CN103614583A - Novel high-conductivity and high-strength graphene/copper material and preparation method thereof - Google Patents
Novel high-conductivity and high-strength graphene/copper material and preparation method thereof Download PDFInfo
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- CN103614583A CN103614583A CN201310450476.0A CN201310450476A CN103614583A CN 103614583 A CN103614583 A CN 103614583A CN 201310450476 A CN201310450476 A CN 201310450476A CN 103614583 A CN103614583 A CN 103614583A
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Abstract
The present invention discloses a novel high-conductivity and high-strength graphene/copper material and a preparation method thereof. The material is characterized by comprising, by mass, 1.0-1.5% of C (a graphene state), and the balance of Cu and inevitable impurities. According to the present invention, explosion sintering is adopted to mix powder, such that the mixed powder is subjected to integrated collision, extrusion, friction and welding during the explosion moment to form the compact composite material, the original excellent performance of the graphene is maintained, and the material has higher strength and higher conductivity than the pure copper, and is an excellent high-strength conductive material.
Description
Technical field
The present invention relates to a kind of novel high conductivity, high strength graphite alkene/copper product and preparation method thereof, belong to metal composite field.
Background technology
In the past few years, graphene composite material has attracted the very large concern of scientific research circle, and this is because it has very good performance, for example very high physical strength, electric property and thermal conductivity and optical transmittance.Now researchist has found the method for manufacturing individual layer and multi-layer graphene and a small amount of graphene oxide, and what this will cause that graphene composite material widely applies emerges in large numbers.
A few days ago, in graphene composite material field, less about the achievement in research of Graphene/metal composite, this may be because chemical reaction easily occurs at interface for Graphene and metal matrix.The research team of Korea Advanced Institute of Science and Technology is used chemical vapour deposition (CVD) to grow single-layer graphene in metal deposition substrate, and then the upper metal single layer of deposition, after repeatable operation, finally obtains the matrix material of Graphene/metallic multilayer structure.By microcosmic compression testings such as transmission electron microscope, molecular dynamics simulations, show, the spacing of graphene/nickel multilayer material is 100nm, and tensile strength is 180 times (4.0GPa) of pure nickel, exists significantly associated between spacing and the strength of materials.Correlative study result has been distributed on Nature Communications periodical.
But above-mentioned preparation method rests in molecule aspect, be difficult to prepare on a large scale Graphene/metal-base composites; And if adopt the method for ordinary sinter, under molten state, there is chemical reaction in Graphene and metal matrix at interface, make Graphene lose its premium properties.
Summary of the invention
Goal of the invention: for the deficiencies in the prior art, the object of this invention is to provide a kind of novel high conductivity, high strength graphite alkene/copper-based material and preparation method thereof.This preparation method can avoid high sintering temperature, makes Graphene in metallic matrix, keep original premium properties.
Technical scheme: in order to realize foregoing invention object, the technical solution used in the present invention is:
Novel high conductivity, a high strength graphite alkene copper-based material, the mass percent of the composition of described material is expressed as follows: C (Graphene state): 1.0%～1.5%, its surplus is Cu and inevitable impurity.
Its preparation method is:
(1) by granularity, be that 200 orders, the purity copper powder that is 99.99% and thickness are about the Graphene powder that 5 carbon atom thickness, diameter are about 20nm and mix according to aforementioned proportion.
(2) powder mixing in step (1) is put into ball mill, carry out high-energy ball milling, ratio of grinding media to material is 10: 1, and rotating speed is 300r/min, ball milling 20h under argon shield environment.Make in powder all kinds of particles in the process that is knocked, pushes, distortion, broken, cold welding, along with the increase of Ball-milling Time, in crystal grain thinning, surround mutually, produces non-equilibrium alloy phase, forms supersaturated solid solution.
(3) mixed powder after ball milling (5) is packed in the steel cylinder (4) of diameter 20mm, slightly after compacting, reach 50% of theoretical density, and seal nozzle.Outer emulsion explosive (3) parcel of using, is placed in plastic cartridge casep (2), and inserts detonator (1) on top.Light detonator (1), from the fired charge of top, produce the shock wave of propagating with explosion velocity from top to bottom, pressure can reach 6.77GPa.Between mixed powder (5), sharp impacts, extruding, friction, be wrapped in particle surface molten solder together, formed fine and close matrix material.
(4) follow-up diffusion-sintering: the matrix material after explosive sintering is carried out to the solid state sintering of 980 ℃ again, and the time is 1h left and right, further improves the density of compacts.Thereby make required novel high conductivity, high strength graphite alkene/copper product.
Beneficial effect of the present invention: the feature of maximum of the present invention is to produce a kind of novel high conductivity, high strength graphite alkene copper-based material, and a kind of brand-new preparation method is provided, and this material has high electrical conductivity, high strength.
Accompanying drawing explanation
Fig. 1 is this material explosive sintering link scheme of installation.
Embodiment
Embodiment 1:
A kind of novel high conductivity, high strength graphite alkene/copper-based material and preparation method thereof.This preparation method can avoid high sintering temperature, makes Graphene in metallic matrix, keep original premium properties.
