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Adhesion of Lunar DustThis paper reviews the physical characteristics of lunar dust and the effects of various fundamental forces acting on dust particles on surfaces in a lunar environment. There are transport forces and adhesion forces after contact. Mechanical forces (i.e., from rover wheels, astronaut boots and rocket engine blast) and static electric effects (from UV photo-ionization and/or tribo-electric charging) are likely to be the major contributors to the transport of dust particles. If fine regolith particles are deposited on a surface, then surface energy-related (e.g., van der Walls) adhesion forces and static-electric-image forces are likely to be the strongest contributors to adhesion. Some measurement techniques are offered to quantify the strength of adhesion forces. And finally some dust removal techniques are discussed.
Document ID
20070020448
Document Type
Contractor Report (CR)
Authors
Walton, Otis R. (Grainflow Dynamics, Inc. Livermore, CA, United States)
Date Acquired
August 23, 2013
Publication Date
April 1, 2007
Subject Category
Lunar and Planetary Science and Exploration
Report/Patent Number
NASA/CR-2007-214685
Funding Number(s)
WBS: WBS 092837.04.02.03
CONTRACT_GRANT: NNC06VC87P
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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