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Cubic boron nitride sintered body and coated cubic boron nitride sintered body
A CBN sintered body contains CBN, a binder phase and inevitable impurities. An amount of CBN by volume is between 50%-80%. A total amount of binder phase and inevitable impurities by volume is between 20%-50%. The binder phase contains an Al compound and a Ti compound. The Al compound contains Al and one or more of N, O and B. The Ti compound contains Ti and one or more of C, N and B. When an X-ray diffraction intensity at a (100) plane of the AlN is I1 and an X-ray diffraction intensity at a (104) plane of the Al2O3 is I2, I1/I2 is between 6 and 40. When a total area of the cubic boron nitride and the Al compound is S1, and an area of a region at which the CBN and the Al compound are continuously contacted is S2, S2/S1 is between 0.98 and 1.00.
Cubic boron nitride sintered body and coated cubic boron nitride sintered body
A CBN sintered body contains CBN, a binder phase and inevitable impurities. An amount of CBN by volume is between 50%-80%. A total amount of binder phase and inevitable impurities by volume is between 20%-50%. The binder phase contains an Al compound and a Ti compound. The Al compound contains Al and one or more of N, O and B. The Ti compound contains Ti and one or more of C, N and B. When an X-ray diffraction intensity at a (100) plane of the AlN is I1 and an X-ray diffraction intensity at a (104) plane of the Al2O3 is I2, I1/I2 is between 6 and 40. When a total area of the cubic boron nitride and the Al compound is S1, and an area of a region at which the CBN and the Al compound are continuously contacted is S2, S2/S1 is between 0.98 and 1.00.
Cubic boron nitride sintered body and coated cubic boron nitride sintered body
KOBAYASHI KOTA (Autor:in)
24.04.2018
Patent
Elektronische Ressource
Englisch
IPC:
C04B
Kalk
,
LIME
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