Reflection-reducing wear-resistant metal ceramic coating feed, preparation method thereof and reflection-reducing wear-resistant metal ceramic coating

Abstract

The invention provides an anti-reflection wear-resistant metal ceramic coating feed, a preparation method thereof and an anti-reflection wear-resistant metal ceramic coating, and relates to the field of materials. Raw materials of the anti-reflection wear-resistant metal ceramic coating feed comprise a hard phase, a metal binding phase and an anti-reflection additive, the hard phase comprises tungsten carbide, the metal binding phase comprises Co and Cr, and the anti-reflection additive comprises one or more of graphene, graphite powder and graphite nanosheets. The preparation method comprises the following steps: mixing and dispersing the anti-reflection additive, the dispersing agent and the wet grinding medium, and then mixing and ball-milling with the hard phase, the metal binding phase and the ball-milling medium; mixing with a binder, and carrying out ball milling to obtain powder slurry; and carrying out spray drying to obtain pre-sintered composite powder, and sintering, crushing and screening the pre-sintered composite powder. According to the anti-reflection wear-resistant metal ceramic coating feed provided by the invention, a good anti-reflection effect is obtained after spraying and polishing, so that the requirement of a special workpiece on a coating with the performance of reducing reflection is met.

Description

Technical Field

[0001] The present application relates to the field of materials, and in particular to an anti-reflective wear-resistant metal ceramic coating feed material and a preparation method thereof, and an anti-reflective wear-resistant metal ceramic coating. Background Art

[0002] Due to the high hardness and good toughness of metal ceramics, thermal spraying metal ceramic coatings have been widely used in aerospace, metallurgy, petrochemical, machinery and other industries. Common spraying processes include: plasma spraying, flame spraying, and supersonic flame spraying. Supersonic flame spraying is particularly suitable for the spraying of metal ceramic materials. Supersonic flame spraying refers to the process of rapidly heating the binder phase in the powder to melt in the flame flow, and then the powder is rapidly sprayed onto the substrate surface with the flame flow and cooled to form a coating. The powder used for spraying is generally a composite powder, and each powder particle contains both a hard phase and a binder phase.

[0003] The coating after spraying has excellent properties such as wear resistance, but it encounters application problems in special circumstances: because the surface of the coating is semi-mirror after polishing or repeated friction, the finish is high and the coating surface is highly reflective, which makes the metal ceramic coating unusable on some special workpiece surfaces that are sensitive to reflection. Therefore, the demand for anti-reflective metal ceramic coatings is increasing. Summary of the invention

[0004] The purpose of the present application is to provide an anti-reflective wear-resistant metal ceramic coating feed material and a preparation method thereof and an anti-reflective wear-resistant metal ceramic coating to solve the above problems.

[0005] To achieve the above objectives, this application adopts the following technical solutions: An anti-reflective wear-resistant metal ceramic coating feed material, the raw materials of which include a hard phase, a metal bonding phase and an anti-reflective additive; The hard phase includes tungsten carbide, the metal bonding phase includes Co and Cr, and the anti-reflective additive includes one or more of graphene, graphite powder and graphite nanosheets.

[0006] Preferably, the mass ratio of the tungsten carbide, the Co and the Cr is (83-89): (8-12): (3-5), and the amount of the anti-reflective additive is 1.8%-2.2% of the total mass of the tungsten carbide, the Co and the Cr.

[0007] Preferably, the particle sizes of the tungsten carbide, the Co and the Cr are independently 300-3000 nm; The particle size of the anti-reflective additive is 500-2000nm.

[0008] The present application also provides a method for preparing the anti-reflective wear-resistant metal ceramic coating feed material, comprising: The anti-reflective additive, the dispersant and the wet grinding medium are mixed and dispersed, and then mixed with the hard phase, the metal binder phase and the ball grinding medium and then subjected to a first ball milling; The material obtained by the first ball milling is mixed with a binder, and a second ball milling is performed to obtain a powder slurry; The powder slurry is spray-dried to obtain a pre-sintered composite powder, and then the pre-sintered composite powder is sintered, crushed, and screened to obtain the anti-reflective wear-resistant metal ceramic coating feed.

