Jump to content

Template:Featured article: Difference between revisions

From Spacepedia
Using KREEP as a proof of concept feature article as it has a nice photo in it...
 
changing Featured Article
Line 1: Line 1:
===<!--[[Image:red_ring.png|15px|left]]-->Featured article: [[KREEP]]===
===<!--[[Image:red_ring.png|15px|left]]-->Featured article: [[Sintered regolith]]===
[[Image:A12 Kreep12013.gif|160px|left]] KREEP is an acronym used in geochemistry to represent a mixture of K-[[potassium]], REE-[[rare earth elements]], and P-[[phosphorus]].  It is not only the main source of these elements on the moon, but also many other trace elements such as [[uranium]], [[thorium]], [[fluorine]], [[chlorine]], and [[zirconium]].   
[[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...'''([[Sintered regolith|read more]])'''
 
...
 
''So to get alloy ingredients for workable metals, nutrients for agriculture, industrial reagents and much more, special concentrations such as [[ilmenite]] and KREEP will play a vital role." - [[Peter Kokh]]''
'''([[KREEP|read more]])'''
<DIV style="text-align:right">
<DIV style="text-align:right">
<!-- <SMALL><STRONG>[[Featured articles|See all featured articles]]</STRONG> | [[Talk:Featured_articles|Nominate!]]</SMALL> -->
<!-- <SMALL><STRONG>[[Featured articles|See all featured articles]]</STRONG> | [[Talk:Featured_articles|Nominate!]]</SMALL> -->

Revision as of 01:15, 29 June 2008

File:MLS1 Brick.GIF

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...(read more)