COMPOSITE POLYCRYSTAL AND TOOL WITH COMPOSITE POLYCRYSTAL
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United States of America
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Nov 7, 2024
app pub date -
Jun 11, 2021
filing date -
Jun 11, 2021
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Abstract
A polycrystalline composite comprising diamond particles and non-diamond carbon, wherein: the sum of the content Vd of the diamond particles and the content Vg of the non-diamond carbon is more than 99% by volume based on the total volume of the polycrystalline composite; the median diameter d50 of the diamond particles is 10 nm or more and 200 nm or less; the dislocation density of the diamond particles is 1.0×1013 m−2 or more and 1.0×1016 m−2 or less; and the content Vd of the diamond particles and the content Vg of the non-diamond carbon satisfy the relationship represented by the formula 1:0.01
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