| 简介 |
To provide a method of producing a spherical aluminum nitride powder which has a large thermal conductivity and excellent filling property, and is useful as a filler for heat-radiating materials. [Means for Solution] The spherical aluminum nitride powder is produced by reductively nitriding a mixture of 100 parts by mass of an alumina or an alumina hydrate, 0.5 to 30 parts by mass of a rare earth metal compound and 38 to 46 parts by mass of a carbon powder at a temperature of 1620 to 1900°C for not less than 2 hours. |
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