CN108796306A - A kind of graphene oxide enhancing titanium matrix composite and preparation method thereof - Google Patents
A kind of graphene oxide enhancing titanium matrix composite and preparation method thereof Download PDFInfo
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- CN108796306A CN108796306A CN201810729020.0A CN201810729020A CN108796306A CN 108796306 A CN108796306 A CN 108796306A CN 201810729020 A CN201810729020 A CN 201810729020A CN 108796306 A CN108796306 A CN 108796306A
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 102
- 229910021389 graphene Inorganic materials 0.000 title claims abstract description 94
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 title claims abstract description 89
- 239000010936 titanium Substances 0.000 title claims abstract description 89
- 229910052719 titanium Inorganic materials 0.000 title claims abstract description 89
- 239000002131 composite material Substances 0.000 title claims abstract description 64
- 239000011159 matrix material Substances 0.000 title claims abstract description 45
- 238000002360 preparation method Methods 0.000 title claims abstract description 19
- 230000002708 enhancing effect Effects 0.000 title claims description 21
- 238000005245 sintering Methods 0.000 claims abstract description 52
- 238000000034 method Methods 0.000 claims abstract description 24
- 239000000243 solution Substances 0.000 claims abstract description 22
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims abstract description 18
- 238000009413 insulation Methods 0.000 claims abstract description 17
- 239000008187 granular material Substances 0.000 claims abstract description 15
- 229910052786 argon Inorganic materials 0.000 claims abstract description 9
- 239000007789 gas Substances 0.000 claims abstract description 9
- 238000001291 vacuum drying Methods 0.000 claims abstract description 9
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 7
- 238000010790 dilution Methods 0.000 claims abstract description 7
- 239000012895 dilution Substances 0.000 claims abstract description 7
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 6
- 239000010439 graphite Substances 0.000 claims abstract description 6
- 238000002156 mixing Methods 0.000 claims description 13
- 239000011259 mixed solution Substances 0.000 claims description 10
- 238000010438 heat treatment Methods 0.000 claims description 8
- 238000000643 oven drying Methods 0.000 claims description 8
- 230000008569 process Effects 0.000 claims description 8
- 238000003756 stirring Methods 0.000 claims description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 3
- -1 graphite alkene Chemical class 0.000 claims description 3
- 238000007731 hot pressing Methods 0.000 claims description 3
- 239000001301 oxygen Substances 0.000 claims description 3
- 229910052760 oxygen Inorganic materials 0.000 claims description 3
- 239000000843 powder Substances 0.000 claims description 2
- 238000002791 soaking Methods 0.000 claims description 2
- 230000002787 reinforcement Effects 0.000 abstract description 17
- 238000005054 agglomeration Methods 0.000 abstract description 4
- 230000002776 aggregation Effects 0.000 abstract description 4
- 238000001035 drying Methods 0.000 abstract 1
- 239000000463 material Substances 0.000 description 22
- 238000007906 compression Methods 0.000 description 7
- 230000006835 compression Effects 0.000 description 6
- 239000002041 carbon nanotube Substances 0.000 description 5
- 229910021393 carbon nanotube Inorganic materials 0.000 description 5
- 239000000835 fiber Substances 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- 239000003575 carbonaceous material Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 230000003647 oxidation Effects 0.000 description 4
- 238000007254 oxidation reaction Methods 0.000 description 4
- 238000013019 agitation Methods 0.000 description 3
- 239000006185 dispersion Substances 0.000 description 3
- 238000010583 slow cooling Methods 0.000 description 3
- 239000000654 additive Substances 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 238000002604 ultrasonography Methods 0.000 description 2
- 229910001069 Ti alloy Inorganic materials 0.000 description 1
- 238000005411 Van der Waals force Methods 0.000 description 1
- 229910007948 ZrB2 Inorganic materials 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000001816 cooling Methods 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
- 230000003631 expected effect Effects 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C14/00—Alloys based on titanium
-
- B22F1/0003—
-
- 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
-
- 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
-
- 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
- B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
- B22F2998/10—Processes characterised by the sequence of their steps
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Carbon And Carbon Compounds (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
Abstract
Enhance titanium matrix composite and preparation method thereof the present invention provides a kind of graphene oxide, composite material includes Titanium and graphene oxide, and the mass ratio of graphene oxide and titanium valve is 0.01 ~ 0.05:1.Preparation method is：Graphene oxide solution is prepared using improved Hummers methods, certain concentration is diluted to using absolute ethyl alcohol；Graphene oxide solution after titanium valve and dilution is prepared into the graphene oxide solution containing titanium valve under the action of ultrasonic disperse, drying in vacuum drying chamber, obtains the composite granule of titanium valve and graphene oxide by it；Composite granule is placed in the graphite jig of hot-pressed sintering furnace, heat-insulation pressure keeping sintering, which obtains graphene oxide, in argon gas protection environment enhances titanium matrix composite.The present invention can effectively improve the agglomeration traits of reinforcement in the base using graphene oxide as reinforcement, improve the degree of reinforcement in the base, to improve the mechanical property of matrix to the maximum extent.
