CN108359825A - A kind of preparation method of ceramics-graphene enhancing Cu-base composites - Google Patents
A kind of preparation method of ceramics-graphene enhancing Cu-base composites Download PDFInfo
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- CN108359825A CN108359825A CN201810140966.3A CN201810140966A CN108359825A CN 108359825 A CN108359825 A CN 108359825A CN 201810140966 A CN201810140966 A CN 201810140966A CN 108359825 A CN108359825 A CN 108359825A
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- 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
- C22C—ALLOYS
- C22C32/00—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ
- C22C32/0084—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ carbon or graphite as the main non-metallic constituent
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C9/00—Alloys based on copper
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Abstract
The invention belongs to field of compound material, more particularly to a kind of preparation method of ceramic graphene enhancing Cu-base composites.The method is with copper powder, graphite, Al2O3Powder, Fe powder, crystalline flake graphite are raw material, and ball milling is carried out to raw material using ball mill.Mixed-powder is put into graphite jig after ball milling, is sintered using vacuum hotpressing stove, constant temperature is kept in maximum sintering temperature and applies pressure.Release after sintering, furnace cooling cause room temperature, and prepared material, which is the ceramic graphene of the present invention, enhances Cu-base composites.The method of the present invention is simple, and the ceramic graphene of preparation enhancing Cu-base composites have specific strength and specific stiffness height, excellent abrasion resistance properties, good thermal conductivity, be widely used in making be hit, the wear-resistant parts in mineral environment easy to wear.
Description
Technical field
The invention belongs to field of compound material, more particularly to the preparation of a kind of ceramics-graphene enhancing Cu-base composites
Method.
Background technology
The hot copper alloy of high-strength conductive is a kind of new function material with excellent comprehensive performance, both has excellent lead
Electric heating, and there is high intensity and superior high-temperature behavior, it is considered to be the novel work(of great development potentiality and application prospect
It can material.But since copper alloy carrying particle is less, wearability is poor, dispersoid particle can grow up under the high temperature conditions, and and copper
Matrix forms solid solution, and mechanical strength is caused to reduce, and the contradiction of mechanical performance and conductive hot property does not obtain very well always yet
It solves.Cu-base composites are that a certain amount of high-melting-point, high-modulus, resistance to is added in fine copper by advanced material preparation process
Mill and heat safe second phase reinforced phase, had both played the synergistic effect of matrix and reinforcer, increased single component materials institute not
Attainable comprehensive performance.Since fine copper matrix strength is relatively low so that the mechanical strength of composite material is promoted limited, it is difficult to fully
The invigoration effect of enhancing particle is played, especially under the conditions of high temperature and top load, the bearing capacity of material is substantially reduced, and is caused
The failure of material.The volume of the reinforced phase of disperse is more than 20% in Cu-base composites, can embody the excellent properties of reinforced phase.
Method for composite material mainly has stirring casting method, squeeze casting method, powder metallurgic method etc..Wherein powder metallurgy process can make
The advantage for being scattered in Copper substrate that added graphene is more uniformly distributed is obtained, to obtain more excellent performance.
Stirring casting method：
Stirring casting method is stirred strongly to metal bath, puts into Second Phase Particle, it is made to be uniformly distributed in metal
Melt, subsequent cast molding.The method is simple for process, is convenient for industrialized production.But Second Phase Particle volume fraction is restricted,
And be difficult to that Second Phase Particle is made to homogenize, ingot casting can only be made, need secondary operation.
Powder metallurgic method：
Powder metallurgic method is to mix solid metallic powder and enhancing particle mechanical uniform, in certain temperature and pressure item
Sinter molding is suppressed under part.PM technique has the advantages that some uniquenesses, and such as manufacture temperature is relatively low, alleviates matrix and increasing
Strong intergranular interfacial reaction, reduces the formation of hard compounds on interface, the volume fraction for enhancing particle is higher；Enhancing
Distribution of particles is more uniform, is less prone to segregation and segregation.But powder metallurgy also has shortcoming, as the size of product, shape by
To limitation；Process is more, long preparation period, of high cost, and the possibility for reducing cost is small.Especially expensive manufacturing cost system
The about application and development of powder metallurgy.
