CN111020664A - Preparation method of graphene-containing micro-arc oxidation corrosion-resistant ceramic layer - Google Patents
Preparation method of graphene-containing micro-arc oxidation corrosion-resistant ceramic layer Download PDFInfo
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- 238000007745 plasma electrolytic oxidation reaction Methods 0.000 title claims abstract description 70
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 48
- 239000000919 ceramic Substances 0.000 title claims abstract description 43
- 229910021389 graphene Inorganic materials 0.000 title claims abstract description 37
- 238000005260 corrosion Methods 0.000 title claims abstract description 34
- 230000007797 corrosion Effects 0.000 title claims abstract description 34
- 238000002360 preparation method Methods 0.000 title claims abstract description 13
- 238000001652 electrophoretic deposition Methods 0.000 claims abstract description 21
- 239000003792 electrolyte Substances 0.000 claims description 31
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 28
- 239000008367 deionised water Substances 0.000 claims description 24
- 229910021641 deionized water Inorganic materials 0.000 claims description 24
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 18
- 239000000758 substrate Substances 0.000 claims description 17
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical group CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims description 16
- YIXJRHPUWRPCBB-UHFFFAOYSA-N magnesium nitrate Chemical compound [Mg+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O YIXJRHPUWRPCBB-UHFFFAOYSA-N 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 14
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 11
- 238000004140 cleaning Methods 0.000 claims description 11
- 229910052751 metal Inorganic materials 0.000 claims description 11
- 239000002184 metal Substances 0.000 claims description 11
- 229910052782 aluminium Inorganic materials 0.000 claims description 10
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims description 8
- 239000004115 Sodium Silicate Substances 0.000 claims description 6
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 6
- 229910052911 sodium silicate Inorganic materials 0.000 claims description 6
- 238000001132 ultrasonic dispersion Methods 0.000 claims description 6
- 239000003960 organic solvent Substances 0.000 claims description 5
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 4
- 229910002651 NO3 Inorganic materials 0.000 claims description 4
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 claims description 4
- 229910052799 carbon Inorganic materials 0.000 claims description 4
- 238000005498 polishing Methods 0.000 claims description 4
- 229910000838 Al alloy Inorganic materials 0.000 claims description 3
- 238000005406 washing Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 abstract description 3
- 230000000052 comparative effect Effects 0.000 description 8
- 239000002245 particle Substances 0.000 description 5
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- 230000005684 electric field Effects 0.000 description 3
- 239000000654 additive Substances 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000000151 deposition Methods 0.000 description 2
- 238000010891 electric arc Methods 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 229910052749 magnesium Inorganic materials 0.000 description 2
- 239000011777 magnesium Substances 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 238000005303 weighing Methods 0.000 description 2
- JLVVSXFLKOJNIY-UHFFFAOYSA-N Magnesium ion Chemical compound [Mg+2] JLVVSXFLKOJNIY-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 230000003213 activating effect Effects 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 238000005524 ceramic coating Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000008151 electrolyte solution Substances 0.000 description 1
- 229910001425 magnesium ion Inorganic materials 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000002086 nanomaterial Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
- C25D11/02—Anodisation
- C25D11/026—Anodisation with spark discharge
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
- C25D11/02—Anodisation
- C25D11/024—Anodisation under pulsed or modulated current or potential
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
- C25D11/02—Anodisation
- C25D11/04—Anodisation of aluminium or alloys based thereon
- C25D11/06—Anodisation of aluminium or alloys based thereon characterised by the electrolytes used
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
- C25D11/02—Anodisation
- C25D11/04—Anodisation of aluminium or alloys based thereon
- C25D11/18—After-treatment, e.g. pore-sealing
- C25D11/20—Electrolytic after-treatment
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D15/00—Electrolytic or electrophoretic production of coatings containing embedded materials, e.g. particles, whiskers, wires
- C25D15/02—Combined electrolytic and electrophoretic processes with charged materials
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Abstract
The invention provides a preparation method of a micro-arc oxidation corrosion-resistant ceramic layer containing graphene, which relates to the technical field of material surface processing, and comprises the following steps: according to the preparation method of the micro-arc oxidation corrosion-resistant ceramic layer containing the graphene, the micro-arc oxidation technology and the electrophoretic deposition technology are used for alternately acting, the graphene fragments are deposited on the ceramic layer through electrophoretic deposition, the graphene fragments deposited on the surface and in the holes are doped into the ceramic layer again through micro-arc oxidation, so that the corrosion resistance of the ceramic layer is improved, and the micro-arc oxidation ceramic layer containing the graphene and having better corrosion resistance is obtained.