[0009] Preferably, the dispersant includes a nonionic dispersant and a cationic dispersant; The nonionic dispersant includes Tween 80, and the cationic dispersant includes dodecyltrimethylammonium bromide; The mass ratio of the nonionic dispersant to the cationic dispersant is (4:6)-(6:4); The ratio of the total amount of the dispersant to the total mass of the hard phase, the metal binder phase and the anti-reflective additive is (0.5-4):100.

[0010] Preferably, the wet grinding medium comprises water; and / or, The ratio of the amount of the wet grinding medium to the total mass of the hard phase, the metal binder phase and the anti-reflective additive is (0.5-2):1.

[0011] Preferably, the ball milling media comprises zirconium oxide grinding balls; and / or, The first ball milling time is 12-48h, and the rotation speed is 200-300r / min; and / or, The second ball milling time is 0.5-2h, and the rotation speed is 200-300r / min.

[0012] Preferably, the binder comprises a saturated polyethylene glycol aqueous solution and / or a saturated polyvinyl alcohol aqueous solution; The ratio of the amount of the binder to the total mass of the hard phase, the metal binder phase and the anti-reflective additive is (0.5-1.5):100.

[0013] Preferably, the spray drying conditions include: air inlet temperature of 210-230°C, air outlet temperature of 100-110°C, and a peristaltic pump speed of 4-20r / min; and / or, The sintering comprises: sintering at 400° C.-600° C. for 0.5-1.5 h, and then sintering at 1100° C.-1400° C. for 1-4 h in an argon protective atmosphere.

[0014] The present application also provides an anti-reflective and wear-resistant metal ceramic coating, which is prepared using the anti-reflective and wear-resistant metal ceramic coating feed material.

[0015] Compared with the prior art, the beneficial effects of this application include: The anti-reflective wear-resistant metal ceramic coating feed provided in the present application utilizes the extremely high surface blackness and anti-reflective properties of graphene, and graphene is added to the metal ceramic feed, so that the coating obtains a good anti-reflective effect after spraying and polishing, thereby meeting the needs of special workpieces for a coating with "anti-reflective" properties.

[0016] The present application provides a method for preparing an anti-reflective and wear-resistant metal ceramic coating feedstock. After graphene is evenly dispersed under the action of a compound dispersant and a disperser, it is ball-milled together with metal ceramic raw material powder to form a uniformly mixed slurry, which is then spray-dried and granulated to obtain an anti-reflective and wear-resistant metal ceramic coating feedstock. The process is simple. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope of the present application.

[0018] Figure 1 The scanning electron microscope photograph of the feed obtained in Example 1; Figure 2 These are actual photos of the samples obtained in Example 1 and Comparative Example 1. DETAILED DESCRIPTION

[0019] In order to better explain the technical solution provided by this application, before the embodiments, the technical solution is first described as a whole, as follows: An anti-reflective wear-resistant metal ceramic coating feed material, the raw materials of which include a hard phase, a metal bonding phase and an anti-reflective additive; The hard phase includes tungsten carbide, the metal bonding phase includes Co and Cr, and the anti-reflective additive includes one or more of graphene, graphite powder and graphite nanosheets.

[0020] In an optional embodiment, the mass ratio of the tungsten carbide, the Co and the Cr is (83-89): (8-12): (3-5), and the amount of the reflective additive is 1.8%-2.2% of the total mass of the tungsten carbide, the Co and the Cr.

[0021] Graphene Gr is an allotrope of carbon, with carbon atoms in sp 2Hybrid bonding forms a single-layer hexagonal honeycomb lattice graphene, which has excellent optical, electrical and mechanical properties, and has important application prospects in materials science, micro-nano processing, energy, biomedicine and drug delivery.

[0022] Graphene has good self-lubricating properties. Therefore, if you want to maintain the original wear resistance of the coating without a significant decrease, adding a certain amount of graphene to the WC-based metal ceramic spray feed is an ideal anti-reflective solution.

[0023] It should be noted that the anti-reflective additive used in the present application is not limited to graphene, but can also be materials such as graphite powder and graphite nanosheets.

[0024] Optionally, the mass ratio of the tungsten carbide, the Co and the Cr can be 83:12:5, 85:11:4, 89:8:3 or any value between (83-89):(8-12):(3-5), and the amount of the reflective additive can be 1.8%, 1.9%, 2.0%, 2.1%, 2.2% or any value between 1.8% and 2.2% of the total mass of the tungsten carbide, the Co and the Cr.

