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First Demonstration on Direct Laser Fabrication of Lunar Regolith PartsEstablishment of a lunar or Martian outpost necessitates the development of methods to utilize in situ mineral resources for various construction and resource extraction applications. Fabrication technologies are critical for habitat structure development, as well as repair and replacement of tools and parts at the outpost. Herein we report the direct fabrication of lunar regolith simulant parts, in freeform environment, using lasers. We show that raw lunar regolith can be processed at laser energy levels as a low as 2.12 J mm-2 resulting in nanocrystalline and/or amorphous microstructures. Potential applications of laser based fabrication technologies to make useful regolith parts for various applications including load bearing composite structures, radiation shielding, and solar cell substrates is described.
Document ID
Acquisition Source
Kennedy Space Center
Document Type
Preprint (Draft being sent to journal)
Balla, Vamsi Krishna
(Washington State Univ. Pullman, WA, United States)
Roberson, Luke B.
(NASA Kennedy Space Center Cocoa Beach, FL, United States)
OConnor, Gregory W. O.
(Amalgam Industries, Inc. Los Alamos, NM, United States)
Trigwell, Stephen
(ASRC Aerospace Corp. Cocoa Beach, FL, United States)
Bose, Susmita
(Washington State Univ. Pullman, WA, United States)
Bandyopadhyay, Amit
(Washington State Univ. Pullman, WA, United States)
Date Acquired
August 25, 2013
Publication Date
January 1, 2010
Subject Category
Lunar And Planetary Science And Exploration
Report/Patent Number
Distribution Limits
Public Use Permitted.
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