CHARACTERISATION OF MULTILAYER INSULATION AT CRYOGENIC TEMPERATURES.

Author(s) : KISHAN H.

Type of article: Article

Summary

APPARENT THERMAL CONDUCTIVITY K MEASUREMENTS HAVE BEEN CARRIED OUT ON MULTILAYER INSULATION OR THE SO CALLED SUPERINSULATION CONSISTING OF ALTERNATE LAYERS OF ALUMINIUM FOIL (9 MICROMETERS THICK) AND FIBRE GLASS PAPER (170 MICROMETERS THICK) BETWEEN THE BOUNDARY TEMPERATURES OF 300 AND 77 K UNDER VARYING GAS PRESSURE AND LAYER DENSITY. A MINIMUM VALUE OF K ABOUT 0.38 MICROWCM/CM2K HAS BEEN OBTAINED FOR A DENSITY OF 24 LAYERS/CM AND A PRESSURE OF 0.0013 PASCAL.

Details

  • Original title: CHARACTERISATION OF MULTILAYER INSULATION AT CRYOGENIC TEMPERATURES.
  • Record ID : 1984-0088
  • Languages: English
  • Source: Indian J. pure appl. Phys. - vol. 20 - n. 12
  • Publication date: 1982/12
  • Document available for consultation in the library of the IIR headquarters only.

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