Description
Technical field
The present invention relates to technical field of composite preparation, and in particular to a kind of graphene oxide enhancing titanium matrix composite
And preparation method thereof.
Background technology
It is a series of excellent that titanium matrix composite has low-density, high specific strength, high ratio modulus and excellent high-temperature behavior etc.
Point is widely used in the fields such as space flight and aviation, auto industry, medical instrument, it is considered to be the following structural material and function material
The only choosing of material.Generally select low-density, high-melting-point, high intensity reinforcement to improve titanium matrix composite performance to close
It is important.The reinforcement type in titanium matrix composite is mainly with TiB, TiC, Al at present2O3、B4C、TiN、ZrB2Deng ceramics
Based on the grain fibre reinforcements such as reinforcement and SiC.The volume fraction of reinforced phase is generally in 10-20%.However, ceramic particle increases
Strong body hardness itself and brittleness are bigger than normal, cannot not only improve the toughness of matrix, make its reduction instead.Due to the lower extension of material
Rate, but also the further plastic forming of titanium matrix composite becomes very difficult, processing cost also significantly improves.In addition, SiC
Although fiber can significantly improve the performances such as the modulus of titanium alloy substrate as reinforced phase, fiber reinforced titanium matrix composite by
To the limitation of following several respects factor：First, SiC fibers differ larger with titanium-based isolator CTE, it is easy preparing and taking
Relatively large thermal stress is generated during labour；Second is that there are serious anisotropic properties defects；Third, fiber is expensive,
It prepares, processing technology complexity, technology controlling and process relative difficult.
In recent years, novel carbonaceous material included that not only density is low for carbon nanotube and graphene, also have excellent mechanics and
Physical property causes extensive concern, it is considered to be a kind of ideal reinforcement material of titanium matrix composite.At present Boeing and
Graphene is enhanced titanium matrix composite as research direction by Air Passenger.However due to carbon nanotube and graphene draw ratio
Greatly, there are stronger Van der Waals force and between carbon nanotube or graphene, it is made easily to reunite to cause to change substrate performance
It is kind that expected effect is much not achieved.The additive amount of reinforcement is usually no more than 0.5 wt.%.To increase substantially matrix
It can, it is also necessary to improve additive amount, this forms contradiction with agglomeration traits again.Carrying for composite property is seriously constrained in this way
It rises, becomes the critical bottleneck problem of carbonaceous material enhancing metal-base composites technology development.
Graphene oxide is to prepare a kind of important derivative generated during graphene, be it is a kind of have excellent performance it is new
Type carbon material not only has the performances such as high intensity, high elastic modulus, contains a large amount of functional group in structure, be considered as hydrophilic
Property substance, in water have superior dispersibility.In this way, the superior graphene oxide of utility can be effective as reinforcement
Avoid its agglomeration traits in metallic matrix.Therefore, to solve the above-mentioned problems, the present invention is directed to be to increase with graphene oxide
Qiang Ti, titanium prepares composite material as matrix, and is detected to performance.
