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The Effect of Ash and Inorganic Pigment Fill on the Atomic Oxygen Erosion of Polymers and Paints (ISMSE-12)Low atomic oxygen fluence (below 1x10(exp 20) atoms/sq cm) exposure of polymers and paints that have a small ash content and/or inorganic pigment fill does not cause a significant difference in erosion yield compared to unfilled (neat) polymers or paints. However, if the ash and/or inorganic pigment content is increased, the surface population of the inorganic content will begin to occupy a significant fraction of the surface area as the atomic oxygen exposure increases because the ash is not volatile and remains as a loosely attached surface layer. This results in a reduction of the flux of atomic oxygen reacting with the polymer and a reduction in the rate of erosion of the polymer remaining. This paper presents the results of ground laboratory and low Earth orbital (LEO) investigations to evaluate the fluence dependence of atomic oxygen erosion yields of polymers and paints having inorganic fill content.
Document ID
20130000843
Document Type
Conference Paper
Authors
Banks, Bruce A. (Alphaport, Inc. Cleveland, OH, United States)
Simmons, Julie C. (Alphaport, Inc. Cleveland, OH, United States)
de Groh, Kim K. (NASA Glenn Research Center Cleveland, OH, United States)
Miller, Sharon K. (NASA Glenn Research Center Cleveland, OH, United States)
Date Acquired
August 27, 2013
Publication Date
September 24, 2012
Subject Category
Chemistry and Materials (General)
Report/Patent Number
E-18531
GRC-E-DAA-TN5907
Meeting Information
12th International Symposium on Materials in Space(Noordwijk)
Funding Number(s)
CONTRACT_GRANT: NNC09BA03B
WBS: WBS 016541.01.03.A054.12
Distribution Limits
Public
Copyright
Public Use Permitted.

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