Description
Technical Field
The invention relates to the technical field of material surface processing, in particular to a preparation method of a micro-arc oxidation corrosion-resistant ceramic layer containing graphene.
Background
Micro-arc oxidation, which is a method for strengthening and activating a reaction generated on an anode by utilizing arc discharge on the basis of common anodic oxidation so as to form a high-quality strengthened ceramic membrane on the surface of a workpiece made of metals such as aluminum, titanium, magnesium and the like and alloys thereof, is characterized in that a special micro-arc oxidation power supply is used for applying voltage on the workpiece, so that the metal on the surface of the workpiece interacts with an electrolyte solution to form micro-arc discharge on the surface of the workpiece, and the ceramic membrane is formed on the surface of the metal under the action of factors such as high temperature, an electric field and the like, so that the purpose of strengthening the surface of the workpiece is achieved.
Electrophoretic deposition refers to the process of depositing colloidal particles into a material in a stable suspension by the action of an electric field, and is called electrophoretic deposition. By adding two electrodes into the solution, the solid particles suspended in the solution move to the electrode with opposite charges to the particles under the action of electric field force, so that the solid particles are deposited on the workpiece to be coated.
Graphene is a hexagonal honeycomb-lattice two-dimensional carbon nanomaterial with extremely strong strength, extremely light weight, extremely high toughness and good conductivity, and can adsorb and desorb various atoms and molecules, so that the graphene material has a great development prospect in the field of material science and engineering.
The traditional preparation process of the micro-arc oxidation ceramic layer is to prepare the micro-arc oxidation ceramic layer by micro-arc oxidation under the condition of constant current or constant voltage, although the micro-arc oxidation ceramic layer can protect a substrate to a certain extent, the performance of the obtained coating cannot reach the optimal performance, and the ceramic layer still has better corrosion resistance by improving the preparation process.
At present, the preparation research on the graphene micro-arc oxidation ceramic layer is less, and although there are patents and articles for adding graphene into electrolyte, the corrosion resistance cannot be obviously improved because the graphene is not easy to enter the ceramic layer.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a preparation method of a micro-arc oxidation corrosion-resistant ceramic layer containing graphene, so that the micro-arc oxidation ceramic layer containing graphene with better corrosion resistance is obtained.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows: a preparation method of a micro-arc oxidation corrosion-resistant ceramic layer containing graphene comprises the following steps:
1) and pretreatment of the surface of the substrate:
polishing the surface of the substrate by using abrasive paper, and cleaning the surface of the substrate by using absolute ethyl alcohol and deionized water after the treatment is finished;
2) preparing micro-arc oxidation electrolyte;
preparing silicate system electrolyte by using deionized water, and standing the prepared silicate system electrolyte for 12 hours to obtain micro-arc oxidation electrolyte;
3) preparing electrophoretic deposition electrolyte:
adding graphene fragments into an organic solvent, performing ultrasonic dispersion for 2-3 hours, adding nitrate, and performing ultrasonic dispersion for 0.5-1 hour to obtain an electrophoretic deposition electrolyte;
4) preparing a ceramic layer:
①, placing the substrate into a micro-arc oxidation electrolyte, taking the pretreated substrate as an anode and a micro-arc oxidation electrolytic cell as a cathode, performing micro-arc oxidation on the substrate in the micro-arc oxidation electrolyte prepared in the step 2) for 5-10 min under the condition that the positive voltage and the negative voltage are in a ratio of 5:1 by adopting alternating current with the frequency of 50-500 Hz and the alternating pulse voltage of 400-700V in a constant-temperature water bath environment at 20 ℃, and cleaning the prepared first sample by using deionized water;
②, using a direct current power supply of 80-120V, using a carbon plate as an anode and a first sample as a cathode, putting the first sample into the electrophoretic deposition electrolyte prepared in the step 3) at room temperature for electrophoretic deposition for 3-7 min, and cleaning the prepared second sample with deionized water;
③, placing the second sample into the micro-arc oxidation electrolyte, performing micro-arc oxidation for 1-10 min under the micro-arc oxidation condition of step ①, taking out the second sample, washing the second sample with deionized water, immersing the second sample in the deionized water for 8h, and airing the second sample in the air.