Invention content
Aiming at the above shortcomings existing in the prior art, the technical problems to be solved by the invention are provided with a kind of oxidation stone
Black alkene enhances titanium matrix composite, it substitutes graphene or carbon nanotube as the new of titanium matrix composite with graphene oxide
Type reinforcement with graphene or carbon nanotube is easily to reunite that material property is caused to improve in enhancing production procedure to overcome existing
Insufficient problem.The present invention also provides the preparation methods that a kind of graphene oxide enhances titanium matrix composite.
In order to solve the above technical problems, a kind of graphene oxide provided by the invention enhances titanium matrix composite, including gold
Belong to titanium, further include graphene oxide, the mass ratio of graphene oxide and titanium valve is 0.01 ~ 0.05:1
The present invention also provides the preparation methods that above-mentioned graphene oxide enhances titanium matrix composite, include the following steps：
Step 1 prepares graphene oxide solution using improved Hummers methods, is used in combination absolute ethyl alcohol to dilute, after being diluted
Graphene oxide solution；
Step 2, by graphene oxide contained in the solution after above-mentioned dilution and titanium valve in mass ratio 0.01 ~ 0.05:1 mixing,
So that two-phase is uniformly distributed using ultrasonic stirrer ultrasonic disperse, obtains the mixed solution of graphene oxide and titanium valve；
The mixed solution of graphene oxide and titanium valve is placed in water-bath after stirring to substantially dry by step 3, uses vacuum drying oven
Drying obtains the powder composite granule of graphene oxide and titanium valve mixing；
Composite granule is put into hot-pressed sintering furnace mold by step 4, and heat-insulation pressure keeping sintering is carried out under argon gas protection environment, is burnt
Room temperature is naturally cooled to after knot obtains graphene oxide enhancing titanium matrix composite.
In the preparation method of above-mentioned graphene oxide enhancing titanium matrix composite, preferably, in the step 2,
The purity of the titanium valve of use is more than 99.5%, and the grain diameter of titanium valve is less than 50 um, and the ultrasonic disperse time is 10 min or more.
In the preparation method of above-mentioned graphene oxide enhancing titanium matrix composite, preferably, in the step 3,
The time of ultrasonic agitation dispersion is 24 ~ 72 h, and bath temperature is 60 DEG C or more, the vacuum drying oven oven drying time 12 ~ for 24 hours.
In the preparation method of above-mentioned graphene oxide enhancing titanium matrix composite, preferably, in the step 4,
After hot-pressed sintering furnace mold equipped with composite granule is put into vacuum sintering funace, first in vacuum sintering funace into
Row vacuumize process so that the vacuum degree in vacuum sintering funace is 20Pa hereinafter, being re-filled with argon gas protection carries out heat preservation guarantor
Pressure sintering, heating rate be 15 DEG C/min hereinafter, in sintering process hot pressing furnace to graphite jig application pressure be 50 MPa or more,
Soaking time is 30 min or more, and sintering temperature is 800 ~ 1200 DEG C.
Compared with the prior art, the present invention has the advantages that：
1, the present invention replaces graphene, the oxygen in composite granule solution preparation process using the excellent graphene oxide of dispersion performance
Graphite alkene therefore can improve the quality of graphene oxide in the composite point with the evengranular mixing of titanium valve
Number, while the graphene oxide of evenly dispersed high quality score can effectively improve the mechanical property of titanium base material.
2, the present invention prepares graphene/titanium composite material using hot pressing sintering method and controls accurate, pressure with quick heating, temperature
The advantages that power control range is big.Using heating precompressed, the technique of heat-insulation pressure keeping, decrease temperature and pressure can effectively improve composite material
Bulk density.This technique can also effectively shorten sintering time, therefore can hinder crystal grain excessively growing up in sintering process,
Reduce crystallite dimension.The high-compactness and fine grain of material can effectively promote the mechanical property of material.
3, the graphene oxide enhancing titanium matrix composite of high quality score prepared by the present invention has intensity height, hardness
Height, the advantages that.Preparation process is simple, and operability is strong, and reinforcement graphene oxide is evenly distributed in the base, material property
Well, there is wide prospects for commercial application.
Description of the drawings
Fig. 1 is compression stress-compression ratio curve graph that present method invention material prepared is used in embodiment 1 ~ 4.
