CN107058903A - A kind of graphene/stainless steel composite armour material - Google Patents
A kind of graphene/stainless steel composite armour material Download PDFInfo
- Publication number
- CN107058903A CN107058903A CN201610977839.XA CN201610977839A CN107058903A CN 107058903 A CN107058903 A CN 107058903A CN 201610977839 A CN201610977839 A CN 201610977839A CN 107058903 A CN107058903 A CN 107058903A
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- stainless steel
- graphene
- powder
- armour material
- composite armour
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 141
- 229910021389 graphene Inorganic materials 0.000 title claims abstract description 140
- 239000010935 stainless steel Substances 0.000 title claims abstract description 116
- 229910001220 stainless steel Inorganic materials 0.000 title claims abstract description 116
- 239000000463 material Substances 0.000 title claims abstract description 43
- 239000011154 composite armour Substances 0.000 title claims abstract description 33
- 239000000843 powder Substances 0.000 claims abstract description 58
- 238000000034 method Methods 0.000 claims abstract description 18
- 239000012535 impurity Substances 0.000 claims abstract description 11
- 238000005119 centrifugation Methods 0.000 claims description 15
- 239000006185 dispersion Substances 0.000 claims description 11
- 239000003960 organic solvent Substances 0.000 claims description 10
- 239000007921 spray Substances 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 9
- 239000002245 particle Substances 0.000 claims description 8
- 238000002360 preparation method Methods 0.000 claims description 8
- -1 graphite alkene Chemical class 0.000 claims description 5
- 229910002804 graphite Inorganic materials 0.000 claims description 4
- 239000010439 graphite Substances 0.000 claims description 4
- 235000019441 ethanol Nutrition 0.000 claims description 3
- 240000007594 Oryza sativa Species 0.000 claims description 2
- 235000007164 Oryza sativa Nutrition 0.000 claims description 2
- 239000002202 Polyethylene glycol Substances 0.000 claims description 2
- 229920001223 polyethylene glycol Polymers 0.000 claims description 2
- 235000009566 rice Nutrition 0.000 claims description 2
- 150000001875 compounds Chemical class 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 238000005253 cladding Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 239000002131 composite material Substances 0.000 description 15
- 230000001476 alcoholic effect Effects 0.000 description 10
- 239000003595 mist Substances 0.000 description 6
- 239000011812 mixed powder Substances 0.000 description 6
- 239000010936 titanium Substances 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 238000005266 casting Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- 229910001069 Ti alloy Inorganic materials 0.000 description 2
- 150000001336 alkenes Chemical class 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 238000000498 ball milling Methods 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000002086 nanomaterial Substances 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 229920002239 polyacrylonitrile Polymers 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 1
- 239000004425 Makrolon Substances 0.000 description 1
- 241000549556 Nanos Species 0.000 description 1
- 235000021355 Stearic acid Nutrition 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 150000001721 carbon Chemical group 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 238000010406 interfacial reaction Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000002905 metal composite material Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 229920000151 polyglycol Polymers 0.000 description 1
- 239000010695 polyglycol Substances 0.000 description 1
- 238000004663 powder metallurgy Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000008117 stearic acid Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
-
- 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
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/02—Making ferrous alloys by powder metallurgy
- C22C33/0257—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements
- C22C33/0278—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements with at least one alloying element having a minimum content above 5%
- C22C33/0285—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements with at least one alloying element having a minimum content above 5% with Cr, Co, or Ni having a minimum content higher than 5%
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/58—Ferrous alloys, e.g. steel alloys containing chromium with nickel with more than 1.5% by weight of manganese
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Carbon And Carbon Compounds (AREA)
- Powder Metallurgy (AREA)
Abstract
The invention provides a kind of graphene/stainless steel composite armour material, the stainless steel composite armour material includes component by mass percentage：C≤0.03%；Si≤1.0%；Mn≤2.0%；P≤0.045%；S≤0.03%；Ni:10.0~14.0%；Cr:16.0~18.0%；Mo:2.0~3.0%；Surplus is Fe and inevitable impurity.Methods described it include：Prepare graphene organic solution of the number of plies less than 10, graphene coated powder of stainless steel and graphene/powder of stainless steel after cladding is mixed into 20~100min in mixer, produce graphene/stainless steel composite armour material.The method that the present invention is provided makes graphene spread more evenly across in metal-powder, and graphene nanometer sheet is uniformly coated on powder of stainless steel surface, forms high quality interface combination；Technique is simple, production efficiency is high, beneficial to extensive industrialization.