Squeeze casting method：
The method prepares the method that metal-base composites is very ripe.It is to be put into mold using reinforcement as prefabricated section,
Matrix alloy solution is poured into again, is then pressurizeed, and Matrix Solution is made to penetrate into prefabricated section ingot.Extrusion casint has the advantage that：Production
Period is short, is easy to produce in enormous quantities, can prepare the same or analogous product of shape of shape and end article.Liquid metal
The time of infiltration is short, and cooling velocity is fast, can reduce cause or even eliminate granular boundary reaction.The adjustable model of volume fraction of reinforced phase
It encloses big.But extrusion casint is not easy to prepare complex-shaped product, when infiltrate pressure it is very big when, to the complete of mold and institute's product
Property has a great impact.
It there is also some problems in terms of the preparation of particles reiforced metal-base composition at present：(1) particulates reinforcements
Influence of the volume fraction to the mechanical property of composite material is very big.But the volume fraction of prior art control reinforced phase is more tired
It is difficult.(2) reinforced phase is discontinuous in most of composite material.The study found that when reinforced phase in composite material and matrix are in mutual
When wearing network distribution structure, there is more excellent performance.(3) binding ability is usually weaker between ceramic phase and matrix.(4) load
When larger, parent metal low strength.
Invention content
It is an object of the invention to improve the mechanical property of matrix phase copper in existing metal-base composites, a kind of tool is provided
There are high-strength, high rigidity, ceramics-graphene of simple production process, excellent product performance to enhance Cu-base composites.
For overcome the deficiencies in the prior art, the technical scheme is that in this way solving：A kind of ceramics-graphene increasing
The preparation method of strong Cu-base composites, includes the following steps：
S100, crystalline flake graphite are put into blender and are stirred, and remove as graphene；
S200, copper powder, graphene are put into addition ball-milling medium progress mixing and ball milling in ball grinder；
S300, by graphite, Al2O3Powder, Fe powder, which are put into the good copper powder of ball milling, graphene mixture, continues ball milling；
S400, ball milling is got well after mixed powder be put into graphite jig, under the action of cold press, be pressed into required ruler
Very little green compact, green compact are sintered in company with graphite jig in vacuum hotpressing stove；
Release after S500, sintering, cools to room temperature with the furnace, and prepared material is ceramics-graphene enhancing copper
Based composites.
As being further improved for technical solution of the present invention, mixing speed is 300 turns/min in the step S100, described
Copper powder in step S200, graphene percent by volume be respectively 99.9vol% and 0.1vol%；Copper in the step S300
Powder and graphene mixture, graphite, Al2O3Powder, Fe powder mass percent be respectively 55~65wt%, 10~20wt%, 5~
15wt% and 10~20wt%.
As being further improved for technical solution of the present invention, the copper powder, Al2O3Powder, Fe powder purities are above 99.9%,
Granularity is less than 100 microns；Crystalline flake graphite, graphite purity are above 99.9%, 75 microns of granularity.
As being further improved for technical solution of the present invention, Ball-milling Time is 2~3 hours in the step S200, step
Ball-milling Time is 10~14 hours in S300, and ball-milling medium is zirconium carbide ball, ball grinder rotating speed 200r/min, in mechanical milling process
Absolute ethyl alcohol is added in ball grinder and is sealed.
As being further improved for technical solution of the present invention, sintering temperature when vacuum heating-press sintering in S400 in the step
Be 750~850 DEG C, heating rate is 15 DEG C/min, in stove vacuum degree maintain 9~13Pa hereinafter, sintering keep constant temperature 5~
10min。
As being further improved for technical solution of the present invention, in the step S400 in cold press to green compact apply pressure
Power is 20~30MPa.
