Toyo Aluminium Kabushiki Kaisha

Nippon Light Metal Company, Ltd.

Kazuya Higashimura

Akira Kato

Jun Kusui

Akiei Tanaka

Yuji Suzuki

Kazumi Tono

Shuhei Kanno

Katsumi Nakashima

Yasuo Ishiwata

Katsuya Moriguchi

Takamasa Tanaka

To provide an aluminum nitride-based powder that includes less amount of fine powder that is hard to be completely removed, has superior filling performance for a polymeric material, and also has thermal conductivity. The present invention relates to an aluminum nitride-based powder comprising aluminum nitride-based particles, wherein (1) the average particle size D50 is 15 to 200 μm; (2) a content of particles having a particle size of at most 5 μm is at most 60% on a particle number basis; (3) a content of an alkaline earth metal element and a rare-earth element is at most 0.1 weight %; (4) a content of oxygen is at most 0.5 weight %; and (5) a content of silicon is at most 1000 ppm by weight, and a content of iron is at most 1000 ppm by weight.

Aluminum nitride-based powder and method for producing same

Provided are a method and an apparatus for melting an aluminum powder, which are capable of melting the aluminum powder with a high yield and allow the melted aluminum to be reused for a variety of applications. The method for melting the aluminum powder includes the steps of: preparing a mixture (M) including an aluminum powder (A) and a fluoride-based flux (F) by previously mixing the aluminum powder (A) and the fluoride-based flux (F); and melting the mixture (M) in molten aluminum (L).

Method and apparatus for melting aluminum powder

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Osaka, Japan

Kazuya Higashimura