Specific implementation mode
Content in order to better understand the present invention retouches the preferred embodiment of the invention with reference to specific embodiment
It states, these description the advantages of being intended merely to further illustrate the present invention and technique, rather than to the limitation of invention claim.
Embodiment 1：
Pure titanium material is prepared using present method invention, steps are as follows：
1）Utilize improved Hummers methods（Specific method sees reference document Improved Synthesis of Graphene
Oxide.2010,4(8):4806-4814）Graphene oxide solution is prepared, is used in combination absolute ethyl alcohol to dilute, the oxygen after being diluted
Graphite alkene solution；
2）The mass ratio of graphene oxide solution and titanium valve after dilution is 0:1, by titanium valve in the vacuum drying oven oven drying time
12h is dried；
3）Obtained titanium valve body is put into hot-pressed sintering furnace mold, is then placed in vacuum sintering funace in argon gas protection ring
Heat-insulation pressure keeping sintering is carried out under border, sintering heating rate is 15 DEG C/min, and sintering maximum temperature is 800 DEG C, and heat-insulation pressure keeping was burnt
In journey pressure head be applied to the pressure on hot-pressed sintering furnace mold be 50 MPa, heat-insulation pressure keeping sintering time be 30 min, then with
Stove slow cooling obtains hot-forming pure titanium material.
The maximum compression yield strength and elongation percentage for measuring pure titanium material obtained by the present embodiment, from test（Using GB/T
7314-1987 testing standards）As a result it learns, the yield strength of the pure titanium material prepared by the present embodiment is 739 MPa, and compression is strong
Degree is 1456 MPa.
Pure titanium material manufactured in the present embodiment is for being done pair with the graphene oxide of present invention enhancing titanium matrix composite
Than.
Embodiment 2：
The first graphene oxide enhances titanium matrix composite, prepares according to the following steps：
1）Graphene oxide solution is prepared using improved Hummers methods, is used in combination absolute ethyl alcohol to dilute, the oxidation after being diluted
Graphene solution；
2）By contained graphene oxide in the solution after above-mentioned dilution and titanium valve in mass ratio 0.01:1 mixing, utilizes ultrasonic agitation
10 min of device ultrasonic disperse makes two-phase be uniformly distributed, and obtains the mixed solution of graphene oxide and titanium valve；
3）The mixed solution of graphene oxide and titanium valve is placed in water-bath and is stirred for 24 hours to substantially dry, in vacuum drying oven
Oven drying time 12h dries, and obtains the composite granule of graphene oxide and titanium valve mixing；
4）Obtained composite granule is put into hot-pressed sintering furnace mold, is then placed in vacuum sintering funace and is protected in argon gas
Heat-insulation pressure keeping sintering is carried out under environment, sintering heating rate is 15 DEG C/min, and sintering maximum temperature is 800 DEG C, and heat-insulation pressure keeping is burnt
In the process pressure head be applied to the pressure on hot-pressed sintering furnace mold be 50 MPa, heat-insulation pressure keeping sintering time be 30min, then with
Stove slow cooling obtains the titanium matrix composite of graphene oxide enhancing.
The maximum compression yield strength and elongation percentage of graphene oxide enhancing titanium matrix composite obtained by the present embodiment are measured,
It is learnt from test result, the yield strength of the graphene oxide enhancing titanium matrix composite prepared by the present embodiment is 1044
MPa, compressive strength are 1631 MPa.
Embodiment 3：
Second of graphene oxide enhances titanium matrix composite, prepares according to the following steps：
1）Graphene oxide solution is prepared using improved Hummers methods, is used in combination absolute ethyl alcohol to dilute, the oxidation after being diluted
Graphene solution；
2）By contained graphene oxide in the solution after above-mentioned dilution and titanium valve in mass ratio 0.025:1 mixing, is stirred using ultrasound
Mixing 10 min of device ultrasonic disperse makes two-phase be uniformly distributed, and obtains the mixed solution of graphene oxide and titanium valve；
3）The mixed solution of graphene oxide and titanium valve is placed at 48h in water-bath to stir to substantially dry, in vacuum drying oven
Oven drying time 12h dries, and obtains the composite granule of graphene oxide and titanium valve mixing；
4）Obtained composite granule is put into hot-pressed sintering furnace mold, is then placed in vacuum sintering funace and is protected in argon gas
Heat-insulation pressure keeping sintering is carried out under environment, sintering heating rate is 15 DEG C/min, and sintering maximum temperature is 800 DEG C, and heat-insulation pressure keeping is burnt
It is 50 MPa that pressure head, which is applied to the pressure on hot-pressed sintering furnace mold, in the process, and heat-insulation pressure keeping sintering time is 30 min, then
Furnace cooling obtains the titanium matrix composite of graphene oxide enhancing.
