Method for manufacturing a composite of carbon nanomaterial and metallic material
First Claim
1. A method for manufacturing a composite of a carbon nanomaterial and a metallic material, the method comprising:
- compositing a metallic material of non-ferrous metal alloy with a carbon nanomaterial by adding the carbon nanomaterial in a state where the metallic material shows thixotropic properties by spheroidization of solid phase in a semi-solid state thereof,the compositing being performed by;
adding the carbon nanomaterial to the metallic material in the semi-solid state while stirring, shearing, and kneading the metallic material in the semi-solid state to granulate the solid phase in the semi-solid metallic material to a granular solid phase and to spheroidize the granular solid phase whilemaintaining the metallic material being stirred, sheared, and kneaded at a solid-liquid coexisting temperature; and
dispersing uniformly the carbon nanomaterial into the liquid phase between solid phases while refining grains of the solid phases, by applying ultrasonic vibration to the metallic material in the semi-solid state after said stirring, shearing, and kneading or concurrent therewith.
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Abstract
The present invention provides a method for manufacturing a composite of a carbon nanomaterial and a metallic material which has a homogeneous composite metal structure and thixotropic properties by compositing a metallic material of a non-ferrous metal alloy with a carbon nanomaterial by using both stirring and ultrasonic vibration. The method comprises compositing the metallic material of the non-ferrous metal alloy with the carbon nanomaterial by adding the carbon nanomaterial in a state where the metallic material shows thixotropic properties by spheroidization of solid phase in a semi-solid state, and the compositing is performed by a process for stirring and kneading the semi-solid metallic material while keeping the temperature thereof at a solid-liquid coexisting temperature, and a process for dispersing the carbon nanomaterial to liquid phase between solid phases by ultrasonic vibration.
15 Citations
12 Claims
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1. A method for manufacturing a composite of a carbon nanomaterial and a metallic material, the method comprising:
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compositing a metallic material of non-ferrous metal alloy with a carbon nanomaterial by adding the carbon nanomaterial in a state where the metallic material shows thixotropic properties by spheroidization of solid phase in a semi-solid state thereof, the compositing being performed by; adding the carbon nanomaterial to the metallic material in the semi-solid state while stirring, shearing, and kneading the metallic material in the semi-solid state to granulate the solid phase in the semi-solid metallic material to a granular solid phase and to spheroidize the granular solid phase while maintaining the metallic material being stirred, sheared, and kneaded at a solid-liquid coexisting temperature; and dispersing uniformly the carbon nanomaterial into the liquid phase between solid phases while refining grains of the solid phases, by applying ultrasonic vibration to the metallic material in the semi-solid state after said stirring, shearing, and kneading or concurrent therewith. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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Specification