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Cubic boron nitride sintered material, cutting tool including cubic boron nitride sintered material, and method of producing cubic boron nitride sintered material
A cubic boron nitride sintered material includes: more than or equal to 85 volume % and less than 100 volume % of cubic boron nitride grains; and a remainder of a binder, wherein the binder includes WC, Co and an Al compound, and when a TEM-EDX is used to analyze an interface region including an interface at which the cubic boron nitride grains are adjacent to each other, oxygen exists on a whole or part of the interface, and a width D of a region in which the oxygen exists is more than or equal to 0.1 nm and less than or equal to 10 nm.
Cubic boron nitride sintered material, cutting tool including cubic boron nitride sintered material, and method of producing cubic boron nitride sintered material
A cubic boron nitride sintered material includes: more than or equal to 85 volume % and less than 100 volume % of cubic boron nitride grains; and a remainder of a binder, wherein the binder includes WC, Co and an Al compound, and when a TEM-EDX is used to analyze an interface region including an interface at which the cubic boron nitride grains are adjacent to each other, oxygen exists on a whole or part of the interface, and a width D of a region in which the oxygen exists is more than or equal to 0.1 nm and less than or equal to 10 nm.
Cubic boron nitride sintered material, cutting tool including cubic boron nitride sintered material, and method of producing cubic boron nitride sintered material
OKAMURA KATSUMI (Autor:in) / WATANABE YUICHIRO (Autor:in) / ISHII AKITO (Autor:in) / HARADA TAKASHI (Autor:in) / KUKINO SATORU (Autor:in)
26.07.2022
Patent
Elektronische Ressource
Englisch
| Europäisches Patentamt | 2024
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