It is 30~50MPa to the pressure that green compact applies in sintering process as being further improved for technical solution of the present invention.
Compared with the existing technology, preparation process is simple for the ceramics prepared in the present invention-graphene enhancing Cu-base composites
Single, tissue is comparatively dense, has excellent obdurability and abrasion resistance properties.And uniform Fe is distributed in Copper substrate of the present invention
Phase, Al2O3It is uniformly distributed in Copper substrate with graphite, there is more excellent performance.Even if when load is larger, matrix gold
It is still very high to belong to intensity.The method of the present invention is simple, and ceramics-graphene enhancing Cu-base composites of preparation have specific strength and ratio
Rigidity height, excellent abrasion resistance properties, good thermal conductivity, be widely used in make be hit, industrial and mineral ring easy to wear
Wear-resistant parts in border.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
Obtain other attached drawings according to these attached drawings.
Fig. 1 is the optics metallographic microstructure that ceramics of the present invention-graphene enhances Cu-base composites.
Specific implementation mode
To make the object, technical solutions and advantages of the present invention clearer, technical scheme of the present invention will be carried out below
Detailed description.Obviously, described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Base
Embodiment in the present invention, those of ordinary skill in the art are obtained all without making creative work
Other embodiment belongs to the range that the present invention is protected.
Technical scheme of the present invention is described in detail below in conjunction with the accompanying drawings.
A kind of preparation method of ceramics-graphene enhancing Cu-base composites, includes the following steps：
S100, crystalline flake graphite are put into blender and are stirred, and remove as graphene；
S200, copper powder, graphene are put into addition ball-milling medium progress mixing and ball milling in ball grinder；
S300, by graphite, Al2O3Powder, Fe powder, which are put into the good copper powder of ball milling, graphene mixture, continues ball milling；
S400, ball milling is got well after mixed powder be put into graphite jig, under the action of cold press, be pressed into required ruler
Very little green compact, green compact are sintered in company with graphite jig in vacuum hotpressing stove；
Release after S500, sintering, cools to room temperature with the furnace, and prepared material is ceramics-graphene enhancing copper
Based composites.
Preferably, mixing speed is 300 turns/min in the step S100, copper powder in the step S200, graphene
Percent by volume is respectively 99.9vol% and 0.1vol%；Copper powder and graphene mixture in the step S300, graphite,
Al2O3Powder, Fe powder mass percent be respectively 55~65wt%, 10~20wt%, 5~15wt% and 10~20wt%.
Preferred copper powder and graphene mixture in the present invention, graphite, Al2O3 powder, Fe powder mass percent be respectively 65wt%,
17wt%, 8wt% and 10wt%.
Further, the copper powder, Al2O3Powder, Fe powder purities are above 99.9%, and granularity is less than 100 microns；Scale stone
Ink, graphite purity are above 99.9%, 75 microns of granularity.
In the present invention, Ball-milling Time is 2~3 hours in the step S200, in step S300 Ball-milling Time be 10~
14 hours, ball-milling medium was zirconium carbide ball, and ball grinder rotating speed 200r/min adds absolute ethyl alcohol in mechanical milling process in ball grinder
And it seals.
Specifically, sintering temperature is 750~850 DEG C when vacuum heating-press sintering in S400 in the step, heating rate is
15 DEG C/min, vacuum degree maintains 9~13Pa hereinafter, sintering keeps 5~10min of constant temperature in stove.
Preferably, S400 is 20~30MPa to the pressure that green compact applies in cold press in the step.
Further, it is 30~50MPa to the pressure that green compact applies in sintering process.
The ceramics prepared in the present invention-graphene enhancing Cu-base composites preparation process is simple, and tissue is comparatively dense, tool
There are excellent obdurability and abrasion resistance properties.Ceramics-graphene as obtained by above step preparation enhances Cu-base composites
Have the characteristics that Copper substrate intensity is high, overall mechanical properties are high, wearability is high.
