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US 9,988,315 B2Granted
Sintered body and cutting tool including the same
AssigneesSumitomo Electric Industries, Ltd., Sumitomo Electric Hardmetal Corp.
InventorsAkito Ishii, Takashi Harada, Katsumi Okamura, Satoru Kukino
Life of this patent
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Abstract
A sintered body of the present invention is a sintered body including a first material and cubic boron nitride. The first material is partially-stabilized ZrO2 including 5 to 90 volume % of Al2O3 dispersed in crystal grain boundaries or crystal grains of partially-stabilized ZrO2.
Claims11
A sintered body comprising a first material and cubic boron nitride,
- the first material being partially-stabilized ZrO2 including 5 to 90 volume % of Al2O3 with respect to the whole of the first material, the Al2O3 being dispersed in crystal grain boundaries or crystal grains of partially-stabilized ZrO2.
Dependencies are inferred from the claim text.