Description
Technical field
The present invention relates to a kind of composite, and in particular to a kind of graphene/stainless steel composite armour material.
Background technology
Graphene is a kind of two-dimension nano materials being made up of carbon atom, and in individual layer laminated structure, (thickness is only several receive
Rice).Due to its unique bi-dimensional cellular crystal structure and high bond strength, be current specific strength highest known in the world,
Most hard nano material, its fracture strength is up to 130Gpa.
The process of graphene and metal composite mainly has two kinds at present：Melt casting and powder metallurgic method.Using
When melt casting prepares graphene stainless steel composite material, because graphene and both metals density variation are big, graphene is very
It is difficult scattered in molten stainless steel inner homogeneous, in addition, the two reacts in material preparation process it is also possible to occurring high-temperature interface, dislike
Change material property.Therefore graphene stainless steel composite material is less is prepared using melt casting.Using powder metallurgy legal system
During standby graphene stainless steel composite material, graphene and the mixed uniformly powder of stainless steel need to be first obtained, then by follow-up
Pressure processing prepares graphene stainless steel composite block material, the height for inhibiting conventional melt casting to bring to greatest extent
Warm interfacial reaction.Therefore, graphene stainless steel composite material is typically prepared using powder metallurgic method.
At present, LAV uses steel bulletproof armour always, and gunship uses titanium alloy bulletproof armour.But
It is that future war all proposes higher and higher want to the long-range delivery ability of ground force, the payload capability of gunship
Ask, this just proposes rigors to equipment weight so that the steel armor and titanium alloy armor used in the past can not be met
The need for following Weapon Development.Therefore need to provide that a kind of density is low, cost is low, the composite armour material easily produced in batches
Material.
For stainless base steel composite material, whether distribution of the enhancing in stainless steel base be uniform, enhancing is mutually
No generation is reunited, whether interface cohesion is close, directly decides the quality of composite property.It is small to there is size in graphene, than
Surface area is big, it is difficult to scattered, it is easy to the problem of reuniting, therefore, and how real graphene is dispersed in stainless steel base
It is existing, it is to prepare the key technology that graphene stainless steel composite material needs to break through.Graphite is prepared in particular by powder metallurgic method
During alkene stainless steel composite material, graphene mixed powder dispersed in stainless steel powder how is obtained, is to prepare Gao Pin
The premise of matter graphene stainless steel composite material and basis.In addition the existing mixing apparatus for being used to prepare such a composite is resistance to
Poor, the bulky, service life of mill property is short.
The content of the invention
To overcome the drawbacks described above that prior art is present, the invention provides a kind of graphene/stainless steel composite armour material
Material, this method is improved to graphene with powder of stainless steel mixed method, is a kind of new technique and method, and this method can be by
Graphene nanometer sheet is uniformly coated on the surface of metal-powder, realizes that graphene is mixed with the uniform of metal-powder.
The purpose of the present invention is realized using following technical proposals：
A kind of graphene and stainless steel composite armour material, it is characterised in that the stainless steel composite armour material includes
Following components by mass percentage：C≤0.03%；Si≤1.0%；Mn≤2.0%；P≤0.045%；S≤0.03%；Ni:
10.0~14.0%；Cr:16.0~18.0%；Mo:2.0~3.0%；Surplus is Fe and inevitable impurity.