The technical scheme of the invention is further improved as follows: the base body is made of valve metal.
The technical scheme of the invention is further improved as follows: the valve metal is aluminum or aluminum alloy.
The technical scheme of the invention is further improved as follows: adding 8-10 g/L sodium silicate and 1-2 g/L sodium hydroxide into deionized water in the step 2) to prepare silicate system electrolyte.
The technical scheme of the invention is further improved as follows: the organic solvent in the step 3) is isopropanol, and the volume ratio of the weight of the graphene to the isopropanol is 0.5-0.6.
The technical scheme of the invention is further improved as follows: the nitrate in the step 3) is magnesium nitrate, and the volume ratio of the weight of the magnesium nitrate to the organic solvent added with the graphene is 0.5-0.6.
Due to the adoption of the technical scheme, the invention has the technical progress that:
(1) the micro-arc oxidation and electrophoretic deposition interaction enables the micro-arc oxidized ceramic layer to be deposited, graphene can enter holes of the ceramic layer, and then the micro-arc oxidation is carried out for a short time, so that other corrosion-resistant particles are doped in the ceramic layer, and the corrosion resistance of the micro-arc oxidized ceramic layer is improved.
(2) Graphene is used as an additive and enters the micro-arc oxidation ceramic layer through a new process, so that the corrosion resistance of the prepared micro-arc oxidation ceramic layer is improved.
(3) The electrophoretic deposition adopts magnesium nitrate as an additive, can ensure that the graphene sheet layer is doped with magnesium ions to ensure that the graphene sheet layer is deposited on the surface of the matrix, reduces the magnesium metal which is the valve metal, can also ensure the normal operation of micro-arc oxidation, and can also play a role in protecting the matrix even if the deposited magnesium metal is not completely oxidized.
Drawings
Fig. 1 is a Tafel plot of films prepared according to comparative and example embodiments of the present invention, respectively.
Detailed Description
The present invention will be described in further detail with reference to the following examples:
a preparation method of a graphene-containing micro-arc oxidation corrosion-resistant ceramic layer comprises the steps of taking valve metal such as aluminum or aluminum alloy and the like as a substrate, performing micro-arc oxidation for a period of time through micro-arc oxidation and electrophoretic deposition interaction, forming a ceramic layer on the surface, depositing graphene on the surface of the ceramic layer through an electrophoretic deposition technology, and performing micro-arc oxidation for a period of time to enable graphene fragments deposited on the surface and in holes to be doped into the ceramic layer, so that the corrosion resistance of the micro-arc oxidation ceramic layer is enhanced, and finally the graphene-containing micro-arc oxidation ceramic layer with better corrosion resistance is obtained.
In one embodiment of the invention, a comparative example of a micro-arc oxidation coating prepared by using a common silicate electrolyte is given, and an example of a preparation method of a graphene-containing micro-arc oxidation corrosion-resistant ceramic layer is given.
