To provide an improved technique capable of obtaining a carbon nanocomposite metal forming having higher strength.
The production method comprises: a stage (a) wherein carbon nanomaterials 11 and metal powders 12 are prepared; a stage (b) wherein preliminary mixing is performed; a stage (c) wherein the carbon nanomaterials 11 and metal powder 12 are completely kneaded by a mechanical alloying process; a stage (d) wherein carbon nanocomposite metal powders 13 in a form where the metal powders 12 are covered with the numerous carbon nanomaterials 11 are obtained according to the above stages; a stage (e) wherein the carbon nanocomposite metal powders 13 are packed into a die 15; and a stage (f) wherein an upper punch 16 is inserted into the die 15, and, as temperature is held to about 150°C, the carbon nanocomposite metal powders 13 are consolidated. Thus, a preliminary forming 17 can be obtained. The metal powders can be covered with the carbon nanomaterials, and the re-aggregation of the carbon nanomaterials can be suppressed.
SATO TOMOYUKI
KATO ATSUSHI