Further, the stainless steel includes following components by mass percentage：C≤0.12%；Si≤1.0%；Mn
≤ 2.0%；S≤0.03%；P≤0.035%；Cr：18.0~19.0%；Ni：8.0~11.0%；Ti：0.1~0.8%；It is remaining
Measure Fe and inevitable impurity.
Further, the stainless steel includes following components by mass percentage：Cr：18.0%.
Further, the stainless steel includes following components by mass percentage：Ni：10.0%.
Further, the stainless steel includes following components by mass percentage：Ti：0.6%.
A kind of graphene/stainless steel composite armour material, it is characterised in that the preparation method of the material includes following step
Suddenly：
1) the nanometer sheet organic solution that the graphene number of plies is less than 10 is prepared：In 7000~9000rpm rotating speeds, linear velocity 85~
In centrifugation nano-dispersed machine under 115m/s, organic solution graphene dispersion body is handled；
2) graphene coated powder of stainless steel：It is 60~280 μm of spray equipment by step 1 with gondola water faucet mesh size)
On the powder of stainless steel that organic solution graphene dispersion spray body rotates in mixer；
3) 20~100min is mixed to the powder of stainless steel of coated graphite alkene in mixer, produces graphene and stainless steel
Composite armour material.
Further, by mass percentage, the powder of stainless steel of graphene coated prepared by methods described contains：Graphene
0.05%~9%, powder of stainless steel 91%~99.95%；The particle diameter of the powder of stainless steel is 10~100 μm；The gondola water faucet
Mesh size is 100 μm~200 μm.
Further, the rotating speed of the centrifugation nano-dispersed machine is 8000rpm, and linear velocity is 100m/s；The mixer
Rotating speed be 1000rpm.
Further, the organic solvent in the nanometer sheet organic solution is in ethanol, NPM, polyethylene glycol and/or PVP
One or more, the concentration of the organic solvent is 20%~100%.
Further, the organic solvent in the nanometer sheet organic solution is absolute ethyl alcohol.
With immediate prior art ratio, the technical scheme that the present invention is provided has the advantages that：
1st, a kind of graphene/stainless steel composite armour material that the present invention is provided, realizes graphene in stainless steel powder
The uniform cladding on surface, is conducive to graphene metallic composite to form high-quality graphene metal interface combination.
2nd, the present invention is provided a kind of graphene and the preparation method of stainless steel composite armour material, graphene are not easy hair
It is raw to reunite, no secondary agglomeration and scattered phenomenon is solidified again.
3rd, the preparation method of a kind of graphene for providing of the present invention and stainless steel composite armour material, without solidification, need not
Roll, it is to avoid formed hardened or reunited.
4th, the present invention is provided a kind of graphene and the preparation method of stainless steel composite armour material, without vibrating and sieving
Point, so as to avoid the defect of the skewness of the graphene thus brought and powder of stainless steel.
5th, a kind of graphene/stainless steel composite armour material that the present invention is provided, technological operation is simple, manufacturing cost is low
Honest and clean, production efficiency is high.
6th, a kind of graphene/stainless steel composite armour material that the present invention is provided, without heating without drying, makes graphite
Alkene preferably in stainless steel powder body Surface coating, i.e. Environmental Safety, shortens manufacturing cycle again.
7. nano-dispersed machine prepared by the material that the present invention is selected substantially prolongs service life, alleviate volume.
Brief description of the drawings
Fig. 1 centrifuges for a kind of preparation method of graphene and stainless steel composite armour material provided in an embodiment of the present invention
Nano-dispersed machine structural representation；
Fig. 2 is the stereoscan photograph (SEM) of graphene made from the embodiment of the present invention and stainless steel composite armour material；
Fig. 3 is the stereoscan photograph (SEM) of graphene made from comparative example of the present invention and stainless steel composite armour material.