Embodiment 1
A kind of preparation method of ceramics-graphene enhancing Cu-base composites, includes the following steps：
S100, crystalline flake graphite are put into blender to be stirred with 300 turns/min, is removed as graphene.
S200, by copper powder, graphene according to volume ratio 99.9:It is packed into ball mill after 0.1 weighing, argon gas is filled in ball mill
Protection, be switched on ball milling, and Ball-milling Time is 2 hours.
S300, graphite, Al is added in the copper powder of gained, graphene mixed powder (M1) into S2002O3Powder, Fe powder, obtain
Mixture (M2), wherein in gained mixture the content of mixed powder M1 be 65%, content of graphite 15%, Al2O3Powder content
It is 13% for 7%, Fe powder contents；M2 is poured into ball mill, addition abrading-ball, absolute ethyl alcohol, carries out the lower secondary ball of argon gas protection
Mill, Ball-milling Time are 10 hours, rotating speed 200r/min.
After the completion of S400, M2 ball milling, by uniformly mixed copper powder, graphene, graphite, Al2O3, Fe powder mixtures M2 carries out
Dry, crushing, and in Fast Filling to graphite jig；The graphite jig that will be filled with uniform mixed-powder M2, is put into cold press
In, under the pressure of 20MPa, it is pressed into the green compact of required size；The green compact of gained is put into togerther vacuum in company with graphite jig
It is sintered in hot pressing furnace；Sintering carries out under vacuum, and heating applies 30MPa pressure in insulating process to green compact, in stove
Vacuum degree maintains 13Pa hereinafter, sintering temperature is 750 DEG C, and soaking time is 10 minutes.
It is cooled down together with sintering furnace after S500, sintering, obtains ceramics-graphene enhancing Cu-base composites.
Embodiment 2
A kind of preparation method of ceramics-graphene enhancing Cu-base composites, includes the following steps：
S100, crystalline flake graphite are put into blender to be stirred with 300 turns/min, is removed as graphene.
S200, by copper powder, graphene according to volume ratio 99.9:It is packed into ball mill after 0.1 weighing, argon gas is filled in ball mill
Protection, be switched on ball milling, and Ball-milling Time is 3 hours.
S300, graphite, Al is added in the copper powder of gained, graphene mixed powder (M1) into S2002O3Powder, Fe powder, obtain
Mixture (M2), wherein in gained mixture the content of mixed powder M1 be 60%, content of graphite 20%, Al2O3Powder content
It is 10% for 10%, Fe powder contents；M2 is poured into ball mill, addition abrading-ball, absolute ethyl alcohol, carries out the lower secondary ball of argon gas protection
Mill, Ball-milling Time are 14 hours, rotating speed 200r/min.
After the completion of S400, M2 ball milling, by uniformly mixed copper powder, graphene, graphite, Al2O3, Fe powder mixtures M2 carries out
Dry, crushing, and in Fast Filling to graphite jig；The graphite jig that will be filled with uniform mixed-powder M2, is put into cold press
In, under the pressure of 30MPa, it is pressed into the green compact of required size；The green compact of gained is put into togerther vacuum in company with graphite jig
It is sintered in hot pressing furnace；Sintering carries out under vacuum, and heating applies 50MPa pressure in insulating process to green compact, in stove
Vacuum degree maintains 9Pa hereinafter, sintering temperature is 850 DEG C, and soaking time is 5 minutes.
It is cooled down together with sintering furnace after S500, sintering, obtains ceramics-graphene enhancing Cu-base composites.
Embodiment 3
A kind of preparation method of ceramics-graphene enhancing Cu-base composites, includes the following steps：
S100, crystalline flake graphite are put into blender to be stirred with 300 turns/min, is removed as graphene.
