COMPOSITE POLYCRYSTAL AND TOOL WITH COMPOSITE POLYCRYSTAL

COMPOSITE POLYCRYSTAL AND TOOL WITH COMPOSITE POLYCRYSTAL

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...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: KUKINO, Satoru, MATSUKAWA, Michiko, ISHIDA, Yuh
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
CHEMISTRY
COMPOUNDS THEREOF
INORGANIC CHEMISTRY
METALLURGY
NON-METALLIC ELEMENTS
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Beschreibung
Zusammenfassung: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