Embodiment
With reference to specific embodiment, the present invention will be described in detail.
The centrifugation nano-dispersed machine include being located at the lower section of drive device 4 and by the centrifugation rotation dish 1 of its drive, with it is described
The fixed disk 2 provided with centre bore that centrifugation rotation dish 1 is oppositely arranged, is arranged at the recirculation unit 3 and machine of the lower section of fixed disk 2
Shell 5, wherein, the charging aperture of the recirculation unit 3 is connected with the centre bore, discharging opening is located at the side of fixed disk 2；Centrifugation
Distance between rotation dish 1 and fixed disk 2 is 0.2mm；Recirculation unit 3 is used to circulating and stirring organic solution.Centrifugation is rotated
Disk is with made from following following components by mass percentage：C：0.12~0.20；Si：≤0.30；Mn：0.30~
0.70；S：≤0.045；P：≤0.045；Cr：Allow residual content≤0.30；Ni：Allow residual content≤0.30；Cu：Allow
Residual content≤0.30.The recirculation unit is the centrifugal stirrer stirred outside groove, the centrifugal stirrer
Agitating paddle is with made from following following components by mass percentage：C≤0.08；Mn≤2.00；P≤0.045；S≤
0.030；Si≤1.00；Cr：18.0~20.0；Ni:8.0~11.0.
Casing is with made from following following components by mass percentage：70 parts of makrolon and 30 parts of polyacrylonitrile
What the thermoplastic plastic rubber of alloy was made.The polyacrylonitrile alloy is with following following components by mass percentage
It is obtained：Acrylonitrile 15%~35%, butadiene 5%~30%, styrene 40%~60%.
Embodiment 1：
The present embodiment provides the preparation method of a kind of graphene and stainless steel composite armour material, comprises the following steps that：
Graphene coated powder of stainless steel includes the component of following mass parts meter：Graphene 0.05%, stainless steel
99.95%.Graphene can be prepared by Hummer ' s methods.Stainless steel is following components by mass percentage：C：0.03%；
Si：0.5%；Mn：2.0%；P：0.04%；Ni:12.0%；Cr:16.0%；Mo:3.0%；Surplus is Fe and inevitable
Impurity；The particle diameter of powder of stainless steel is 10 μm.
1) by graphene after ultrasonic disperse during concentration is 95% alcoholic solution, rotating speed is placed in for 9000rpm, linear velocity
In 115m/s centrifugation nano-dispersed machine, to obtain the graphene alcoholic solution after Centrifugal dispersion, the graphene alcoholic solution
The middle graphene nanometer sheet number of plies below 10 layers account for whole graphene nanometer sheets more than 90%；
2) the spray equipment mist that the graphene nanometer sheet organic solution is passed through into 60 μm of gondola water faucet mesh size under stress
It is melted on the powder of stainless steel rotated in droplet, the high efficient mixer for being equably sprayed at 1200rpm；Wherein, with condensing back
Receiving apparatus reclaims solvent flashing, and recycling and reuse can also be realized by other means.
3) after the completion of the sprinkling of graphene alcoholic solution body, high efficient mixer continues to run with 100min；
4) well mixed graphene coated powder of stainless steel is taken out from high efficient mixer.
Embodiment 2：
Graphene coated powder of stainless steel includes the component of following parts by weight meter：Graphene 9%, stainless steel 91%.It is stainless
Steel is following components by mass percentage：C：0.02%；Mn：1.0%；S：0.02%；Ni:14.0%；Cr:17.0%；Mo:
2.0%；Surplus is Fe and inevitable impurity.The particle diameter of powder of stainless steel is 100 μm.