[0025] In an optional embodiment, the particle sizes of the tungsten carbide, the Co and the Cr are independently 300-3000 nm; The particle size of the anti-reflective additive is 500-2000nm.

[0026] Optionally, the particle sizes of the tungsten carbide, the Co and the Cr may be independently 300nm, 500nm, 1000nm, 1500nm, 2000nm, 2500nm, 3000nm or any value between 300-3000nm; the particle size of the anti-reflective additive may be 500nm, 1000nm, 1500nm, 2000nm or any value between 500-2000nm.

[0027] The present application also provides a method for preparing the anti-reflective wear-resistant metal ceramic coating feed material, comprising: The anti-reflective additive, the dispersant and the wet grinding medium are mixed and dispersed, and then mixed with the hard phase, the metal binder phase and the ball grinding medium and then subjected to a first ball milling; The purpose is to fully solve the adverse factors such as electrostatic agglomeration of each component powder and make them fully mixed in the wet grinding medium. The experimental effect is good. After the mixed material is dried, the powders of each component are mixed evenly.

[0028] The material obtained by the first ball milling is mixed with a binder, and a second ball milling is performed to obtain a powder slurry; The purpose is to fully mix the binder with the material to obtain a slurry that meets the requirements of spray granulation. The experimental effect is good, meeting the slurry requirements for spray granulation, and spray granulation can be carried out smoothly.

[0029] The powder slurry is spray-dried to obtain a pre-sintered composite powder, and then the pre-sintered composite powder is sintered, crushed, and screened to obtain the anti-reflective wear-resistant metal ceramic coating feed.

[0030] The purpose of sintering the pre-sintered composite powder obtained by spray drying is to remove the binder in the powder and use high temperature to make the powder components such as WC and Co undergo phase change, making the powder particles denser and harder. At the same time, screening can also obtain powders with smaller particle size distribution, which are more suitable for coating spraying. After this step, the powder is easier to transport and spray.

[0031] Ball milling: ball-milling in English, is a kind of grinding method that mainly uses balls as the medium, and uses impact, extrusion, and friction to achieve material crushing. During the ball milling process, the grinding balls that are given kinetic energy will move at high speed in a sealed container, and then collide with the materials. After the impact, the materials will break and split into smaller materials, thereby achieving fine grinding of the samples. Ball milling is mostly used to crush and refine materials, and can also be used for mixing materials. Common laboratory ball mills include drum ball mills, planetary ball mills, vibration ball mills, etc.

[0032] Spray drying: The raw material powder is evenly dispersed in a solvent containing a binder (such as water, anhydrous ethanol). The slurry becomes droplets under the action of centrifugal force or pressure of the spray dryer. The droplets are spherical due to surface tension. The solvent in the droplets evaporates under the action of hot air. The mixed powder is agglomerated into spherical particles with a certain strength under the action of the binder.

[0033] Binder: It is needed when composite powder is granulated. Its function is to increase the viscosity of powder slurry, making it easier to spray dry and form granules.

[0034] In an optional embodiment, the dispersant includes a nonionic dispersant and a cationic dispersant; The nonionic dispersant includes Tween 80, and the cationic dispersant includes dodecyltrimethylammonium bromide; The mass ratio of the nonionic dispersant to the cationic dispersant is (4:6)-(6:4); The ratio of the total amount of the dispersant to the total mass of the hard phase, the metal binder phase and the anti-reflective additive is (0.5-4):100.

[0035] Optionally, the mass ratio of the nonionic dispersant to the cationic dispersant can be 4:6, 5:5, 6:4 or any value between (4:6) and (6:4); the ratio of the total amount of the dispersant to the total mass of the hard phase, the metal binder phase and the anti-reflective additive can be 0.5:100, 1:100, 1.5:100, 2:100, 2.5:100, 3:100, 3.5:100, 4:100 or any value between (0.5-4):100.