S200, by copper powder, graphene according to volume ratio 99.9:It is packed into ball mill after 0.1 weighing, argon gas is filled in ball mill
Protection, be switched on ball milling, and Ball-milling Time is 2.5 hours.
S300, graphite, Al is added in the copper powder of gained, graphene mixed powder (M1) into S2002O3Powder, Fe powder, obtain
Mixture (M2), wherein in gained mixture the content of mixed powder M1 be 55%, content of graphite 20%, Al2O3Powder content
It is 20% for 5%, Fe powder contents；M2 is poured into ball mill, addition abrading-ball, absolute ethyl alcohol, carries out the lower secondary ball of argon gas protection
Mill, Ball-milling Time are 12 hours, rotating speed 200r/min.
After the completion of S400, M2 ball milling, by uniformly mixed copper powder, graphene, graphite, Al2O3, Fe powder mixtures M2 carries out
Dry, crushing, and in Fast Filling to graphite jig；The graphite jig that will be filled with uniform mixed-powder M2, is put into cold press
In, under the pressure of 25MPa, it is pressed into the green compact of required size；The green compact of gained is put into togerther vacuum in company with graphite jig
It is sintered in hot pressing furnace；Sintering carries out under vacuum, and heating applies 45MPa pressure in insulating process to green compact, in stove
Vacuum degree maintains 10Pa hereinafter, sintering temperature is 800 DEG C, and soaking time is 8 minutes.
It is cooled down together with sintering furnace after S500, sintering, obtains ceramics-graphene enhancing Cu-base composites.
Embodiment 4
A kind of preparation method of ceramics-graphene enhancing Cu-base composites, includes the following steps：
S100, crystalline flake graphite are put into blender to be stirred with 300 turns/min, is removed as graphene.
S200, by copper powder, graphene according to volume ratio 99.9:It is packed into ball mill after 0.1 weighing, argon gas is filled in ball mill
Protection, be switched on ball milling, and Ball-milling Time is 2 hours.
S300, graphite, Al is added in the copper powder of gained, graphene mixed powder (M1) into S2002O3Powder, Fe powder, obtain
Mixture (M2), wherein in gained mixture the content of mixed powder M1 be 55%, content of graphite 12%, Al2O3Powder content
It is 20% for 13%, Fe powder contents；M2 is poured into ball mill, addition abrading-ball, absolute ethyl alcohol, carries out the lower secondary ball of argon gas protection
Mill, Ball-milling Time are 13 hours, rotating speed 200r/min.
After the completion of S400, M2 ball milling, by uniformly mixed copper powder, graphene, graphite, Al2O3, Fe powder mixtures M2 carries out
Dry, crushing, and in Fast Filling to graphite jig；The graphite jig that will be filled with uniform mixed-powder M2, is put into cold press
In, under the pressure of 22MPa, it is pressed into the green compact of required size；The green compact of gained is put into togerther vacuum in company with graphite jig
It is sintered in hot pressing furnace；Sintering carries out under vacuum, and heating applies 40MPa pressure in insulating process to green compact, in stove
Vacuum degree maintains 12Pa hereinafter, sintering temperature is 780 DEG C, and soaking time is 9 minutes.
It is cooled down together with sintering furnace after S500, sintering, obtains ceramics-graphene enhancing Cu-base composites.
Embodiment 5
A kind of preparation method of ceramics-graphene enhancing Cu-base composites, includes the following steps：
S100, crystalline flake graphite are put into blender to be stirred with 300 turns/min, is removed as graphene.
S200, by copper powder, graphene according to volume ratio 99.9:It is packed into ball mill after 0.1 weighing, argon gas is filled in ball mill
Protection, be switched on ball milling, and Ball-milling Time is 3 hours, rotating speed 200r/min.