1) by graphene after ultrasonic disperse during concentration is 95% alcoholic solution, rotating speed is subsequently placed in for 8000rpm, line
Speed for 100m/s centrifugation nano-dispersed machine in, obtain the graphene alcoholic solution after Centrifugal dispersion, the graphene alcohol
In solution the graphene nanometer sheet number of plies below 10 layers account for whole graphene nanometer sheets more than 90%；
2) the graphene nanometer sheet organic solution is passed under pressure through to the spray equipment mist of 100 μm of gondola water faucet mesh size
Droplet is melted into, is equably spilt to the powder of stainless steel rotated in 1000rpm high efficient mixer；
3) high efficient mixer continues to run with 40min after the completion of the sprinkling of graphene alcoholic solution；
4) powder of well mixed graphene coated stainless steel is taken out from the high efficient mixer.
Embodiment 3
Graphene coated powder of stainless steel includes the component of following parts by weight meter：Graphene 5%, stainless steel 95%.It is stainless
Steel is following components by mass percentage：Si：1.0%；P：0.045%；S：0.03%；Ni:10.0%；Cr:18.0%；
Mo:2.5%；Surplus is Fe and inevitable impurity.The particle diameter of powder of stainless steel is 60 μm.
1) by graphene in organic solvent (concentration be 40% alcoholic solution) after ultrasonic disperse, being subsequently placed in rotating speed is
7000rpm, linear velocity for 85m/s centrifugation nano-dispersed machine in, obtain the graphene nanometer sheet organic solution after Centrifugal dispersion,
The graphene nanometer sheet number of plies accounts for whole graphene nanometer sheets below 10 layers in the graphene nanometer sheet organic solution
More than 90%；
2) the graphene nanometer sheet organic solution is passed under pressure through to the spray equipment mist of 180 μm of gondola water faucet mesh size
It is melted on the powder of stainless steel rotated in droplet, the high efficient mixer for being equably sprinkled upon 1100rpm；
3) high efficient mixer continues to run with 100min after the completion of the graphene nanometer sheet organic solution is all sprayed；
4) powder of well mixed graphene coated stainless steel is taken out from the high efficient mixer.
Embodiment 4
Graphene coated powder of stainless steel includes the component of following parts by weight meter：Graphene 0.05%, stainless steel
99.95%.Stainless steel is following components by mass percentage：C：0.04%；Mn：2.0%；P：0.03%；Cr：19.0%；
Ni：9.0%；Ti：0.1%；Surplus Fe and inevitable impurity.The particle diameter of powder of stainless steel is 10 μm.
1) graphene after ultrasonic disperse, is subsequently placed in organic solvent (concentration is 100% polyglycol solution)
Rotating speed is 8000rpm, and linear velocity is in 100m/s centrifugation nano-dispersed machine, obtaining the graphene nanometer sheet after Centrifugal dispersion has
The graphene nanometer sheet number of plies accounts for whole graphene nanos below 10 layers in machine solution, the graphene nanometer sheet organic solution
More than the 90% of piece；
2) the graphene nanometer sheet organic solution is passed under pressure through to the spray equipment mist of 280 μm of gondola water faucet mesh size
Droplet is melted into, is equably spilt to the powder of stainless steel rotated in 1000rpm high efficient mixer；
3) high efficient mixer continues to run with 20min after the completion of the graphene nanometer sheet organic solution is all sprayed；
4) powder of well mixed graphene coated stainless steel is taken out from the high efficient mixer.
Embodiment 5
Graphene coated powder of stainless steel includes the component of following parts by weight meter：Graphene 9%, stainless steel 91%.It is stainless
Steel is following components by mass percentage：C：0.12%；Si：0.4%；S：0.03%；P：0.035%；Cr：17.0%；Ni：
8.0%；Ti：0.4%；Surplus Fe and inevitable impurity.The particle diameter of powder of stainless steel is 100 μm.
