CN109482865A - A method of high-content graphene nanometer sheet/carbon/carbon-copper composite material is prepared in situ - Google Patents
A method of high-content graphene nanometer sheet/carbon/carbon-copper composite material is prepared in situ Download PDFInfo
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- CN109482865A CN109482865A CN201811066567.3A CN201811066567A CN109482865A CN 109482865 A CN109482865 A CN 109482865A CN 201811066567 A CN201811066567 A CN 201811066567A CN 109482865 A CN109482865 A CN 109482865A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/16—Metallic particles coated with a non-metal
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/12—Both compacting and sintering
- B22F3/14—Both compacting and sintering simultaneously
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- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/16—Making metallic powder or suspensions thereof using chemical processes
- B22F9/18—Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds
- B22F9/24—Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds starting from liquid metal compounds, e.g. solutions
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- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
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- C22C1/00—Making non-ferrous alloys
- C22C1/04—Making non-ferrous alloys by powder metallurgy
- C22C1/05—Mixtures of metal powder with non-metallic powder
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
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- C22C9/00—Alloys based on copper
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/22—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the deposition of inorganic material, other than metallic material
- C23C16/26—Deposition of carbon only
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Abstract
High-content graphene nanometer sheet/carbon/carbon-copper composite material method is prepared in situ the present invention relates to a kind of, comprising: (1) prepare sucrose/copper powders；(2) it prepares graphene nanometer sheet/copper composite powder: above-mentioned mixed-powder being fitted into Noah's ark and is added in quartz tube furnace, at 700-900 DEG C, with H2It is to carry out calcining reduction under the conditions of protective atmosphere for also Primordial Qi, Ar, calcination time 5-15min makes sucrose catalysis generate graphene nanometer sheet, then polished obtains graphene nanometer sheet/copper composite powder；(3) layer structure of copper-coating compound powder is prepared.It is continuously coated three times or more according to step (1)-(3) method, obtains high-content graphene nanometer sheet/copper composite powder.
Description
Technical field
Growth in situ, dipping reduction and combining powder metallurgical technology synthesis of high content graphene are utilized the present invention relates to a kind of
Nanometer sheet/carbon/carbon-copper composite material method, belongs to metal-base composites preparation technical field.
Background technique
Copper and its alloy have the features such as excellent conduction, thermal conductivity, corrosion resistance and excellent processing performance, so that its
There is highly important status in industrial departments such as electronics, electric power, but because it is lower with intensity, wears no resistance, it is easily soft under high temperature
The disadvantages of change deformation, thermal expansion coefficient is larger, it is limited by very large its application field.Graphene is a kind of current ideal
Nanometer activeness and quietness material, the surface of fold helps to improve its binding force and contact area between basal body interface, and
Its unique two-dimensional structure then can effectively hinder the migration of dislocation and substantially reduce extension and the digestion of composite material fine cracks
Fall this (destructiveness) energy, in addition, graphene also has high intensity, Young's modulus, good electric conductivity and thermal conductivity, resistance
A series of outstanding performances such as Buddhist nun's capacity and lower thermal expansion coefficient.By copper and graphene carry out it is compound prepare it is copper-based compound
Material is expected to improve its intensity on the basis of holding copper original excellent properties, to meet it in the application demand of electronic field.
So far, there are many researchs about graphene enhancing Cu-base composites, but all concentrate on and utilize mostly
The graphene of low content improves the intensity of Cu-base composites, and high-content graphene is added often reduces intensity.Meanwhile
There is the addition of the graphene and its derivative of small part research and inquirement high-content for the castering action of copper heating conduction, but does not say
Influence of the addition of bright graphene to composite material strength.To sum up, the more graphene inevitably group of being faced with is added
Poly- problem, so that the original intensity of copper be made to be greatly affected.Therefore, it is badly in need of improving high-content graphene/copper-based at present
The strength problem of composite material extends the application field of Cu-base composites to improve the comprehensive performance of Cu-base composites.
Currently, existing research personnel synthesize graphite in Copper Powder Surface in the way of solid carbon source chemical vapor deposition
Alkene.The present invention is using solid carbon source chemical vapor deposition repeatedly and the technique of dipping reduction copper nitrate is combined to prepare copper/graphite
Alkene nanometer sheet composite powder solves the problems, such as that high-content graphene is easy to reunite with this, and is made by subsequent hot pressing, hot rolling technology
It is densified, and prepares high-content graphene nanometer sheet/Cu-base composites with higher-strength.
