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POLYCRYSTALLINE DIAMOND AND METHOD FOR PRODUCING SAME, CUTTING TOOL, AND PROCESSING METHOD USING POLYCRYSTALLINE DIAMOND
Provided is polycrystalline diamond having a diamond single phase as basic composition, in which the polycrystalline diamond includes a plurality of crystal grains and contains boron, at least either of nitrogen and silicon, and a remainder including carbon and trace impurities; the boron is dispersed in the crystal grains at an atomic level, and greater than or equal to 90 atomic% of the boron is present in an isolated substitutional type; the nitrogen and the silicon are present in an isolated substitutional type or an interstitial type in the crystal grains; each of the crystal grains has a grain size of less than or equal to 500 nm; and the polycrystalline diamond has a surface covered with a protective film.
POLYCRYSTALLINE DIAMOND AND METHOD FOR PRODUCING SAME, CUTTING TOOL, AND PROCESSING METHOD USING POLYCRYSTALLINE DIAMOND
Provided is polycrystalline diamond having a diamond single phase as basic composition, in which the polycrystalline diamond includes a plurality of crystal grains and contains boron, at least either of nitrogen and silicon, and a remainder including carbon and trace impurities; the boron is dispersed in the crystal grains at an atomic level, and greater than or equal to 90 atomic% of the boron is present in an isolated substitutional type; the nitrogen and the silicon are present in an isolated substitutional type or an interstitial type in the crystal grains; each of the crystal grains has a grain size of less than or equal to 500 nm; and the polycrystalline diamond has a surface covered with a protective film.
POLYCRYSTALLINE DIAMOND AND METHOD FOR PRODUCING SAME, CUTTING TOOL, AND PROCESSING METHOD USING POLYCRYSTALLINE DIAMOND
POLYKRISTALLINER DIAMANT UND VERFAHREN ZUR HERSTELLUNG DAVON, SCHNEIDWERKZEUG, UND VERARBEITUNGSVERFAHREN UNTER VERWENDUNG EINES POLYKRISTALLINEN DIAMANTEN
DIAMANT POLYCRISTALLIN AINSI QUE PROCÉDÉ DE FABRICATION DE CELUI-CI, OUTIL DE COUPE, ET PROCÉDÉ D'USINAGE METTANT EN UVRE UN DIAMANT POLYCRISTALLIN
IKEDA KAZUHIRO (author) / ARIMOTO KEIKO (author) / YAMAMOTO KATSUKO (author) / SUMIYA HITOSHI (author)
2022-06-01
Patent
Electronic Resource
English
IPC:
C01B
NON-METALLIC ELEMENTS
,
Nichtmetallische Elemente
/
B01J
Chemische oder physikalische Verfahren, z.B. Katalyse oder Kolloidchemie
,
CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY
/
B23B
Drehen
,
TURNING
/
C04B
Kalk
,
LIME
/
C23C
Beschichten metallischer Werkstoffe
,
COATING METALLIC MATERIAL
/
C25B
ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON- METALS
,
Elektrolytische oder elektrophoretische Verfahren für die Herstellung von Verbindungen oder von nichtmetallischen Elementen
/
C30B
SINGLE-CRYSTAL GROWTH
,
Züchten von Einkristallen
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| European Patent Office | 2022
| European Patent Office | 2016