1) by graphene in organic solvent (concentration be 40% alcoholic solution) after ultrasonic disperse, being subsequently placed in rotating speed is
7000rpm, linear velocity for 85m/s centrifugation nano-dispersed machine in, obtain the graphene nanometer sheet organic solution after Centrifugal dispersion,
The graphene nanometer sheet number of plies accounts for whole graphene nanometer sheets below 10 layers in the graphene nanometer sheet organic solution
More than 90%；
2) the graphene nanometer sheet organic solution is passed under pressure through to the spray equipment mist of 170 μm of gondola water faucet mesh size
Droplet is melted into, is equably spilt to the powder of stainless steel rotated in 800rpm high efficient mixer；
3) after the completion of the graphene nanometer sheet organic solution is all sprayed, the high efficient mixer is kept to continue to run with
30min；
4) powder of well mixed graphene coated stainless steel is taken out from the high efficient mixer.
Embodiment 6
Graphene coated powder of stainless steel includes the component of following parts by weight meter：Graphene 5%, stainless steel 95%.It is stainless
Steel is following components by mass percentage：Si：1.0%；Mn：1.0%；S：0.02%；Cr：18.0%；Ni：11.0%；Ti：
0.8%；Surplus Fe and inevitable impurity.The particle diameter of powder of stainless steel is 60 μm.
1) by graphene in organic solvent (concentration be 40% alcoholic solution) after ultrasonic disperse, being subsequently placed in rotating speed is
7000rpm, linear velocity for 85m/s centrifugation nano-dispersed machine in, obtain the graphene nanometer sheet organic solution after Centrifugal dispersion,
The graphene nanometer sheet number of plies accounts for whole graphene nanometer sheets below 10 layers in the graphene nanometer sheet organic solution
More than 90%；
2) the graphene nanometer sheet organic solution is passed under pressure through to the spray equipment mist of 200 μm of gondola water faucet mesh size
Droplet is melted into, is equably spilt to the powder of stainless steel rotated in 800rpm high efficient mixer；
3) after the completion of the graphene nanometer sheet organic solution is all sprayed, the high efficient mixer is kept to continue to run with
100min；
4) powder of well mixed graphene coated stainless steel is taken out from the high efficient mixer.
Comparative example 1
1) stainless steel that granularity is 40 μm is atomized powder and graphene (addition is graphene/stainless steel composite material
0.1~5.0wt.% of amount), 24~48h is mixed in 10~30r/min of rotating speed mixed powder machine；
2) by mixed powder made from step (1) be put into 100~200r/min of rotating speed mixer mixing 10~
30min；
3) made mixed powder, abrading-ball and stearic acid are placed in stirring ball mill, are filled with liquid nitrogen, treat that liquid nitrogen submergence is complete
Start ball milling during portion's abrading-ball, ratio of grinding media to material is 40:1；
4) low temperature ball milling takes out powder and is placed in inert gas shielding case, treat that its temperature is recovered to room after 2~4 hours
Taken out after temperature.
As can be seen that the uncoated stainless steel of graphene in the obtained mixed powder of method that comparative example is provided from Fig. 2~3
Powder, and the mixed powder that method provided in an embodiment of the present invention is obtained, graphene completely be uniformly wrapped on powder of stainless steel
Surface, good interface cohesion body is formed with matrix.
Method provided in an embodiment of the present invention, realizes cladding of the graphene in stainless steel powder surface, is conducive in stone
High-quality graphene metal interface is formed in black alkene metallic composite to combine；Graphene is less likely to occur to reunite, without secondary
Reunite and solidify scattered phenomenon again；Without solidification, it need not roll, it is to avoid formed hardened or reunited；Without vibration and screening,
So as to avoid the skewness of the graphene thus brought and powder of stainless steel；Technological operation is simple, manufacturing cost is cheap, raw
Produce efficiency high；Without heating without drying, make graphene more preferable in stainless steel powder body Surface coating, i.e. Environmental Safety, again
Shorten manufacturing cycle.
