Isocyanate-crosslinked Metal Oxide-doped Silica Aerogels in Chromatic Calibration Targets for Planetary Exploration
To generate photographs from the surfaces of other planets, imaging instruments need calibration standards that can withstand harsh environmetns while maintaining accurate color. These calibration targets much have low dust adhesion, resist chaning color or degradation in the presence of intense UV radiation, have minimal spacecraft or its instruments. The panoramic camera aboard existing Mars Rovers utilizes a moderately tacky matheral (RTV 655) for such chromatic calibration targets, in which dust readily adheres. Current investigations intruduce varying metal oxides as pigmentation into silica aerogels, which in a comparison to RTV 655, are much lighter weight materials which show little tackiness or dust adhesion while maintaining the desired pigmentation.
A. Hobbs et al., "Isocyanate-crosslinked Metal Oxide-doped Silica Aerogels in Chromatic Calibration Targets for Planetary Exploration," Polmeric Materials: Science and Engineering, American Chemical Society (ACS), Jan 2006.
NASA Glenn Research Center
National Science Foundation (U.S.)
University of Florida
Article - Journal
© 2006 American Chemical Society (ACS), All rights reserved.