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Proceedings Paper

The effects of ionizing radiation, temperature, and space contamination effects on self-cleaning and anti-contamination coatings
Author(s): Ronald Pirich; John Weir; Dennis Leyble
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Paper Abstract

A revolutionary family of cost-effective, lightweight, self-cleaning and anti-contamination coatings is being investigated to mitigate lunar dust on critical power and optical systems, including solar photovoltaic power systems, radiators, and other components needed for lunar exploration as well as optical instruments and sensors. Dust contamination is a serious problem for equipment and vehicles since Lunar "weathering" has left the lunar soil has fine texture compared to terrestrial dust particle size distributions. The electrostatic charging of the lunar surface is caused by its interaction with the local plasma environment and solar UV and X-rays induced photoemission of electrons. The lunar thermal environment poses unique challenges to coatings since it is characterized by large temperature variations, long hot and cold soak times, and reduced heat rejection capability due to the presence of the lunar regolith. We are attempting to design an integrated approach to solving the dust problems associated with its many elements This presentation will discuss the properties, as a function of ionizing radiation, temperature and space contamination effects, for both hydrophilic and hydrophobic coating self-cleaning approaches as well as a new approach which incorporates various catalytic mechanisms (stoichiometric, photocatalytic and electrocatalytic) for decontamination in the lunar environment.

Paper Details

Date Published: 26 August 2008
PDF: 11 pages
Proc. SPIE 7095, Nanophotonics and Macrophotonics for Space Environments II, 709503 (26 August 2008); doi: 10.1117/12.796990
Show Author Affiliations
Ronald Pirich, Northrop Grumman Integrated Systems (United States)
John Weir, Northrop Grumman Integrated Systems (United States)
Dennis Leyble, Northrop Grumman Integrated Systems (United States)

Published in SPIE Proceedings Vol. 7095:
Nanophotonics and Macrophotonics for Space Environments II
Edward W. Taylor; David A. Cardimona, Editor(s)

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