Comparative example:
s1: polishing the surface of the aluminum sheet by using abrasive paper, and cleaning the surface of the aluminum sheet by using absolute ethyl alcohol and deionized water after the surface is treated;
s2: adding 8g/L sodium silicate and 2g/L sodium hydroxide into deionized water, uniformly stirring by using a stirring rod, and standing for 12 hours to completely dissolve the sodium silicate and the sodium hydroxide;
s3: using a metallic aluminum sheet obtained in S1 as an anode and a micro-arc oxidation electrolytic cell as a cathode, performing micro-arc oxidation in a micro-arc oxidation electrolyte prepared in S2 for 5min in an environment of a constant-temperature water bath at 20 ℃ under the conditions of 50Hz, an alternating-current pulse voltage of 594V and a positive-negative voltage ratio of 5:1, turning off a power supply, performing micro-arc oxidation again for 1min, cleaning the prepared sample with deionized water, immersing the sample in the deionized water for 8h, and airing the sample in the air (ensuring that the micro-arc oxidation time and sequence are the same to eliminate the corrosion resistance enhancement caused by secondary micro-arc oxidation, so as to prove that the corrosion resistance enhancement caused by electrophoretic deposition of graphene);
example (b):
s1: polishing the surface of the aluminum sheet by using abrasive paper, and cleaning the surface of the aluminum sheet by using absolute ethyl alcohol and deionized water after the surface is treated;
s2: adding 8g/L sodium silicate and 2g/L sodium hydroxide into deionized water, uniformly stirring by using a stirring rod, and standing for 12 hours to completely dissolve the sodium silicate and the sodium hydroxide to obtain micro-arc oxidation electrolyte;
s3: weighing 110mg of graphene fragments, adding the graphene fragments into 200mL of isopropanol, and performing ultrasonic dispersion for 2 hours;
s4: weighing 100mg of magnesium nitrate, adding the magnesium nitrate into the solution prepared in the S3, and performing ultrasonic dispersion for 0.5h to obtain electrophoretic deposition electrolyte;
s5: using the aluminum sheet obtained in the step S1 as an anode and a micro-arc oxidation electrolytic cell as a cathode, performing micro-arc oxidation on the substrate in the micro-arc oxidation electrolyte prepared in the step S2 for 5min under the condition that the positive voltage and the negative voltage are in a ratio of 5:1 by adopting alternating current with the frequency of 50Hz and the alternating current pulse voltage of 594V in the environment of constant-temperature water bath at the temperature of 20 ℃, and cleaning the prepared first sample by using deionized water;
s6: using a direct current power supply of 80V, using a carbon plate as an anode and a first sample after S5 as a cathode, putting the first sample into the electrophoretic deposition electrolyte prepared in S4 at room temperature for electrophoretic deposition for 5min, and cleaning the prepared second sample with deionized water;
s7, placing the second sample into the micro-arc oxidation electrolyte, performing micro-arc oxidation for 1min under the micro-arc oxidation condition of the step ①, taking out the second sample, washing the second sample with deionized water, immersing the second sample in the deionized water for 8h, and airing the second sample in the air.
In the step S3, the volume ratio of the weight of the graphene to the volume of the isopropanol is 0.5-0.6, and when the ratio is used, the graphene can be well dispersed in the solution.
In the step S4, the volume ratio of the weight of the magnesium nitrate to the isopropanol added with the graphene is 0.5-0.6, and after electrophoretic deposition, the graphene and the metal magnesium on the surface of the substrate are deposited on the surface of the metal aluminum sheet more uniformly.
Tafel plots for film layers prepared according to comparative and example embodiments of the present invention are shown in FIG. 1, where Lg [ J/Acm ]-2]Is the logarithm of the current density, and E is the potential.
The results of fitting the two Tafel curves of the comparative example and the example give the respective corrosion potentials and corrosion currents as follows:
| NO. | Ecorr/(V) | Icorr/(mA/cm2) |
| comparative example | -0.816451 | 3.54993E-08 |
| Examples | -0.806071 | 1.0985E-09 |
As can be seen from the above table, the ceramic layer prepared by the comparative example using the silicate system alone as the electrolyte has a certain improvement in corrosion resistance compared to the substrate, but still cannot satisfy the severe corrosion resistance condition. The micro-arc oxidation ceramic layer prepared by the invention has corrosion potential EcorrAnd corrosion current IcorrThe micro-arc oxidation ceramic coating is superior to a comparative example, has better corrosion resistance, can adapt to severer service conditions, and has more excellent wear resistance.