Technical scheme: in order to realize foregoing invention object, the technical solution used in the present invention is:
Novel high conductivity, a high strength graphite alkene copper-based material, the mass percent of the composition of described material is expressed as follows: C (Graphene state): 1.0%～1.5%, its surplus is Cu and inevitable impurity.
Its preparation method is:
(1) by granularity, be that 200 orders, the purity copper powder that is 99.99% and thickness are about the Graphene powder that 5 carbon atom thickness, diameter are about 20nm and mix according to aforementioned proportion.
(2) powder mixing in step (1) is put into ball mill, carry out high-energy ball milling, ratio of grinding media to material is 10: 1, and rotating speed is 300r/min, ball milling 20h under argon shield environment.Make in powder all kinds of particles in the process that is knocked, pushes, distortion, broken, cold welding, along with the increase of Ball-milling Time, in crystal grain thinning, surround mutually, produces non-equilibrium alloy phase, forms supersaturated solid solution.
(3) mixed powder after ball milling (5) is packed in the steel cylinder (4) of diameter 20mm, slightly after compacting, reach 50% of theoretical density, and seal nozzle.Outer emulsion explosive (3) parcel of using, is placed in plastic cartridge casep (2), and inserts detonator (1) on top.Light detonator (1), from the fired charge of top, produce the shock wave of propagating with explosion velocity from top to bottom, pressure can reach 6.77GPa.Between mixed powder (5), sharp impacts, extruding, friction, be wrapped in particle surface molten solder together, formed fine and close matrix material.
(4) follow-up diffusion-sintering: the matrix material after explosive sintering is carried out to the solid state sintering of 980 ℃ again, and the time is 1h left and right, further improves the density of compacts.Thereby make required novel high conductivity, high strength graphite alkene/copper product.
Beneficial effect of the present invention: the feature of maximum of the present invention is to produce a kind of novel high conductivity, high strength graphite alkene copper-based material, and a kind of brand-new preparation method is provided, and this material has high electrical conductivity, high strength.
Through check, the electric conductivity of this compound nucleus reaction core pressure vessel material is oxygen free copper 115%, and under normal temperature, tensile strength has reached 326MPa, is a kind of good high-strength conductive material.
Claims (2)
1. a novel high conductivity, high strength graphite alkene/copper product and preparation method thereof, is characterized in that: the mass percent of the composition of described material is expressed as follows: C (Graphene state): 1.0%～1.5%, and its surplus is Cu and inevitable impurity.
2. a novel high conductivity, high strength graphite alkene/copper product and preparation method thereof, is characterized in that its preparation method comprises following content:
(1) by granularity, be that 200 orders, the purity copper powder that is 99.99% and thickness are about the Graphene powder that 5 carbon atom thickness, diameter are about 20nm and mix according to aforementioned proportion.
(2) powder mixing in step (1) is put into ball mill, carry out high-energy ball milling, ratio of grinding media to material is 10: 1, and rotating speed is 300r/min, ball milling 20h under argon shield environment.Make in powder all kinds of particles in the process that is knocked, pushes, distortion, broken, compound.Along with the increase of Ball-milling Time, in crystal grain thinning, mutually surround, produce non-equilibrium alloy phase, form supersaturated solid solution.
(3) mixed powder after ball milling (5) is packed in the steel cylinder (4) of diameter 20mm, slightly after compacting, reach 50% of theoretical density, and seal nozzle.Outer emulsion explosive (3) parcel of using, is placed in plastic cartridge casep (2), and inserts detonator (1) on top.Light detonator (1), from the fired charge of top, produce the shock wave of propagating with explosion velocity from top to bottom, pressure can reach 6.77GPa.Between mixed powder (5), sharp impacts, extruding, friction, weld together, and formed fine and close matrix material.
(4) follow-up diffusion-sintering: the matrix material after explosive sintering is carried out to the solid state sintering of 980 ℃ again, and the time is 1h left and right, further improves the density of compacts.Thereby make required novel high conductivity, high strength graphite alkene/copper product.
