Sintered material and cutting tool including same
AssigneeSumitomo Electric Industries, Ltd.
InventorsAkito Ishii, Takashi Harada, Katsumi Okamura, Satoru Kukino
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Abstract
A sintered material includes a first material and a second material, wherein the first material is partially stabilized ZrO2 in which 1 to 90 volume % of Al2O3 is dispersed in crystal grain boundaries or crystal grains, the Al2O3 is a grain having a grain size of less than or equal to 1 μm, and the second material is at least one compound selected from a group consisting of a carbide, a nitride, and a carbonitride, and 5 to 95 volume % of the second material is included in the sintered material.
Claims6
A sintered material comprising a first material and a second material, wherein
- the first material is partially stabilized ZrO2 in which 1 to 90 volume % of Al2O3 is dispersed in crystal grain boundaries or crystal grains,
- the Al2O3 is a grain having a grain size of more than or equal to 0.1 μm and less than or equal to 1 μm,
- the second material is at least one compound selected from a group consisting of a carbide, a nitride, and a carbonitride,
- the sintered material includes 30 to 80 volume % of the second material, and
- the sintered material includes 20 volume % or more of the first material.
Dependencies are inferred from the claim text.