Open-Cell High-Porosity Porous Aluminum Material Sintered in the Magnesium Vapor

DOI Web Site 15 References
  • Date Kenji
    Metallurgical Research Laboratory, Yasugi Works, Hitachi Metals, Ltd.

Bibliographic Information

Other Title
  • マグネシウム蒸気中での焼結によるオープンセル高空隙率アルミニウム多孔質体の製造方法の検討
  • マグネシウム ジョウキ チュウ デ ノ ショウケツ ニ ヨル オープンセル コウクウゲキリツ アルミニウム タコウシツタイ ノ セイゾウ ホウホウ ノ ケントウ

Search this article

Description

The effect of Mg vapor on Al sintering process has been investigated to manufacture open-cell high porosity porous Al material by Space Holder Method. It was found that Al-Mg oxide particles of 50-100 nm in size and exposed Al matrix were formed on the surface of Al sintered in Mg vapor. When the sintering temperature was higher than 915 K, droplets were formed below the melting point of Al, 933 K. It was supposed that Mg in sintering atmosphere could diffuse into Al powder surface and transform Al oxide film into Al-Mg oxide particles and exposed Al matrix by reduction, furthermore Mg diffusing into exposed Al matrix could lower the solidus and liquidus temperature of Al powder surface area and form liquid regions. These phenomena are effective for Al sintering process without forming excessive amounts of liquid. A temperature range of 905-910 K was suitable for sintering porous Al material in Mg vapor conditions of this work. Open-cell porous Al sheet with 88 % porosity and no inclusions in the neck boundary was obtained.

Journal

References(15)*help

See more

Keywords

Details 詳細情報について

Report a problem

Back to top