Summary of the invention
The present invention intends to solve high-content graphene/bad problem of Cu-base composites intensity, provides a kind of feasible system
The method of standby high-content graphene/copper composite material.This method can effectively improve high-content graphene reunite the problem of, make its
More uniform dispersion is realized in composite material, and is further densified in conjunction with subsequent rolling process, and being made has higher-strength
High-content graphene/copper composite material.To reach above-mentioned target, the present invention is realized by the following technical programs,
A method of high-content graphene nanometer sheet/carbon/carbon-copper composite material being prepared in situ, feature includes following procedure:
(1) sucrose/copper powders are prepared
By copper powder with sucrose by 24:(0.32-0.64) quality proportioning mixed in alcoholic solution, and in water-bath
In be stirred and be evaporated, dry again later, be ground into thinner mixed-powder；
(2) graphene nanometer sheet/copper composite powder is prepared
Above-mentioned mixed-powder is fitted into Noah's ark to be added in quartz tube furnace, at 700-900 DEG C, with H2It is for also Primordial Qi, Ar
Calcining reduction is carried out under the conditions of protective atmosphere, calcination time 5-15min makes sucrose catalysis generate graphene nanometer sheet, then passes through
Graphene nanometer sheet/copper composite powder is obtained after grinding；
(3) layer structure of copper-coating compound powder is prepared
The quality proportioning for being 24:3.4-3.8 according to the quality proportioning of copper powder and copper nitrate, weighs copper nitrate, by step (2)
In graphene nanometer sheet/copper composite powder mixed in alcoholic solution with copper nitrate, stir and be evaporated in water-bath, then
Mixed-powder is obtained after oven drying, is put it into quartz ampoule, at 350-450 DEG C, with H2To be gone back under reducing atmosphere condition
Former 90min, obtains copper-coating compound powder, continuously coats three times or more according to step (1)-(3) method, obtains high-content
Graphene nanometer sheet/copper composite powder.
By it is obtained as above to high-content graphene nanometer sheet/copper composite powder block material is obtained after vacuum heating-press sintering
Material, and further densified by the hot rolling technology of 50% drafts, finally obtain fine and close block composite material.
With it is existing prepare high-content graphene/Cu-base composites method compared with, both without such as laminated rolling method
Equally complicated technical process, and more can guarantee uniformity that graphene nanometer sheet disperses in Copper substrate than other outer additions,
Eliminate the influence that graphene is reunited for composite material strength.So that Cu-base composites have preferably on the electronic devices
Application prospect.
Detailed description of the invention
Fig. 1 a is the scanned photograph that first time solid carbon source chemical vapor deposition generates graphene in embodiment 1.
Fig. 1 b is in embodiment 1 after dipping reduction for the first time, and second of solid carbon source chemical vapor deposition generates graphene
Scanned photograph.
Fig. 1 c is in embodiment 1 after second of dipping reduction, and third time solid carbon source chemical vapor deposition generates graphene
Scanned photograph.
Fig. 2 a is the scanned photograph that first time solid carbon source chemical vapor deposition generates graphene in embodiment 2.
Fig. 2 b is in embodiment 2 after dipping reduction for the first time, and second of solid carbon source chemical vapor deposition generates graphene
Scanned photograph.
Fig. 2 c is in embodiment 2 after second of dipping reduction, and third time solid carbon source chemical vapor deposition generates graphene
Scanned photograph.
Fig. 3 is the transmission photo that graphene is generated in embodiment 2.
Fig. 4 a and Fig. 4 b are the scanned photograph of stretching fracture in embodiment 2.
Fig. 5 a is the scanned photograph that first time solid carbon source chemical vapor deposition generates graphene in embodiment 3.
Fig. 5 b is in embodiment 3 after dipping reduction for the first time, and second of solid carbon source chemical vapor deposition generates graphene
Scanned photograph.
Fig. 5 c is in embodiment 3 after second of dipping reduction, and third time solid carbon source chemical vapor deposition generates graphene
Scanned photograph.
Tensile strength curve in Fig. 6 embodiment 1,2,3,4.
Specific embodiment
The present invention is further illustrated below with reference to embodiment, and the embodiments are used only to illustrate the invention for these, is not intended to limit this
Invention.
Embodiment 1
It is described by step (1), (2), (3).Copper powder (5 μm of spherical copper powders) 24g, sucrose 0.32g is added to alcohol first
In the mixed solution of (40ml) and water (20ml), it is evaporated in 75 DEG C of water-baths, then put it into vacuum drying oven and dry,
Powder is put into tube furnace after grinding and carries out reduction treatment.Temperature is set in 800 DEG C, and reducing atmosphere is hydrogen (gas flow
It is set in 100-200ml/min), protective atmosphere is argon gas (gas flow is set in 100-200ml/min), and the recovery time is
5min obtains graphene nanometer sheet/copper composite powder after carrying out reduction.Again by composite powder and copper nitrate (3.63g) alcoholic solution
(50-60ml) mixing, 70 DEG C of stirrings of water-bath are evaporated, and powder is put into tube furnace after grinding and carries out reduction treatment by baking oven drying.