[0036] In an alternative embodiment, the wet grinding medium comprises water; and / or, The ratio of the amount of the wet grinding medium to the total mass of the hard phase, the metal binder phase and the anti-reflective additive is (0.5-2):1; Optionally, the ratio of the amount of the wet grinding medium to the total mass of the hard phase, the metal binder phase and the anti-reflective additive can be 0.5:1, 1:1, 1.5:1, 2:1 or any value between (0.5-2):1; and / or, The ball milling media includes zirconium oxide grinding balls; and / or, The first ball milling time is 12-48h, and the rotation speed is 200-300r / min; and / or, The second ball milling time is 0.5-2h, and the rotation speed is 200-300r / min.

[0037] Optionally, the time of the first ball milling can be 12h, 18h, 24h, 30h, 36h, 42h, 48h or any value between 12-48h, and the rotation speed can be 200r / min, 250r / min, 300r / min or any value between 200-300r / min; the time of the second ball milling can be 0.5h, 1h, 1.5h, 2h or any value between 0.5-2h, and the rotation speed can be 200r / min, 250r / min, 300r / min or any value between 200-300r / min.

[0038] In an optional embodiment, the binder includes a saturated polyethylene glycol aqueous solution and / or a saturated polyvinyl alcohol aqueous solution; The ratio of the amount of the binder to the total mass of the hard phase, the metal binder phase and the anti-reflective additive is (0.5-1.5):100.

[0039] Optionally, the ratio of the amount of the binder to the total mass of the hard phase, the metal binder phase and the anti-reflective additive can be 0.5:100, 1:100, 1.5:100 or any value between (0.5-1.5):100.

[0040] In an optional embodiment, the spray drying conditions include: an inlet air temperature of 230°C, an outlet air temperature of 110°C, and a peristaltic pump speed of 4-20 r / min; and / or, The sintering comprises: sintering at 400° C.-600° C. for 0.5-1.5 h, and then sintering at 1100° C.-1400° C. for 1-4 h in an argon protective atmosphere.

[0041] Optionally, in the spray drying conditions, the air inlet temperature can be 210°C, 220°C, 230°C or any value between 210-230°C, the air outlet temperature can be 100°C, 105°C, 110°C or any value between 100-110°C, and the speed of the peristaltic pump can be 4r / min, 5r / min, 10r / min, 15r / min, 20r / min or any value between 4-20r / min; the sintering In the program, first sinter at 400°C, 450°C, 500°C, 550°C, 600°C or any temperature condition between 400°C and 600°C for 0.5h, 1h, 1.5h or any time between 0.5-1.5h, and then sinter at 1100°C, 1200°C, 1300°C, 1400°C or any temperature condition between 1100°C and 1400°C for 1h, 2h, 3h, 4h or any time between 1-4h.

[0042] The present application also provides an anti-reflective and wear-resistant metal ceramic coating, which is prepared using the anti-reflective and wear-resistant metal ceramic coating feed material.

[0043] Metal ceramic thermal spray coating: refers to the metal ceramic coating formed on the surface of the base material by thermal spraying equipment after mixing the raw powder of metal ceramic. For example: thermal spray tungsten carbide coating has been widely used in aerospace, metallurgy, petrochemical, machinery and other industries. The powder particle size used is generally 22~53 microns, 15~45 microns, 10~38 microns, 5~30 microns, etc.

[0044] Thermal spraying technology is a method of using a heat source to heat the spray material to a molten or semi-molten state, and spraying and depositing it onto the pre-treated substrate surface at a certain speed to form a coating. It includes combustion flame spraying, arc spraying, plasma spraying, etc.

[0045] The embodiments of the present application will be described in detail below in conjunction with specific examples, but it will be appreciated by those skilled in the art that the following examples are only used to illustrate the present application and should not be considered as limiting the scope of the present application. If specific conditions are not specified in the examples, they are carried out according to normal conditions or the conditions recommended by the manufacturer. If the manufacturer is not specified in the reagents or instruments used, they are all conventional products that can be purchased commercially.

