Chipping-proof inorganic solid-state material and chipping-proof edge tool
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United States of America Patent
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Jun 19, 2018
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Aug 16, 2013
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Aug 31, 2012
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Abstract
A chipping-proof nonmetal inorganic solid-state material is characterized in that the inorganic solid-state material has, in at least a part of a surface thereof, a surface structure in which a network of recesses and protuberances surrounded by the recesses are formed, the protuberances have an average width of 5 nm to 50 nm, a physical property of the surface structure differs from the physical property of an interior of the inorganic solid-state material lying below the surface structure, and there is no solid-solid interface between the surface structure and the interior of the inorganic solid-state material.
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