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Metal Powder Additives in Evacuated-Powder Insulation

  • B. J. Hunter
  • R. H. Kropschot
  • J. E. Schrodt
  • M. M. Fulk
Conference paper
Part of the Advances in Cryogenic Engineering book series (ACRE, volume 5)

Abstract

The purpose of this paper is to discuss the results of some recent experiments using evacuated powders as insulation for very low temperatures. Particular emphasis is given to the mechanics of radiant heat transfer through evacuated powders to which metal particles of various sizes were added as opacifier s. A powder with an apparent mean thermal conductivity of l,7μw/cm-°K between 300 and 20°K is reported.

Keywords

Metal Powder Radiant Heat Transfer Silica Aerogel Aluminum Powder Radiation Shield 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. 1.
    M. M. Fulk, “Evacuated powder Insulation for low temperatures/ in: Progress in Cryogenics, K Mendelssohn (ed.), Heywood and Co., London (1959).Google Scholar
  2. 2.
    C. Orr and J. M. Dallayalle, Fine Particle Measurement, Macmillan Company, New York (1959).Google Scholar
  3. 3.
    M. J. Sinnot, The Solid State for Engineers, John Wiley and Sons, Inc., New York (1958) p. 473.Google Scholar

Copyright information

© Springer Science+Business Media New York 1960

Authors and Affiliations

  • B. J. Hunter
    • 1
  • R. H. Kropschot
    • 1
  • J. E. Schrodt
    • 1
  • M. M. Fulk
    • 1
  1. 1.CEL National Bureau of StandardsBoulderUSA

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