Temperature is set in 400 DEG C, and reducing atmosphere is hydrogen (gas flow is set in 100-200ml/min).According to such as step (3) institute
The mode of stating recycles three times, obtains high-content graphene nanometer sheet/copper composite powder.Gained powder scanning figure is as schemed after each step
Shown in 1.Composite powder is carried out in vacuum sintering funace hot-forming, in vacuum sintering furnace, pressure is set as
50MPa, temperature are 800 DEG C, and dwell time 1-2h cools to room temperature with the furnace after pressure maintaining.Then by hot pressing block 800
2-3min is kept the temperature under the conditions of DEG C, in the hot rolling for carrying out each drafts 0.1-0.2mm, finally accumulative drafts is 50% or so.
Tensile Properties of Composites obtained by test, tensile strength reach 218MPa under universal testing machine.Tensile strength curve such as Fig. 6
Shown in curve 4.
Embodiment 2
Copper powder (5 μm of spherical copper powders) 24g, sucrose 0.48g is added to the mixed solution of alcohol (40ml) and water (20ml)
In, it is evaporated in 75 DEG C of water-baths, then put it into vacuum drying oven and dry, by powder according in embodiment 1 after grinding
The step of carry out solid carbon source chemical vapor deposition (recovery time is adjusted to 10min) and dipping restore circulation experiment, obtain
High-content graphene nanometer sheet/copper composite powder.Gained powder scanning figure is as shown in Figure 2 after each step.Generate graphene
Transmission plot is as shown in Figure 3.Composite powder is subjected to hot pressing, hot rolling according to the parameter in embodiment 1, finally accumulative drafts is
50% or so.Tensile Properties of Composites obtained by test, tensile strength reach 237MPa under universal testing machine.Fracture apperance
As shown in figure 4, tensile strength curve is as shown in Fig. 6 curve 3.
Embodiment 3
Copper powder (5 μm of spherical copper powders) 24g, sucrose 0.64g is added to the mixed solution of alcohol (40ml) and water (20ml)
In, it is evaporated in 75 DEG C of water-baths, then put it into vacuum drying oven and dry, by powder according in embodiment 1 after grinding
The step of carry out solid carbon source chemical vapor deposition (recovery time is adjusted to 15min) and dipping restore circulation experiment, obtain
High-content graphene nanometer sheet/copper composite powder.Gained powder scanning figure is as shown in Figure 5 after each step.By composite powder according to
Hot pressing, hot rolling are carried out according to the parameter in embodiment 1, finally accumulative drafts is 50% or so.Institute is tested under universal testing machine
Tensile Properties of Composites is obtained, tensile strength reaches 220MPa.Tensile strength curve is as shown in Fig. 6 curve 2.
Embodiment 4
By copper powder (5 μm of spherical copper powders) 24g, hot pressing, hot rolling, final accumulative pressure are carried out according to the parameter in embodiment 1
Amount is 50% or so.Its tensile property is tested under universal testing machine, tensile strength reaches 202MPa.Tensile strength curve is such as
Shown in 6 curves 1.
High-content graphene nanometer sheet/copper it can be seen from four stress strain curves in Fig. 6 relative to the method synthesis
Composite material strength, which has, to be obviously improved, in copper: when sucrose=24:0.48 (curve 3), the tensile strength of composite material reaches
Peak value (237MPa), the tensile strength (202MPa) compared to fine copper are higher by 12.4%, then increase or decrease carbon source content and can all make
The decline of its performance.
Claims (2)
1. a kind of be prepared in situ high-content graphene nanometer sheet/carbon/carbon-copper composite material method, feature includes following procedure:
(1) sucrose/copper powders are prepared
By copper powder with sucrose by 24:(0.32-0.64) quality proportioning mixed in alcoholic solution, and in water-bath into
Row stirring is evaporated, and is dried again later, is ground into thinner mixed-powder；
(2) graphene nanometer sheet/copper composite powder is prepared
Above-mentioned mixed-powder is fitted into Noah's ark to be added in quartz tube furnace, at 700-900 DEG C, with H2It is protection gas for also Primordial Qi, Ar
Calcining reduction is carried out under the conditions of atmosphere, calcination time 5-15min makes sucrose catalysis generate graphene nanometer sheet, then polished
Obtain graphene nanometer sheet/copper composite powder；
(3) layer structure of copper-coating compound powder is prepared
The quality proportioning for being 24:3.4-3.8 according to the quality proportioning of copper powder and copper nitrate, weighs copper nitrate, will be in step (2)
Graphene nanometer sheet/copper composite powder is mixed in alcoholic solution with copper nitrate, is stirred and is evaporated in water-bath, then through drying
Mixed-powder is obtained after case is dry, is put it into quartz ampoule, at 350-450 DEG C, with H2To be restored under reducing atmosphere condition
90min obtains copper-coating compound powder, continuously coats three times or more according to step (1)-(3) method, obtains high-content stone
Black alkene nanometer sheet/copper composite powder.
