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BORON NITRIDE SINTERED BODY, COMPOSITE BODY, METHOD FOR PRODUCING SAID BORON NITRIDE SINTERED BODY, METHOD FOR PRODUCING SAID COMPOSITE BODY, AND HEAT DISSIPATION MEMBER
Provided is a boron nitride sintered body including: a plurality of coarse particles each having a length of 20 μm or more; and fine particles smaller than the plurality of coarse particles, in which, when viewed in a cross-section, the plurality of coarse particles intersect with each other. Provided is a method for manufacturing a boron nitride sintered body, the method including: a raw material preparation step of firing a mixture containing boron carbonitride and a boron compound in a nitrogen atmosphere to obtain lump boron nitride having an average particle diameter of 10 to 200 μm; and a sintering step of molding and heating a blend containing the lump boron nitride and a sintering aid to obtain a boron nitride sintered body including coarse particles each having a length of 20 μm or more in a cross-section and fine particles smaller than the coarse particles.
BORON NITRIDE SINTERED BODY, COMPOSITE BODY, METHOD FOR PRODUCING SAID BORON NITRIDE SINTERED BODY, METHOD FOR PRODUCING SAID COMPOSITE BODY, AND HEAT DISSIPATION MEMBER
Provided is a boron nitride sintered body including: a plurality of coarse particles each having a length of 20 μm or more; and fine particles smaller than the plurality of coarse particles, in which, when viewed in a cross-section, the plurality of coarse particles intersect with each other. Provided is a method for manufacturing a boron nitride sintered body, the method including: a raw material preparation step of firing a mixture containing boron carbonitride and a boron compound in a nitrogen atmosphere to obtain lump boron nitride having an average particle diameter of 10 to 200 μm; and a sintering step of molding and heating a blend containing the lump boron nitride and a sintering aid to obtain a boron nitride sintered body including coarse particles each having a length of 20 μm or more in a cross-section and fine particles smaller than the coarse particles.
BORON NITRIDE SINTERED BODY, COMPOSITE BODY, METHOD FOR PRODUCING SAID BORON NITRIDE SINTERED BODY, METHOD FOR PRODUCING SAID COMPOSITE BODY, AND HEAT DISSIPATION MEMBER
IKARASHI KOKI (author) / TAKEDA MAKOTO (author) / KOBASHI SEIJI (author) / NISHIMURA KOJI (author)
2023-05-11
Patent
Electronic Resource
English
| European Patent Office | 2021
| European Patent Office | 2024
Boron nitride sintered body, composite body, method for producing same, and heat dissipation member
| European Patent Office | 2022
Boron nitride sintered body, composite body, method for producing same, and heat dissipation member
| European Patent Office | 2022
Boron nitride sintered body, composite body, method for producing same, and heat dissipation member
| European Patent Office | 2022