Title:
立方晶窒化硼素焼結体
Document Type and Number:
Japanese Patent JP6990338
Kind Code:
B2
Abstract:
A cubic boron nitride sintered material includes: more than 80 volume% and less than 100 volume% of cubic boron nitride grains; and more than 0 volume% and less than 20 volume% of a binder phase. The binder phase includes: at least one selected from a group consisting of a simple substance, an alloy, and an intermetallic compound selected from a group consisting of a group 4 element, a group 5 element, a group 6 element in a periodic table, aluminum, silicon, cobalt, and nickel; at least one selected from a group consisting of a compound composed of at least one element selected from the group consisting of the group 4 element, the group 5 element, the group 6 element in the periodic table, aluminum, silicon, cobalt, and nickel, and at least one element selected from a group consisting of nitrogen, carbon, boron, and oxygen, and a solid solution originated from the compound; or the at least one selected from the group consisting of the simple substance, the alloy, and the intermetallic compound selected from the group consisting of the group 4 element, the group 5 element, the group 6 element in the periodic table, aluminum, silicon, cobalt, and nickel, and the at least one selected from a group consisting of the compound composed of the at least one element selected from the group consisting of the group 4 element, the group 5 element, the group 6 element in the periodic table, aluminum, silicon, cobalt, and nickel, and the at least one element selected from the group consisting of nitrogen, carbon, boron, and oxygen, and the solid solution originated from the compound. A dislocation density of the cubic boron nitride grains is more than or equal to 1 × 1015/m2 and less than or equal to 1 × 1017/m2.
Inventors:
Akihito Ishii
Okamura Katsumi
Hiroya Moroguchi
Hisashino Akatsuki
Okamura Katsumi
Hiroya Moroguchi
Hisashino Akatsuki
Application Number:
JP2021500310A
Publication Date:
January 12, 2022
Filing Date:
December 16, 2019
Export Citation:
Assignee:
Sumitomo Electric Industries, Ltd.
Sumitomo Electric Hardmetal Corp.
Sumitomo Electric Hardmetal Corp.
International Classes:
C04B35/5831; B23B27/14
Domestic Patent References:
| JP2005187260A |
Foreign References:
| CN109534826A |
Other References:
鹿田真一ら,パワーデバイス用低抵抗ダイヤモンドの欠陥評価,九州シンクロトロン光研究センター年報,2018年,Vol.2016,P.14-16
НОВИКОВ Н В, БОНДАРЕНКО В П, КОЧЕРЖИНСКИЙ Ю А, БЕЛЯНКИНА,Исследование пластической деформации кубического нит,Sverkhtverdye Materialy,1985年05月14日,No.2,P.17-20,全5頁
НОВИКОВ Н В, БОНДАРЕНКО В П, КОЧЕРЖИНСКИЙ Ю А, БЕЛЯНКИНА,Исследование пластической деформации кубического нит,Sverkhtverdye Materialy,1985年05月14日,No.2,P.17-20,全5頁
Attorney, Agent or Firm:
Fukami patent office
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