Thermal conductivity measurement below 40 K of the CFRP tubes for the Mid-Infrared Instrument mounting struts

The Mid-Infrared Instrument (MIRI) is one of four instruments on the James Webb Space Telescope observatory, scheduled for launch in 2013. It must be cooled to about 7 K and is supported within the telescope’s 40 K instrument module by a hexapod of carbon fibre reinforced plastic (CFRP) tubing. This...

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Bibliographic Details
Published in:Cryogenics (Guildford) 2007-05, Vol.47 (5), p.348-352
Main Authors: Shaughnessy, B.M., Eccleston, P., Fereday, K.J., Canfer, S.J., Nørgaard-Nielsen, H.U., Jessen, N.C.
Format: Article
Language:English
Subjects:
Applied sciences
Composites (A)
Cryogenics
Energy
Energy. Thermal use of fuels
Exact sciences and technology
Refrigerating engineering. Cryogenics. Food conservation
Space cryogenics (F)
Thermal conductivity (C)
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Summary:The Mid-Infrared Instrument (MIRI) is one of four instruments on the James Webb Space Telescope observatory, scheduled for launch in 2013. It must be cooled to about 7 K and is supported within the telescope’s 40 K instrument module by a hexapod of carbon fibre reinforced plastic (CFRP) tubing. This article describes the measurement of cryogenic thermal conductivity of the candidate CFRP. Measured thermal conductivities were about 0.05 W/m K at a mean temperature of 10 K increasing to about 0.20 W/m K at a mean temperature of 40 K.
ISSN:0011-2275
1879-2235
DOI:10.1016/j.cryogenics.2007.03.006