Nanocrystalline sintered bodies made from alpha aluminum oxide method for production and use thereof
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United States of America Patent
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Issued Date -
Apr 16, 2009
app pub date -
Jul 12, 2006
filing date -
Jul 16, 2005
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Abstract
Nanocrystalline sintered bodies, and a method of making same, said sintered bodies based on a 95 to 100% content of alpha-aluminum oxide by weight, a Vickers hardness greater than or equal to 17.5 GPa, and a crystal structure where the average primary crystal size of the alpha-aluminum oxide is less than or equal to 100 nanometers.
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