Nissei Plastic Industrial Co., Ltd.

Daisuke Shiba

Masashi Suganuma

Atsushi Kato

Tomoyuki Sato

Keita Arai

Taku Kawano

Kelta Arai

A method for manufacturing a composite metal alloy. An Mg material as an alloy base material and a carbon nanomaterial are mixed together to obtain a mixture in which the Mg material is covered with particles of the carbon nanomaterial. The mixture of the Mg material and carbon nanomaterial are sintered to obtain an Mg sintered compact including the carbon nanomaterial. The Mg sintered compact including the carbon nanomaterial is dissolved to obtain a melt of the composite metal alloy.

Method for manufacturing composite metal alloy and method for manufacturing article from composite metal

A method for producing a carbon nanocomposite metal material with increased carbon nanomaterial dispersibility and increased binding between carbon nanomaterial and matrix metal stock is disclosed. A preform obtained by mixing a matrix metal stock and microparticulate-coated carbon nanomaterial without the need for a dispersant and then compacting the material is maintained for a set time period at a temperature that is at or above the melting point of the matrix metal stock. In this state, the heat-treated body is reduced to a temperature that allows hot working, and a compacting treatment is performed.

Method for producing carbon nanocomposite metal material and method for producing metal article molded therefrom

In a method for manufacturing a composite-metal-forming material, heating a metal material a Mg alloy or an Al alloy is heated to a temperature in a region where a solid and a liquid are both present to thereby yield a semi-molten metal material in a semi-molten state. An additive material is introduced to the semi-molten metal material and kneading is performed to obtain a composite metal material. The composite metal material is heated to a solution temperature of the metal material and a solution treatment is performed to thereby yield a composite-metal-forming material. The additive material introduced is a carbon nano-composite material formed by mixing a carbon nanomaterial and a metal powder to obtain a carbon nano-composite metal powder, compacting the carbon nano-composite metal powder into a solid to obtain a preform, heating the preform in a vacuum, inert gas, or non-oxidizing gas atmosphere to a temperature in a region where a solid and a liquid are both present, and applying pressure to the heated preform.

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Nagano, Japan

Daisuke Shiba