S300, graphite, Al is added in the copper powder of gained, graphene mixed powder (M1) into S2002O3Powder, Fe powder, obtain
Mixture (M2), wherein in gained mixture the content of mixed powder M1 be 65%, content of graphite 15%, Al2O3Powder content
It is 13% for 7%, Fe powder contents；M2 is poured into ball mill, addition abrading-ball, absolute ethyl alcohol, carries out the lower secondary ball of argon gas protection
Mill, Ball-milling Time are 11 hours.
After the completion of S400, M2 ball milling, by uniformly mixed copper powder, graphene, graphite, Al2O3, Fe powder mixtures M2 carries out
Dry, crushing, and in Fast Filling to graphite jig；The graphite jig that will be filled with uniform mixed-powder M2, is put into cold press
In, under the pressure of 28MPa, it is pressed into the green compact of required size；The green compact of gained is put into togerther vacuum in company with graphite jig
It is sintered in hot pressing furnace；Sintering carries out under vacuum, and heating applies 35MPa pressure in insulating process to green compact, in stove
Vacuum degree maintains 11Pa hereinafter, sintering temperature is 830 DEG C, and soaking time is 7 minutes.
It is cooled down together with sintering furnace after S500, sintering, obtains ceramics-graphene enhancing Cu-base composites.
Comparative example 1
A kind of preparation method of ceramic strengthening copper base composite, includes the following steps：
The first step is packed into ball mill after weighing copper powder, argon gas protection is filled in ball mill, and be switched on ball milling, Ball-milling Time
It is 2 hours.
Graphite, Al are added into the copper powder obtained by the first step for second step2O3Powder, Fe powder obtain mixture (M2), wherein
In gained mixture the content of copper powder be 65%, content of graphite 15%, Al2O3Powder content is 7%, Fe powder contents are 13%；It will
M2 is poured into ball mill, addition abrading-ball, absolute ethyl alcohol, carries out the lower secondary ball milling of argon gas protection, Ball-milling Time is 10 hours, rotating speed
200r/min。
After the completion of third step, M2 ball millings, by uniformly mixed copper powder, graphite, Al2O3, Fe powder mixtures M2 be dried,
It crushes, and in Fast Filling to graphite jig；The graphite jig that will be filled with uniform mixed-powder M2, is put into cold press,
Under the pressure of 20MPa, it is pressed into the green compact of required size；The green compact of gained is put into togerther vacuum hotpressing stove in company with graphite jig
In be sintered；Sintering carries out under vacuum, and heating applies 30MPa pressure in insulating process to green compact, vacuum degree in stove
13Pa is maintained hereinafter, sintering temperature is 750 DEG C, soaking time is 10 minutes.
It is cooled down together with sintering furnace after S500, sintering, obtains ceramic strengthening copper base composite.
Above example is intended to provide a kind of preparation method of ceramics-graphene enhancing Cu-base composites, wherein appointing
What copper, the variation of graphene composite powder ratio, mixed powder M1 changes of contents, content of graphite variation, Al2O3Powder powder content changes, Fe
Powder content changes the row for belonging to this preparation method.
The present invention is further measured the performance of the composite material in each embodiment.Wherein prepared ceramics-
Graphene enhances the micro-vickers hardness of Cu-base composites, friction coefficient under conditions of load 30N, wearing- in period 10min
It is listed in the table below with wear extent.
Fig. 1 show the optical microstructure of composite material after embodiment 2 is sintered, it can be seen that is distributed in Copper substrate
Even Fe phases, Al2O3Powder and graphite are uniformly distributed in Copper substrate.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain
Lid is within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (7)
1. a kind of preparation method of ceramics-graphene enhancing Cu-base composites, which is characterized in that include the following steps：
S100, crystalline flake graphite are put into blender and are stirred, and remove as graphene；
S200, copper powder, graphene are put into addition ball-milling medium progress mixing and ball milling in ball grinder；
S300, by graphite, Al2O3Powder, Fe powder, which are put into the good copper powder of ball milling, graphene mixture, continues ball milling；
S400, ball milling is got well after mixed powder be put into graphite jig, under the action of cold press, be pressed into required size
Green compact, green compact are sintered in company with graphite jig in vacuum hotpressing stove；
Release after S500, sintering, cools to room temperature with the furnace, and prepared material is that ceramics-graphene enhancing is copper-based multiple
Condensation material.
