BORON NITRIDE SINTERED BODY, COMPOSITE, METHODS FOR PRODUCING SAME, AND HEAT DISSIPATION MEMBER

BORON NITRIDE SINTERED BODY, COMPOSITE, METHODS FOR PRODUCING SAME, AND HEAT DISSIPATION MEMBER

Provided is a boron nitride sintered body including boron nitride particles and pores, in which an average pore diameter of the pores is less than 2 µm. Provided is a method for manufacturing a boron nitride sintered body, the method including: a nitriding step of firing a boron carbide powder in a...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: TAKEDA Makoto, IKARASHI Koki
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
ARTIFICIAL STONE
BASIC ELECTRIC ELEMENTS
CEMENTS
CERAMICS
CHEMISTRY
COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS
CONCRETE
ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
LIME, MAGNESIA
METALLURGY
REFRACTORIES
SEMICONDUCTOR DEVICES
SLAG
TREATMENT OF NATURAL STONE
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Beschreibung
Zusammenfassung:Provided is a boron nitride sintered body including boron nitride particles and pores, in which an average pore diameter of the pores is less than 2 µm. Provided is a method for manufacturing a boron nitride sintered body, the method including: a nitriding step of firing a boron carbide powder in a nitrogen pressurized atmosphere to obtain a fired product containing boron carbonitride; and a sintering step of molding and heating a blend containing the fired product and a sintering aid to obtain the boron nitride sintered body including boron nitride particles and pores, in which the sintering aid contains boron oxide and calcium carbonate, and the blend contains 1 to 20 parts by mass of a boron compound and a calcium compound in total with respect to 100 parts by mass of the fired product.