[0046] Example 1 This embodiment provides an anti-reflective wear-resistant metal ceramic coating feed material, and the preparation method thereof is as follows: (1) Put water in a beaker, then add the compound dispersant into the water and stir evenly, then add Gr powder (graphene) into the water and disperse it in an ultrasonic disperser for 30 minutes to obtain a water-based slurry with uniform Gr dispersion. Put this water-based slurry into a ball mill, add zirconium oxide grinding balls, then add WC, Co, and Cr powders into the ball mill and stir, then perform planetary ball milling for 24 hours, then add a binder (aqueous solution of polyethylene glycol with a mass fraction of 10%), and ball mill again for 1 hour to obtain a mixed slurry; The ball milling speed is 200r / min; the compound dispersant is a compound of Tween 80 and dodecyltrimethylammonium bromide, with a mass ratio of 4:6; the mass ratio of the WC powder, Co powder and Cr powder is WC:Co:Cr=86:10:4; the total mass ratio of Gr powder to WC, Co and Cr powder is Gr:(WC+Co+Cr)=2:100; the total mass ratio of zirconia grinding balls to all powders is 1:1; the mass ratio of water to the total mass of powder (Gr+WC+Co+Cr) is 1:1; and the mass ratio of binder to the total mass of powder is 3:100.

[0047] (2) The temperature of the mixed slurry obtained in step (1) is controlled at 50° C., and then spray granulation is performed to obtain a composite powder; the process parameters of the spray granulation are: an inlet air temperature of 230° C., an outlet air temperature of 110° C., and a peristaltic pump speed of 8 r / min.

[0048] (3) The composite powder obtained in step (2) is placed in a corundum crucible and sintered in a vacuum tube furnace. The sintered powder is sieved through a 400-mesh sieve to obtain a powder with a particle size of -400 mesh, i.e., the anti-reflective metal ceramic coating feed material is obtained. The high-temperature sintering process parameters are: first, heating from room temperature to 600°C at 5°C / min and keeping warm for 1 hour; second, heating from 600°C to 1200°C at 5°C / min and keeping warm for 1 hour, and finally cooling to room temperature with the furnace.

[0049] Example 2 Embodiment 2 is substantially the same as Embodiment 1, except that: In step (1), the mass ratio of the Gr powder added in Example 2 to the total mass ratio of the WC, Co, and Cr powders is Gr: (WC+Co+Cr) = 3:100.

[0050] Example 3 Embodiment 3 is substantially the same as Embodiment 1, except that: In step (1), the mass ratio of the Gr powder added in Example 3 to the total mass ratio of the WC, Co, and Cr powders is Gr: (WC+Co+Cr) = 4:100.

[0051] In other embodiments, graphene may be replaced by materials such as graphite powder, graphite nanosheets, etc. It is understood that a mixture of graphene, graphite powder, and graphite nanosheets may also be used.

[0052] Comparative Example 1 Comparative Example 1 is substantially the same as Example 1, except that in step (1), no Gr powder is added in Comparative Example 1.

[0053] Comparative Example 2 Comparative Example 2 is substantially the same as Example 1, except that in step (1), the mass ratio of Gr powder added in Comparative Example 2 to the total mass ratio of WC, Co, and Cr powders is Gr: (WC+Co+Cr) = 1:100.

[0054] Comparative Example 3 Comparative Example 3 is substantially the same as Example 1, except that in step (1), the mass ratio of Gr powder added in Comparative Example 3 to the total mass ratio of WC, Co, and Cr powders is Gr: (WC+Co+Cr) = 5:100.

[0055] The feed obtained in Example 1 was observed by scanning electron microscope, and the Figure 1 .

[0056] The feed materials obtained in Examples 1 to 3 and Comparative Examples 1 to 3 were sprayed to obtain coating samples, which were cut into pieces and mounted, and then subjected to microhardness tests and visible light reflectance tests, which are listed in Table 1 and Table 2, respectively, to characterize their wear resistance and reflectance; the instruments used were a microhardness tester and a visible light diffuse reflectance spectrometer, respectively; The macroscopic surface morphology of the comparative example 1 and the embodiment 1 was photographed to obtain Figure 2 (The left picture is a real picture of the sample obtained in Comparative Example 1, and the right picture is a real picture of the sample obtained in Example 1), to reflect the improvement of the anti-reflective performance on a macro scale.

