	US 12,070,802 B2
	Sintered material and cutting tool including same
Akito Ishii, Hyogo (JP); Takashi Harada, Hyogo (JP); Katsumi Okamura, Hyogo (JP); and Satoru Kukino, Hyogo (JP)
Assigned to Sumitomo Electric Industries, Ltd., Osaka (JP)
Appl. No. 16/339,557
Filed by SUMITOMO ELECTRIC INDUSTRIES, LTD., Osaka (JP)
PCT Filed Jul. 10, 2017, PCT No. PCT/JP2017/025155 § 371(c)(1), (2) Date Apr. 4, 2019, PCT Pub. No. WO2018/074017, PCT Pub. Date Apr. 26, 2018.
Claims priority of application No. 2016-203467 (JP), filed on Oct. 17, 2016.
Prior Publication US 2019/0240739 A1, Aug. 8, 2019
Int. Cl. B32B 27/14 (2006.01); B23B 27/14 (2006.01); C04B 35/119 (2006.01); C04B 35/488 (2006.01); C04B 35/50 (2006.01); C04B 35/505 (2006.01); C04B 35/56 (2006.01); C04B 35/58 (2006.01)

CPC B23B 27/14 (2013.01) [C04B 35/119 (2013.01); C04B 35/488 (2013.01); C04B 35/4885 (2013.01); C04B 35/50 (2013.01); C04B 35/505 (2013.01); C04B 35/56 (2013.01); C04B 35/58 (2013.01)]

6 Claims

1. A sintered material comprising a first material and a second material, wherein

the first material is partially stabilized ZrO₂in which 1 to 90 volume % of Al₂O₃is dispersed in crystal grain boundaries or crystal grains,

the Al₂O₃is 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.