Finally it should be noted that：The above embodiments are merely illustrative of the technical scheme of the present invention and are not intended to be limiting thereof, to the greatest extent
The present invention is described in detail with reference to above-described embodiment for pipe, those of ordinary skills in the art should understand that：Still
The embodiment of the present invention can be modified or equivalent substitution, and without departing from any of spirit and scope of the invention
Modification or equivalent substitution, it all should cover among scope of the presently claimed invention.
Claims (10)
1. a kind of graphene/stainless steel composite armour material, it is characterised in that the stainless steel composite armour material includes pressing matter
Measure following components of percentage：C≤0.03%；Si≤1.0%；Mn≤2.0%；P≤0.045%；S≤0.03%；Ni:10.0
~14.0%；Cr:16.0~18.0%；Mo:2.0~3.0%；Surplus is Fe and inevitable impurity.
2. a kind of graphene according to claim 1/stainless steel composite armour material, it is characterised in that the stainless steel
Including following components by mass percentage：C≤0.12%；Si≤1.0%；Mn≤2.0%；S≤0.03%；P≤
0.035%；Cr：18.0~19.0%；Ni：8.0~11.0%；Ti：0.1~0.8%；Surplus Fe and inevitable impurity.
3. a kind of graphene according to claim 1/stainless steel composite armour material, it is characterised in that the stainless steel
Including following components by mass percentage：Cr：18.0%.
4. a kind of graphene according to claim 1/stainless steel composite armour material, it is characterised in that the stainless steel
Including following components by mass percentage：Ni：10.0%.
5. a kind of graphene according to claim 1/stainless steel composite armour material, it is characterised in that the stainless steel
Including following components by mass percentage：Ti：0.6%.
6. a kind of graphene/stainless steel composite armour material, it is characterised in that the preparation method of the material comprises the following steps：
1) the nanometer sheet organic solution that the graphene number of plies is less than 10 is prepared：In 7000~9000rpm rotating speeds, linear velocity 85~
In centrifugation nano-dispersed machine under 115m/s, organic solution graphene dispersion body is handled；
2) graphene coated powder of stainless steel：Be 60~280 μm of spray equipment by step 1 with gondola water faucet mesh size) it is organic
On the powder of stainless steel that solution graphene dispersion spray body rotates in mixer；
3) 20~100min is mixed to the powder of stainless steel of coated graphite alkene in mixer, produces graphene and stainless steel is compound
Armour material.
7. a kind of graphene according to claim 6/stainless steel composite armour material, it is characterised in that by quality percentage
Number meter, the powder of stainless steel of graphene coated prepared by methods described contains：Graphene 0.05%~9%, powder of stainless steel 91%
~99.95%；The particle diameter of the powder of stainless steel is 10~100 μm；The gondola water faucet mesh size is 100 μm~200 μm.
8. a kind of graphene according to claim 6/stainless steel composite armour material, it is characterised in that the centrifugation is received
The rotating speed of rice dispersion machine is 8000rpm, and linear velocity is 100m/s；The rotating speed of the mixer is 1000rpm.
9. a kind of graphene according to claim 6/stainless steel composite armour material, it is characterised in that the nanometer sheet
Organic solvent in organic solution is the one or more in ethanol, NPM, polyethylene glycol and/or PVP, the organic solvent
Concentration is 20%~100%.
10. a kind of graphene according to claim 6/stainless steel composite armour material, it is characterised in that the nanometer sheet
Organic solvent in organic solution is absolute ethyl alcohol.
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| WO2021054887A1 (en) * | 2019-09-17 | 2021-03-25 | Graphmatech Ab | Composite powder with iron based particles coated with graphene material |
| CN116352101A (en) * | 2021-12-28 | 2023-06-30 | 中国航天科工飞航技术研究院（中国航天海鹰机电技术研究院） | Preparation method of graphene/austenitic stainless steel composite material and magnetic levitation train |
| GB2629442A (en) * | 2023-04-28 | 2024-10-30 | Siemens Energy Global Gmbh & Co Kg | Composite metallic powder material and high density manufactured components |
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