The maximum compression yield strength and elongation percentage of graphene oxide enhancing titanium matrix composite obtained by the present embodiment are measured,
It is learnt from test result, the yield strength of the graphene oxide enhancing titanium matrix composite prepared by the present embodiment is 1079
MPa, compressive strength are 1576 MPa.
Embodiment 4：
The third graphene oxide enhances titanium matrix composite, prepares according to the following steps：
1）Graphene oxide solution is prepared using improved Hummers methods, is used in combination absolute ethyl alcohol to dilute, the oxidation after being diluted
Graphene solution；
2）By contained graphene oxide in the solution after above-mentioned dilution and titanium valve in mass ratio 0.05:1 mixing, utilizes ultrasonic agitation
10 min of device ultrasonic disperse makes two-phase be uniformly distributed, and obtains the mixed solution of graphene oxide and titanium valve；
3）The mixed solution of graphene oxide and titanium valve is placed at 72h in water-bath to stir to substantially dry, in vacuum drying oven
Oven drying time 12h dries, and obtains the composite granule of graphene oxide and titanium valve mixing；
4）Obtained composite granule is put into hot-pressed sintering furnace mold, is then placed in vacuum sintering funace and is protected in argon gas
Heat-insulation pressure keeping sintering is carried out under environment, sintering heating rate is 15 DEG C/min, and sintering maximum temperature is 800 DEG C, and heat-insulation pressure keeping is burnt
In the process pressure head be applied to the pressure on hot-pressed sintering furnace mold be 50 MPa, heat-insulation pressure keeping sintering time be 30min, then with
Stove slow cooling obtains the titanium matrix composite of graphene oxide enhancing.
The maximum compression yield strength and elongation percentage of graphene oxide enhancing titanium matrix composite obtained by the present embodiment are measured,
It is learnt from test result, the yield strength of the graphene oxide enhancing titanium matrix composite prepared by the present embodiment is 1200
MPa, compressive strength are 1497 MPa.
Fig. 1 is the compressive stress strain curve figure of above-mentioned four kinds of materials, it is seen in fig. 1, that with graphene oxide content
Increase, the yield strength σ of titanium matrix compositesIt is continuously improved.When graphene oxide content is 5 wt.%, yield strength σs
Reach maximum value.Compared to the yield strength of pure titanium（σs=848MPa）, the addition of 5 wt.% GO can make the surrender of composite material
Intensity improves 45.0% or so.
In conclusion the graphene oxide of the present invention enhances titanium matrix composite, using graphene oxide as reinforcement
The agglomeration traits of reinforcement in the base can be effectively improved, it, can so as to improve the representative fraction of reinforcement in the base
To increase substantially the mechanical property of material.The method being combined using ultrasonic disperse and hot pressed sintering in preparation process, ultrasound
Dispersion can be such that graphene oxide is uniformly dispersed in titanium valve, and hot pressed sintering may be implemented the high of material at a lower temperature and cause
Density, a high proportion of reinforcement and high volume density can effectively improve using carbon materials as the mechanics of the titanium base material of reinforcement
Performance.Material preparation process is simple, and acquisition material mechanical performance is excellent, has higher prospects for commercial application.
Claims (5)
1. a kind of graphene oxide enhances titanium matrix composite, including Titanium, it is characterized in that：Further include graphene oxide, oxygen
The mass ratio of graphite alkene and titanium valve is 0.01 ~ 0.05:1.
