Sintered compact and cutting tool
AssigneesSumitomo Electric Hardmetal Corp., Sumitomo Electric Industries, Ltd.
InventorsKatsumi Okamura, Mayu Danda, Satoru Kukino
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Abstract
A sintered compact according to the present invention includes: a first material that is cubic boron nitride; a second material that is an oxide of zirconium; and a third material that is an oxide of aluminum, the second material including cubic ZrO2 and ZrO, the third material including α-Al2O3, and the sintered compact satisfying the following relation: 0.9≦Izro2(111)/Ial(110)≦30; and 0.3≦Izro(111)/Ial(110)≦3, where Ial(110), Izro2(111), and Izro(111) respectively represent X-ray diffraction intensities of a (110) plane of the α-Al2O3, a (111) plane of the cubic ZrO2, and a (111) plane of the ZrO.
Claims9
A sintered compact comprising:
- a first material that is cubic boron nitride;
- a second material that is an oxide of zirconium;
- and
- a third material that is an oxide of aluminum,
- the second material including cubic ZrO2 and ZrO,
- the third material including α-Al2O3,
- the sintered compact satisfying the following relation:
- 0.9≦Izro2(111)/Ial(110)≦30;
- and
- 0.3≦Izro(111)/Ial(110)≦3,
- where Ial(110), Izro2(111), and Izro(111) respectively represent X-ray diffraction intensities of a (110) plane of the α-Al2O3, a (111) plane of the cubic ZrO2, and a (111) plane of the ZrO.
Dependencies are inferred from the claim text.