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Sintering Bricks on the Moon

by Carlton C. Allen, Lockheed Engineering & Sciences, Co., Houston, United States,
John C. Graf, Lockheed Engineering & Sciences, Co., Houston, United States,
David S. McKay, Lockheed Engineering & Sciences, Co., Houston, United States,



Document Type: Proceeding Paper

Part of: Engineering, Construction, and Operations in Space IV

Abstract:

Sintering of full-scale 'bricks' from lunar soil simulant materials can be accomplished by radiant heating to 1100?C for approximately 2 hours, followed by slow cooling. Small-scale precompaction and the use of a thermally insulating mold are critical for producing strong, crack-free products. Sintering can also be accomplished using a combination of microwave and radiant heating, though the technique is extremely sensitive to thermal profile and configuration. Sintering in hydrogen is synergistic with oxygen production and yields samples containing enough iron metal to permit handling by a magnet.

Subject Headings: Lunar materials | Construction materials | Bricks | Thermal effects | Thermal analysis | Temperature effects | Soil analysis

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