2. a kind of graphene oxide described in claim 1 enhances titanium matrix composite preparation method, characterized in that including as follows
Step：
Step 1 prepares graphene oxide solution using improved Hummers methods, is used in combination absolute ethyl alcohol to dilute, after being diluted
Graphene oxide solution；
Step 2, by graphene oxide contained in the solution after above-mentioned dilution and titanium valve in mass ratio 0.01 ~ 0.05:1 mixing,
So that two-phase is uniformly distributed using ultrasonic stirrer ultrasonic disperse, obtains the mixed solution of graphene oxide and titanium valve；
The mixed solution of graphene oxide and titanium valve is placed in water-bath after stirring to substantially dry by step 3, uses vacuum drying oven
Drying obtains the powder composite granule of graphene oxide and titanium valve mixing；
Composite granule is put into hot-pressed sintering furnace mold by step 4, and heat-insulation pressure keeping sintering is carried out under argon gas protection environment, is burnt
Room temperature is naturally cooled to after knot obtains graphene oxide enhancing titanium matrix composite.
3. preparation method according to claim 2, it is characterized in that：In the step 2, the purity of the titanium valve used for
99.5%, the grain diameter of titanium valve is less than 50um, and the ultrasonic disperse time is 10 min or more.
4. preparation method according to claim 3, it is characterized in that：In the step 3, water-bath pot temperature is 60 DEG C or more,
Mixing time is 24 ~ 72 h, vacuum drying oven oven drying time 12 ~ for 24 hours.
5. preparation method according to claim 4, it is characterized in that：Hot-pressed sintering furnace mold equipped with composite granule is put into
After in vacuum sintering funace, first to carrying out vacuumize process in vacuum sintering funace so that in vacuum sintering funace
Vacuum degree be 20 Pa hereinafter, be re-filled with argon gas protection carry out heat-insulation pressure keeping sintering, heating rate be 15 DEG C/min hereinafter, burn
It is 50 MPa or more that hot pressing furnace applies pressure to graphite jig during knot, and soaking time is 30 min or more, and sintering temperature is
800~1200℃。
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| CN201810729020.0A CN108796306A (en) | 2018-07-05 | 2018-07-05 | A kind of graphene oxide enhancing titanium matrix composite and preparation method thereof |
| CN201910114916.2A CN109609806B (en) | 2018-07-05 | 2019-02-14 | Graphene oxide reinforced titanium-based composite material and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109666821A (en) * | 2019-02-14 | 2019-04-23 | 重庆大学 | A kind of titanium composite material and preparation method thereof |
| CN114164355A (en) * | 2021-12-13 | 2022-03-11 | 贵州大学 | Graphene reinforced metal composite material and preparation method and application thereof |
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| CN110918978B (en) * | 2019-12-16 | 2022-04-19 | 哈尔滨工程大学 | Reinforcing phase reinforced composite powder with functional layer for use in fusing technology, and preparation method and application thereof |
| CN113172219B (en) * | 2021-03-29 | 2023-03-28 | 西安交通大学 | Preparation method and application of graphene-reinforced AlSi10Mg nanocomposite |
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| WO2010102655A2 (en) * | 2009-02-16 | 2010-09-16 | Bayer International Sa | A compound material comprising a metal and nano particles and a method for producing the same |
| CN104451227B (en) * | 2014-12-10 | 2016-02-03 | 济南大学 | Copper-plated graphite alkene strengthens the preparation method of metal-base composites |
| CN104805323B (en) * | 2015-03-23 | 2017-08-29 | 武汉理工大学 | A kind of graphene/titanium composite material and preparation method thereof |
| CN105063404A (en) * | 2015-06-25 | 2015-11-18 | 中国航空工业集团公司北京航空材料研究院 | Preparation method of titanium matrix graphene alloy |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109666821A (en) * | 2019-02-14 | 2019-04-23 | 重庆大学 | A kind of titanium composite material and preparation method thereof |
| CN109666821B (en) * | 2019-02-14 | 2021-09-24 | 重庆大学 | Titanium-based composite material and preparation method thereof |
| CN114164355A (en) * | 2021-12-13 | 2022-03-11 | 贵州大学 | Graphene reinforced metal composite material and preparation method and application thereof |
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| CN109609806B (en) | 2021-09-24 |
| CN109609806A (en) | 2019-04-12 |
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Application publication date: 20181113 |