BORON NITRIDE POWDER, METHOD FOR PRODUCING SAME, AND HEAT-DISSIPATING MEMBER PRODUCED USING SAME

To provide a boron nitride powder having excellent heat conductivity and high particle strength. Provided is a boron nitride powder which comprises bulky boron nitride formed such that scaly primary particles of hexagonal boron nitride are aggregated to form bulky particles, and which has the follow...

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Bibliographic Details
Main Authors NAKASHIMA, Michiharu, TANIGUCHI, Yoshitaka, TAKEDA, Go
Format Patent
LanguageEnglish
French
German
Published 21.07.2021
Subjects
BASIC ELECTRIC ELEMENTS
CHEMISTRY
COMPOSITIONS BASED THEREON
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
COMPOUNDS THEREOF
ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
INORGANIC CHEMISTRY
METALLURGY
NON-METALLIC ELEMENTS
ORGANIC MACROMOLECULAR COMPOUNDS
SEMICONDUCTOR DEVICES
THEIR PREPARATION OR CHEMICAL WORKING-UP
USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS
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Summary:To provide a boron nitride powder having excellent heat conductivity and high particle strength. Provided is a boron nitride powder which comprises bulky boron nitride formed such that scaly primary particles of hexagonal boron nitride are aggregated to form bulky particles, and which has the following characteristics (A) to (C):(A) a particle strength of the bulky particles at a cumulative breakdown rate of 63.2% is 5.0 MPa or more;(B) an average particle size of the boron nitride powder is 2 µm or more and 20 µm or less; and(C) an orientation index of the boron nitride powder as determined from X-ray diffraction is 20 or less.
Bibliography:Application Number: EP20180866783