Claims (6)
1. A preparation method of a micro-arc oxidation corrosion-resistant ceramic layer containing graphene is characterized by comprising the following steps: the method comprises the following steps:
1) and pretreatment of the surface of the substrate:
polishing the surface of the substrate by using abrasive paper, and cleaning the surface of the substrate by using absolute ethyl alcohol and deionized water after the treatment is finished;
2) preparing micro-arc oxidation electrolyte;
preparing silicate system electrolyte by using deionized water, and standing the prepared silicate system electrolyte for 12 hours to obtain micro-arc oxidation electrolyte;
3) preparing electrophoretic deposition electrolyte:
adding graphene fragments into an organic solvent, performing ultrasonic dispersion for 2-3 hours, adding nitrate, and performing ultrasonic dispersion for 0.5-1 hour to obtain an electrophoretic deposition electrolyte;
4) preparing a ceramic layer:
①, placing the substrate into a micro-arc oxidation electrolyte, taking the pretreated substrate as an anode and a micro-arc oxidation electrolytic cell as a cathode, performing micro-arc oxidation on the substrate in the micro-arc oxidation electrolyte prepared in the step 2) for 5-10 min under the condition that the positive voltage and the negative voltage are in a ratio of 5:1 by adopting alternating current with the frequency of 50-500 Hz and the alternating pulse voltage of 400-700V in a constant-temperature water bath environment at 20 ℃, and cleaning the prepared first sample by using deionized water;
②, using a direct current power supply of 80-120V, using a carbon plate as an anode and a first sample as a cathode, putting the first sample into the electrophoretic deposition electrolyte prepared in the step 3) at room temperature for electrophoretic deposition for 3-7 min, and cleaning the prepared second sample with deionized water;
③, placing the second sample into the micro-arc oxidation electrolyte, performing micro-arc oxidation for 1-10 min under the micro-arc oxidation condition of step ①, taking out the second sample, washing the second sample with deionized water, immersing the second sample in the deionized water for 8h, and airing the second sample in the air.
2. The method for preparing the graphene-containing micro-arc oxidation corrosion-resistant ceramic layer according to claim 1, wherein the method comprises the following steps: the base body is made of valve metal.
3. The method for preparing the graphene-containing micro-arc oxidation corrosion-resistant ceramic layer according to claim 2, wherein the method comprises the following steps: the valve metal is aluminum or aluminum alloy.
4. The method for preparing the graphene-containing micro-arc oxidation corrosion-resistant ceramic layer according to claim 1, wherein the method comprises the following steps: adding 8-10 g/L sodium silicate and 1-2 g/L sodium hydroxide into deionized water in the step 2) to prepare silicate system electrolyte.
5. The method for preparing the graphene-containing micro-arc oxidation corrosion-resistant ceramic layer according to claim 1, wherein the method comprises the following steps: in the step 3), the organic solvent is isopropanol, and the volume ratio of the weight of the graphene to the isopropanol is 0.5-0.6.
6. The method for preparing the graphene-containing micro-arc oxidation corrosion-resistant ceramic layer according to claim 5, wherein the method comprises the following steps: the nitrate in the step 3) is magnesium nitrate, and the volume ratio of the weight of the magnesium nitrate to the isopropanol added with the graphene is 0.5-0.6.
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Cited By (2)
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| CN112251790A (en) * | 2020-10-22 | 2021-01-22 | 中国船舶重工集团公司第七二五研究所 | Preparation method of rare earth magnesium alloy structural member surface composite film layer |
| CN113981502A (en) * | 2021-10-29 | 2022-01-28 | 大连海事大学 | Aluminum alloy surface corrosion-resistant antifriction composite coating and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109338437A (en) * | 2018-12-05 | 2019-02-15 | 燕山大学 | A kind of alumina-graphite alkene composite coating and preparation method thereof |
| CN109898122A (en) * | 2019-04-12 | 2019-06-18 | 桂林理工大学 | Magnesium alloy surface micro-arc oxidation/graphene oxide composite film preparation method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109338437A (en) * | 2018-12-05 | 2019-02-15 | 燕山大学 | A kind of alumina-graphite alkene composite coating and preparation method thereof |
| CN109898122A (en) * | 2019-04-12 | 2019-06-18 | 桂林理工大学 | Magnesium alloy surface micro-arc oxidation/graphene oxide composite film preparation method |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112251790A (en) * | 2020-10-22 | 2021-01-22 | 中国船舶重工集团公司第七二五研究所 | Preparation method of rare earth magnesium alloy structural member surface composite film layer |
| CN112251790B (en) * | 2020-10-22 | 2021-12-24 | 中国船舶重工集团公司第七二五研究所 | Preparation method of rare earth magnesium alloy structural member surface composite film layer |
| CN113981502A (en) * | 2021-10-29 | 2022-01-28 | 大连海事大学 | Aluminum alloy surface corrosion-resistant antifriction composite coating and preparation method thereof |
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