COMPOSITE SINTERING MATERIALS USING CARBON NANOTUBE AND MANUFACTURING METHOD THEREOF
First Claim
1. A manufacturing method of composite sintering materials using carbon nanotube comprising the steps of:
- manufacturing master alloys by combining carbon nanotubes with metal powders;
growing or alloying the carbon nanotubes by compacting and then sintering the master alloy;
generating the carbon nanotubes (including carbide nano particles) in the pores of a sintered product or impregnating and combining the carbon nanotubes therein; and
strengthening mechanical characteristics by repeatedly performing the sintering process and the generating process of the carbon nanotubes in the sintered product or the impregnating and combining processes of the carbon nanotubes.
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Abstract
The present invention relates to a composite sintering materials using a carbon nanotube (including carbide nano particles, hereinafter the same) and a manufacturing method thereof, the method comprises the steps of: combining or generating carbon 5 nanotubes in metal powers, a compacted product, or a sintered product; growing and alloying the carbon nanotubes by compacting or sintering the metal powers, the compacted product, or the sintered product; and strengthening the mechanical characteristics by repeatedly performing the sintering process and the combining process or the generating process of the carbon nanotubes. The composite sintering materials using carbon nanotubes of the present invention have excellent mechanical, thermal, and electric and electronic characteristics as well as have effects of material cost reduction and manufacturing cost reduction due to reduced sintering temperature so that they are useful as materials for automotive parts, electric and electronic parts, space and aircraft parts, and molding and cutting tools, all of which include the composite sintering materials using carbon nanotubes.
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Citations
17 Claims
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1. A manufacturing method of composite sintering materials using carbon nanotube comprising the steps of:
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manufacturing master alloys by combining carbon nanotubes with metal powders; growing or alloying the carbon nanotubes by compacting and then sintering the master alloy; generating the carbon nanotubes (including carbide nano particles) in the pores of a sintered product or impregnating and combining the carbon nanotubes therein; and strengthening mechanical characteristics by repeatedly performing the sintering process and the generating process of the carbon nanotubes in the sintered product or the impregnating and combining processes of the carbon nanotubes. - View Dependent Claims (7, 8, 9)
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2. A manufacturing method of composite sintering materials using carbon nanotube comprising the steps of:
- generating carbon nanotubes (including carbide nano particles) in metal powders;
growing or alloying the carbon nanotubes by compacting and then sintering the metal powders in which the carbon nanotubes are generated;
generating the carbon nanotubes in the pores of a sintered product or impregnating and combining the carbon nanotubes therein; andstrengthening mechanical characteristics by repeatedly performing the sintering process and the generating process of the carbon nanotubes in the sintered product or the impregnating and combining processes of the carbon nanotubes. - View Dependent Claims (13)
- generating carbon nanotubes (including carbide nano particles) in metal powders;
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3. A manufacturing method of composite sintering materials using carbon nanotube comprising the steps of:
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generating carbon nanotubes (including carbide nano particles) in the pores of a compacted product after compacting metal powders or impregnating the carbon nanotubes therein to combine the metal powders with the carbon nanotubes in the pores of the compacted product; growing or alloying the carbon nanotubes by sintering the compacted product in which the carbon nanotubes are generated or with which the carbon nanotubes are combined; generating the carbon nanotubes in the pores of a sintered product or impregnating and combining the carbon nanotubes therein; and strengthening mechanical characteristics by repeatedly performing the sintering process and the generating process of the carbon nanotubes in the sintered product or the impregnating and combining processes of the carbon nanotubes. - View Dependent Claims (14)
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4. A manufacturing method of composite sintering materials using carbon nanotube comprising the steps of:
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generating carbon nanotubes (including carbide nano particles) in the pores of a finished product sintered after compacting metal powders or impregnating the carbon nanotubes therein to combine the metal powders with the carbon nanotubes in the pores of a sintered product; growing or alloying the carbon nanotubes by resintering the sintered product in which the carbon nanotubes are generated or with which the carbon nanotubes are combined; generating the carbon nanotubes in the pores of the sintered product or impregnating and combining the carbon nanotubes therein; and strengthening mechanical characteristics by repeatedly performing the sintering process and the generating process of the carbon nanotubes in the sintered product or the impregnating and combining processes of the carbon nanotubes. - View Dependent Claims (15)
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5. A manufacturing method of composite sintering materials using carbon nanotube comprising the steps of:
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manufacturing master alloys by combining carbon nanotubes (including carbide nano particles) with metal powders or generating the carbon nanotubes in metal powders; mixing the master alloy or the metal powders, wherein the carbon nanotubes are generated, with another metal powders or ceramic materials; growing or alloying the carbon nanotubes by compacting and then sintering the mixture; impregnating and combining the carbon nanotubes in the pores of a sintered product or generating the carbon nanotubes therein; and strengthening mechanical characteristics by repeatedly performing the sintering process and the generating process of the carbon nanotubes in the sintered product or the impregnating and combining processes of the carbon nanotubes. - View Dependent Claims (16)
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6. A manufacturing method of composite sintering materials using carbon nanotube comprising the steps of:
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mixing metal powders with ceramic materials;
compacting the mixture or compacting and then sintering it;generating and impregnating the carbon nanotubes (including carbide nano particles) in the pores of a compacted product or a sintered product or combing the carbon nanotubes therein; growing or alloying the carbon nanotubes by sintering the compacted product; and
,strengthening mechanical characteristics by repeatedly performing the sintering process and the generating process of the carbon nanotubes in the sintered product or the impregnating and combining processes of the carbon nanotubes. - View Dependent Claims (17)
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10. A manufacturing method of composite polymer materials using carbon nanotube comprising the steps of:
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manufacturing master alloys by combining carbon nanotubes and metal powders or generating the carbon nanotubes (including carbide nano particles) in the metal powders; mixing the master alloy or the metal powders wherein the carbon nanotubes are generated, with polymer materials; growing the carbon nanotubes by melting the mixture by a heater; injection-molding the mixed melting material; and aging the injection-molded product. - View Dependent Claims (11, 12)
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Specification