2. a kind of preparation method of ceramics according to claim 1-graphene enhancing Cu-base composites, feature exist
In：Mixing speed is 300 turns/min in the step S100, the volume basis score of copper powder, graphene in the step S200
It Wei not 99.9 vol % and 0.1vol%；Copper powder and graphene mixture, graphite, Al in the step S3002O3Powder, Fe powder
Mass percent is respectively 55 ~ 65wt %, 10 ~ 20 wt %, 5 ~ 15 wt % and 10 ~ 20 wt %.
3. a kind of preparation method of ceramics according to claim 2-graphene enhancing Cu-base composites, feature exist
In：The copper powder, Al2O3Powder, Fe powder purities are above 99.9%, and granularity is less than 100 microns；Crystalline flake graphite, graphite purity are high
In 99.9%, 75 microns of granularity.
4. a kind of preparation method of ceramics according to claim 1-graphene enhancing Cu-base composites, feature exist
In：Ball-milling Time is 2 ~ 3 hours in the step S200, and Ball-milling Time is 10 ~ 14 hours in step S300, and ball-milling medium is carbon
Change zirconium ball, ball grinder rotating speed 200r/min adds absolute ethyl alcohol in ball grinder in mechanical milling process and seals.
5. a kind of preparation method of ceramics according to claim 1-graphene enhancing Cu-base composites, feature exist
In：Sintering temperature is 750 ~ 850 DEG C when vacuum heating-press sintering in S400 in the step, and heating rate is 15 DEG C/min, in stove
Vacuum degree maintains 9 ~ 13Pa hereinafter, sintering keeps 5 ~ 10min of constant temperature.
6. a kind of preparation method of ceramics according to claim 1-graphene enhancing Cu-base composites, feature exist
In：S400 is 20 ~ 30MPa to the pressure that green compact applies in cold press in the step.
7. a kind of preparation method of ceramics according to claim 1-graphene enhancing Cu-base composites, feature exist
In：It is 30 ~ 50MPa to the pressure that green compact applies in sintering process.
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| CN109266914A (en) * | 2018-12-10 | 2019-01-25 | 南昌航空大学 | A kind of preparation method of the graphene reinforced metal-matrix composite based on crystalline flake graphite original position mechanical stripping |
| CN109694967A (en) * | 2019-01-14 | 2019-04-30 | 广西大学 | A kind of preparation method of copper/graphene composite material |
| CN109825738A (en) * | 2019-03-05 | 2019-05-31 | 山东理工大学 | Copper-based Cu/C/Ni/TiB2The preparation method of composite material |
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| CN111349810A (en) * | 2018-12-24 | 2020-06-30 | 有研工程技术研究院有限公司 | Graphene/copper composite wire and preparation method thereof |
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| CN109694967B (en) * | 2019-01-14 | 2020-12-25 | 广西大学 | Preparation method of copper/graphene composite material |
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| 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 |
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| CN112289487A (en) * | 2020-09-25 | 2021-01-29 | 无锡光美新能源科技有限公司 | Novel high-temperature-resistant flame-retardant high-conductivity electric vehicle wire harness and preparation method thereof |
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| CN112391549A (en) * | 2020-12-07 | 2021-02-23 | 西安稀有金属材料研究院有限公司 | Preparation method of reduced graphene oxide and aluminum oxide co-reinforced copper-based composite material |
| CN112872351A (en) * | 2021-01-13 | 2021-06-01 | 太原理工大学 | Preparation method of hybrid synergistic reinforced iron-based wear-resistant material |
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