Recent NASA GSFC cryogenic measurements of the total hemispheric emissivity of black surface preparations

High-emissivity (black) surfaces are commonly used on deep-space radiators and thermal radiation absorbers in test chambers. Since 2011 NASA Goddard Space Flight Center has measured the total hemispheric emissivity of such surfaces from 20 to 300 K using a test apparatus inside a small laboratory cr...

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Bibliographic Details
Published in:IOP conference series. Materials Science and Engineering 2015-12, Vol.102 (1), p.12015-12022
Main Authors: Tuttle, J, Canavan, E
Format: Article
Language:English
Subjects:
Aluminum
Control methods
Emissivity
Honeycomb
Honeycomb construction
Kapton (trademark)
NASA
Painted
Polyimide resins
Radiators
Space flight
Surface preparation
Temperature control
Test chambers
Thermal radiation
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Summary:High-emissivity (black) surfaces are commonly used on deep-space radiators and thermal radiation absorbers in test chambers. Since 2011 NASA Goddard Space Flight Center has measured the total hemispheric emissivity of such surfaces from 20 to 300 K using a test apparatus inside a small laboratory cryostat. We report the latest data from these measurements, including Aeroglaze Z307 paint, Black Kapton, and a configuration of painted aluminum honeycomb that was not previously tested. We also present the results of batch-to- batch reproducibility studies in Ball Infrared BlackTM and painted aluminum honeycomb. Finally, we describe a recently-adopted temperature control method which significantly speeds the data acquisition, and we discuss efforts to reduce the noise in future data.
ISSN:1757-8981
1757-899X
DOI:10.1088/1757-899X/102/1/012015