2. according to claim 1 be prepared in situ high-content graphene nanometer sheet/carbon/carbon-copper composite material method, feature exists
In preparing composite material block according to the methods below after (3): obtained high-content graphene nanometer sheet/copper is compound
Powder obtains block materials after vacuum heating-press sintering, and is further densified by the hot rolling technology of 50% drafts, finally
Obtain fine and close block composite material.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110695373A (en) * | 2019-10-14 | 2020-01-17 | 天津大学 | Preparation method of graphene-coated rare earth element-loaded copper composite material with double-layer harmonic structure |
| CN114226719A (en) * | 2021-11-12 | 2022-03-25 | 深圳前海石墨烯产业有限公司 | Graphene manganese-copper-based damping material powder, alloy damping material, preparation method and application |
| CN116003134A (en) * | 2022-12-09 | 2023-04-25 | 中航装甲科技有限公司 | Boron carbide-based composite material and preparation method and application thereof |
| CN117463999A (en) * | 2023-12-28 | 2024-01-30 | 天津大学 | Copper-based conductive composite material and preparation method and application thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102218540A (en) * | 2010-04-14 | 2011-10-19 | 韩国科学技术院 | Graphene/metal nanocomposite powder and method of manufacturing the same |
| US20120024109A1 (en) * | 2010-07-30 | 2012-02-02 | Zhiyue Xu | Nanomatrix metal composite |
| CN105081312A (en) * | 2015-08-17 | 2015-11-25 | 天津大学 | Method for preparing grapheme/copper composite material by loading solid carbon source on copper powder surface in impregnation manner |
| CN105525124A (en) * | 2016-02-02 | 2016-04-27 | 天津大学 | Preparation method for in-situ synthesis of three-dimensional graphene-reinforced copper-based composite material |
| CN106521204A (en) * | 2016-12-16 | 2017-03-22 | 天津大学 | Preparation method of in-situ grown graphene reinforced metal-based composite material |
| CN106834776A (en) * | 2016-12-16 | 2017-06-13 | 天津大学 | Ni Graphenes heteromers strengthen the preparation method of 6061 alloy-base composite materials |
-
2018
- 2018-09-12 CN CN201811066567.3A patent/CN109482865A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102218540A (en) * | 2010-04-14 | 2011-10-19 | 韩国科学技术院 | Graphene/metal nanocomposite powder and method of manufacturing the same |
| US20120024109A1 (en) * | 2010-07-30 | 2012-02-02 | Zhiyue Xu | Nanomatrix metal composite |
| CN105081312A (en) * | 2015-08-17 | 2015-11-25 | 天津大学 | Method for preparing grapheme/copper composite material by loading solid carbon source on copper powder surface in impregnation manner |
| CN105525124A (en) * | 2016-02-02 | 2016-04-27 | 天津大学 | Preparation method for in-situ synthesis of three-dimensional graphene-reinforced copper-based composite material |
| CN106521204A (en) * | 2016-12-16 | 2017-03-22 | 天津大学 | Preparation method of in-situ grown graphene reinforced metal-based composite material |
| CN106834776A (en) * | 2016-12-16 | 2017-06-13 | 天津大学 | Ni Graphenes heteromers strengthen the preparation method of 6061 alloy-base composite materials |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110695373A (en) * | 2019-10-14 | 2020-01-17 | 天津大学 | Preparation method of graphene-coated rare earth element-loaded copper composite material with double-layer harmonic structure |
| CN110695373B (en) * | 2019-10-14 | 2022-05-10 | 天津大学 | Preparation method of graphene-coated rare earth element-loaded copper composite material with double-layer harmonic structure |
| CN114226719A (en) * | 2021-11-12 | 2022-03-25 | 深圳前海石墨烯产业有限公司 | Graphene manganese-copper-based damping material powder, alloy damping material, preparation method and application |
| CN114226719B (en) * | 2021-11-12 | 2023-10-03 | 深圳前海石墨烯产业有限公司 | Graphene manganese copper-based damping material powder, alloy damping material, preparation method and application |
| CN116003134A (en) * | 2022-12-09 | 2023-04-25 | 中航装甲科技有限公司 | Boron carbide-based composite material and preparation method and application thereof |
| CN116003134B (en) * | 2022-12-09 | 2024-03-12 | 中航装甲科技有限公司 | Boron carbide-based composite material and preparation method and application thereof |
| CN117463999A (en) * | 2023-12-28 | 2024-01-30 | 天津大学 | Copper-based conductive composite material and preparation method and application thereof |
| CN117463999B (en) * | 2023-12-28 | 2024-03-22 | 天津大学 | Copper-based conductive composite material and preparation method and application thereof |
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Application publication date: 20190319 |