[0057] Table 1 Hardness test results Sample No. Example 1 Example 2 Example 3 Comparative Example 1 Comparative Example 2 Comparative Example 3 Gr powder addition amount in feed / wt% 2 3 4 0 1 5 Coating hardness / HV5 900 780 560 1060 1032 270 Table 2 Visible light reflectance test results Sample No. Example 1 Example 2 Example 3 Comparative Example 1 Comparative Example 2 Comparative Example 3 Gr powder addition amount in feed / wt% 2 3 4 0 1 5 Visible light reflectance / % 37.4 37.4 33.3 50 47 23.1 From Table 1, Table 2, Figure 2 It can be seen from the results that when the addition amount of Gr is 2wt% (Example 1), it not only meets the requirements of the coating on hardness, but also meets the requirements of the coating on anti-reflective performance.

[0058] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A anti-reflective wear-resistant metal ceramic coating feed, characterized in that: Its raw materials include a hard phase, a metal bonding phase and an anti-reflective additive; The hard phase includes tungsten carbide, the metal bonding phase includes Co and Cr, and the anti-reflective additive includes one or more of graphene, graphite powder and graphite nanosheets.

2. The anti-reflective wear-resistant metal ceramic coating feed material according to claim 1, characterized in that: The mass ratio of the tungsten carbide, the Co and the Cr is (83-89): (8-12): (3-5), and the amount of the anti-reflective additive is 1.8%-2.2% of the total mass of the tungsten carbide, the Co and the Cr.

3. The anti-reflective wear-resistant metal ceramic coating feed according to claim 1 or 2, characterized in that: The particle sizes of the tungsten carbide, the Co and the Cr are independently 300-3000 nm; The particle size of the anti-reflective additive is 500-2000nm.

4. A method for preparing the anti-reflective wear-resistant metal ceramic coating feed material according to any one of claims 1 to 3, characterized in that: include: The anti-reflective additive, the dispersant and the wet grinding medium are mixed and dispersed, and then mixed with the hard phase, the metal binder phase and the ball grinding medium and then subjected to a first ball milling; The material obtained by the first ball milling is mixed with a binder, and a second ball milling is performed to obtain a powder slurry; The powder slurry is spray-dried to obtain a pre-sintered composite powder, and then the pre-sintered composite powder is sintered, crushed, and screened to obtain the anti-reflective wear-resistant metal ceramic coating feed.

5. The method for preparing the anti-reflective wear-resistant metal ceramic coating feedstock according to claim 4, characterized in that: The dispersant includes a nonionic dispersant and a cationic dispersant; The nonionic dispersant includes Tween 80, and the cationic dispersant includes dodecyltrimethylammonium bromide; The mass ratio of the nonionic dispersant to the cationic dispersant is (4:6)-(6:4); The ratio of the total amount of the dispersant to the total mass of the hard phase, the metal binder phase and the anti-reflective additive is (0.5-4):

100.

6. The method for preparing the anti-reflective wear-resistant metal ceramic coating feedstock according to claim 4, characterized in that: The wet grinding medium includes water; and / or, The ratio of the amount of the wet grinding medium to the total mass of the hard phase, the metal binder phase and the anti-reflective additive is (0.5-2):

1.

7. The method for preparing the anti-reflective wear-resistant metal ceramic coating feedstock according to claim 4, characterized in that: The ball milling media includes zirconium oxide grinding balls; and / or, The first ball milling time is 12-48h, and the rotation speed is 200-300r / min; and / or, The second ball milling time is 0.5-2h, and the rotation speed is 200-300r / min.

8. The method for preparing anti-reflective wear-resistant metal ceramic coating feedstock according to claim 4, characterized in that: The binder includes a saturated polyethylene glycol aqueous solution and / or a saturated polyvinyl alcohol aqueous solution; The ratio of the amount of the binder to the total mass of the hard phase, the metal binder phase and the anti-reflective additive is (0.5-1.5):

100.

9. The method for preparing the anti-reflective wear-resistant metal ceramic coating feed according to any one of claims 4 to 8, characterized in that: The spray drying conditions include: air inlet temperature of 210-230°C, air outlet temperature of 100-110°C, and a peristaltic pump speed of 4-20r / min; and / or, The sintering comprises: sintering at 400° C.-600° C. for 0.5-1.5 h, and then sintering at 1100° C.-1400° C. for 1-4 h in an argon protective atmosphere.

10. An anti-reflective wear-resistant metal ceramic coating, characterized in that: The anti-reflective wear-resistant metal ceramic coating feed material is used to prepare the coating.

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