OPEN ACCESS
    Download PDF (2101K)
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