Method for Producing Aluminum Nitride Powder, Aluminum Nitride Powder, and Package
AssigneeTokuyama Corporation
InventorsYasuyuki Yamamoto, Hideki Satou
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Abstract
To produce aluminum nitride in the form of a lump that can easily be broken down by light pulverization, which could not be obtained by a conventional combustion synthesis method. A method for producing aluminum nitride powder by a combustion synthesis method using a metallic aluminum powder, characterized in that a powder mixture in which an aluminum nitride powder having an average primary particle diameter of 3 μm or less as a diluent is mixed with a metallic aluminum powder in a ratio of 150 to 400 parts by mass of the aluminum nitride powder relative to 100 parts by mass of the metallic aluminum powder, is ignited to combust in a nitrogen atmosphere.
Claims9
A method for producing an aluminum nitride powder by a combustion synthesis method using a metallic aluminum powder, wherein a powder mixture in which an aluminum nitride powder having an average primary particle diameter of 3 μm or less as a diluent is mixed with a metallic aluminum powder in a ratio of 150 to 400 parts by mass of the aluminum nitride powder relative to 100 parts by mass of the metallic aluminum powder, is ignited to combust in a nitrogen atmosphere.
An aluminum nitride powder characterized by comprising aggregated particles made up of aluminum nitride primary particles having an average primary particle diameter of 3 μm or less and a crushing strength of 300 MPa or less, and by having a size exceeding the average primary particle diameter of the aluminum nitride particles but being 20 μm or less.
Dependencies are inferred from the claim text.