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Cited By (15)
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|---|---|---|---|---|
| CN103952588A (en) * | 2014-05-08 | 2014-07-30 | 江西理工大学 | High-strength and high-conductivity graphene copper-based composite material and preparation method thereof |
| CN104805483A (en) * | 2015-05-15 | 2015-07-29 | 国家电网公司 | Preparation method for copper bus bar with high strength and high electrical conductivity |
| CN105543545A (en) * | 2016-01-13 | 2016-05-04 | 盐城工学院 | Short carbon fiber composite graphene reinforced copper base wear resistant material and preparation method thereof |
| CN105648264A (en) * | 2016-01-13 | 2016-06-08 | 盐城工学院 | High conductivity and high abrasion resistance graphene/copper base composite material and preparation method thereof |
| CN105714139A (en) * | 2016-02-22 | 2016-06-29 | 宁波博威合金材料股份有限公司 | Copper-graphene composite material and preparation method thereof |
| CN106379890A (en) * | 2015-07-21 | 2017-02-08 | 财团法人工业技术研究院 | Graphene flower, forming method thereof and composite material |
| CN108570573A (en) * | 2017-03-22 | 2018-09-25 | 刘爽 | A kind of preparation method of high-tensile acid bronze alloy blank |
| CN109207780A (en) * | 2018-09-17 | 2019-01-15 | 南昌大学 | A kind of milling method enhancing AZ31 magnesium alloy |
| CN109554628A (en) * | 2018-11-23 | 2019-04-02 | 中国航发北京航空材料研究院 | The preparation method of graphene composite high speed tool steel |
| CN110257663A (en) * | 2019-07-09 | 2019-09-20 | 上海帛汉新材料科技有限公司 | A kind of preparation method of graphene enhancing Cu-base composites |
| CN111020263A (en) * | 2019-12-19 | 2020-04-17 | 哈尔滨工业大学（威海） | Plastic processing preparation method of high-strength high-conductivity graphene reinforced copper-based composite material |
| CN111020279A (en) * | 2019-12-26 | 2020-04-17 | 浙江杭机新型合金材料有限公司 | High-strength high-conductivity copper-graphite composite material and preparation method thereof |
| CN112063873A (en) * | 2020-09-19 | 2020-12-11 | 广西大学 | Graphene reinforced copper-based composite material and warm-pressing forming preparation method thereof |
| CN112349667A (en) * | 2019-08-09 | 2021-02-09 | 昆山微电子技术研究院 | Preparation method of graphene/copper composite metal interconnection line |
| CN112359244A (en) * | 2020-10-21 | 2021-02-12 | 有研工程技术研究院有限公司 | High-strength high-conductivity graphene copper composite wire and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103952588A (en) * | 2014-05-08 | 2014-07-30 | 江西理工大学 | High-strength and high-conductivity graphene copper-based composite material and preparation method thereof |
| CN104805483A (en) * | 2015-05-15 | 2015-07-29 | 国家电网公司 | Preparation method for copper bus bar with high strength and high electrical conductivity |
| CN106379890A (en) * | 2015-07-21 | 2017-02-08 | 财团法人工业技术研究院 | Graphene flower, forming method thereof and composite material |
| CN106379890B (en) * | 2015-07-21 | 2018-09-11 | 财团法人工业技术研究院 | Graphene flower, forming method thereof and composite material |
| CN105543545A (en) * | 2016-01-13 | 2016-05-04 | 盐城工学院 | Short carbon fiber composite graphene reinforced copper base wear resistant material and preparation method thereof |
| CN105648264A (en) * | 2016-01-13 | 2016-06-08 | 盐城工学院 | High conductivity and high abrasion resistance graphene/copper base composite material and preparation method thereof |
| CN105543545B (en) * | 2016-01-13 | 2017-04-26 | 盐城工学院 | Short carbon fiber composite graphene reinforced copper base wear resistant material and preparation method thereof |
| CN105714139A (en) * | 2016-02-22 | 2016-06-29 | 宁波博威合金材料股份有限公司 | Copper-graphene composite material and preparation method thereof |
| CN108570573A (en) * | 2017-03-22 | 2018-09-25 | 刘爽 | A kind of preparation method of high-tensile acid bronze alloy blank |
| CN109207780A (en) * | 2018-09-17 | 2019-01-15 | 南昌大学 | A kind of milling method enhancing AZ31 magnesium alloy |
| CN109207780B (en) * | 2018-09-17 | 2020-07-14 | 南昌大学 | Rolling method for reinforcing AZ31 magnesium alloy |
| CN109554628A (en) * | 2018-11-23 | 2019-04-02 | 中国航发北京航空材料研究院 | The preparation method of graphene composite high speed tool steel |
| CN110257663A (en) * | 2019-07-09 | 2019-09-20 | 上海帛汉新材料科技有限公司 | A kind of preparation method of graphene enhancing Cu-base composites |
| CN112349667A (en) * | 2019-08-09 | 2021-02-09 | 昆山微电子技术研究院 | Preparation method of graphene/copper composite metal interconnection line |
| CN111020263A (en) * | 2019-12-19 | 2020-04-17 | 哈尔滨工业大学（威海） | Plastic processing preparation method of high-strength high-conductivity graphene reinforced copper-based composite material |
| CN111020279A (en) * | 2019-12-26 | 2020-04-17 | 浙江杭机新型合金材料有限公司 | High-strength high-conductivity copper-graphite composite material and preparation method thereof |
| CN111020279B (en) * | 2019-12-26 | 2021-08-17 | 浙江杭机新型合金材料有限公司 | High-strength high-conductivity copper-graphite composite material and preparation method thereof |
| CN112063873A (en) * | 2020-09-19 | 2020-12-11 | 广西大学 | Graphene reinforced copper-based composite material and warm-pressing forming preparation method thereof |
| CN112359244A (en) * | 2020-10-21 | 2021-02-12 | 有研工程技术研究院有限公司 | High-strength high-conductivity graphene copper composite wire and preparation method thereof |
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