Difference between revisions of "Template:Featured article"

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===<!--[[Image:red_ring.png|15px|left]]-->Featured article: [[Sintered regolith]]===
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===<!--[[Image:red_ring.png|15px|left]]-->Featured article: [[Volatiles]]===
[[Image:MLS1_Brick.GIF|160px|left]] Sintered [[regolith]] falls into the category of ceramic materials as sintering is the process most common to ceramics. When bricks are made from clay on Earth, first the bricks are heated long enough and hot enough to drive out the water. Then the heating is increased to cause partial melting or vitrification which results in the edges of adjacent grains being bonded together once they have cooled.  The unmelted particles provide a stable shape and size during the process which involves some shrinkage and a decrease in porosity.
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[[Image:Apollo11Soil.jpg|160px|left]] The primary resource of value to humans on the Moon is the volatile components found in the [[regolith]]. These are all the components that are gases at room temperature. Most of the volatiles have been deposited in the top layers of the Moon's surface by the [[solar wind]] over geologic time. A notable exception to this is [[Argon]]. the concentration of Argon in lunar soil is much higher than found in the solar wind, so must come from a different source. Especially, the isotope Argon-40. It is presently believed that the Argon-40 comes from radioactive decay of [[Potassium]] and/or [[Krypton]] deep within the lunar mantle or core, and that the Argon-40 seeps out to the surface via fissures. This vented Argon enter the lunar atmosphere; then the Argon is implanted into the regolith by interactions with ions from the solar wind.([[Volatiles|read more]])
 
 
Experiments in radiant heating of regolith simulant have been carried([[Sintered regolith|read more]])
 
 
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Revision as of 03:56, 5 August 2008

Featured article: Volatiles

The primary resource of value to humans on the Moon is the volatile components found in the regolith. These are all the components that are gases at room temperature. Most of the volatiles have been deposited in the top layers of the Moon's surface by the solar wind over geologic time. A notable exception to this is Argon. the concentration of Argon in lunar soil is much higher than found in the solar wind, so must come from a different source. Especially, the isotope Argon-40. It is presently believed that the Argon-40 comes from radioactive decay of Potassium and/or Krypton deep within the lunar mantle or core, and that the Argon-40 seeps out to the surface via fissures. This vented Argon enter the lunar atmosphere; then the Argon is implanted into the regolith by interactions with ions from the solar wind.(read more)

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