Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
CUBIC BORON NITRIDE SINTERED BODY AND COATED CUBIC BORON NITRIDE SINTERED BODY
An object of the present invention is to provide a cubic boron nitride sintered body and a coated cubic boron nitride sintered body which can elongate lifetime of a cutting tool or a wear resistant tool. The cubic boron nitride sintered body contains cubic boron nitride, a binder phase and inevitable impurities. An amount of the cubic boron nitride is 50% by volume or more and 80% by volume or less. A total amount of the binder phase and the inevitable impurities is 20% by volume or more and 50% by volume or less. The binder phase contains an Al compound and a Ti compound. The Al compound contains an Al element and at least one element selected from the group consisting of N, O and B. The Ti compound contains a Ti element and at least one element selected from the group consisting of C, N and B. When an X-ray diffraction intensity at a (100) plane of the AlN is made I 1 and an X-ray diffraction intensity at a (104) plane of the Al 2 O 3 is made I 2 , then I 1 /I 2 is 6 or more and 40 or less. When a total area of the cubic boron nitride and the Al compound is made S1, and an area of a region at which the cubic boron nitride and the Al compound are continuously contacted is made S2, then S2/S1 is 0.98 or more and 1.00 or less.
CUBIC BORON NITRIDE SINTERED BODY AND COATED CUBIC BORON NITRIDE SINTERED BODY
An object of the present invention is to provide a cubic boron nitride sintered body and a coated cubic boron nitride sintered body which can elongate lifetime of a cutting tool or a wear resistant tool. The cubic boron nitride sintered body contains cubic boron nitride, a binder phase and inevitable impurities. An amount of the cubic boron nitride is 50% by volume or more and 80% by volume or less. A total amount of the binder phase and the inevitable impurities is 20% by volume or more and 50% by volume or less. The binder phase contains an Al compound and a Ti compound. The Al compound contains an Al element and at least one element selected from the group consisting of N, O and B. The Ti compound contains a Ti element and at least one element selected from the group consisting of C, N and B. When an X-ray diffraction intensity at a (100) plane of the AlN is made I 1 and an X-ray diffraction intensity at a (104) plane of the Al 2 O 3 is made I 2 , then I 1 /I 2 is 6 or more and 40 or less. When a total area of the cubic boron nitride and the Al compound is made S1, and an area of a region at which the cubic boron nitride and the Al compound are continuously contacted is made S2, then S2/S1 is 0.98 or more and 1.00 or less.
CUBIC BORON NITRIDE SINTERED BODY AND COATED CUBIC BORON NITRIDE SINTERED BODY
KUBISCHER GESINTERTER BORNITRIDKÖRPER UND KUBISCHER GESINTERTER BORNITRIDKÖRPER MIT EINER BESCHICHTUNG
PIÈCE FRITTÉE DE NITRURE DE BORE CUBIQUE ET PIÈCE FRITTÉE DE NITRURE DE BORE CUBIQUE REVÊTUE
KOBAYASHI KOTA (Autor:in)
26.09.2018
Patent
Elektronische Ressource
Englisch
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