Diamond grains, method for making same and mixture comprising same
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United States of America Patent
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Aug 14, 2018
Grant Date -
Nov 5, 2015
app pub date -
Dec 10, 2013
filing date -
Dec 12, 2012
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Abstract
A method of providing well-shaped diamond grains of at most about 100 microns in size. The method includes providing a synthesis assembly comprising a source of carbon material, a plurality of seed grains on which diamond material can crystallize, and solvent-catalyst material for promoting the crystallization of the diamond grains, and subjecting the synthesis assembly to a condition for growing the diamond grains. The synthesis condition is maintained long enough for at least about half of the carbon material to be converted into the diamond grains.
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