312 results about "Ceramic metal" patented technology

The invention discloses an Ag-Cu-Ti-Zr-B active composite brazing filler metal and a preparation method of the Ag-Cu-Ti-Zr-B active composite brazing filler metal. The active composite brazing filler metal is composed of, by mass, 5%-8% of Ti, 2%-5% of Zr, 0.1%-2% of B and the balance Ag-28Cu eutectic components. The Ag-Cu-Ti-Zr-B active composite brazing filler metal prepared through the method has the advantages that the wettability is improved, the interface bonding strength is enhanced, the joint structure is refined, the brazing temperature is reduced, the fluidity and permeability are improved, and the heat resistance and corrosion resistance are improved. Due to the characteristics, the brazing filler metal becomes excellent brazing filler metal in ceramic metal brazing, and is particularly suitable for connection of high-performance ceramic and metal.

The invention discloses a ceramic-metal composite structure with a low thermal expansion coefficient and a middle layer for assisting two-step temperature control brazing and a preparation method of the ceramic-metal composite structure. The composite structure is formed by metallurgical bonding of a ceramic matrix, a titanium-containing active brazing filler metal layer, a low-thermal-expansion-coefficient (2 * 10 <-6 > / K-9 * 10 <-6 > / K) middle layer, a low-temperature brazing filler metal layer and metal base metal in sequence. During preparation, a step-by-step temperature control brazing process is adopted, wherein in the first step, ceramic / intermediate layer connection is achieved through titaniferous active brazing filler metal with the solidus larger than or equal to 780 DEG C under the vacuum condition smaller than or equal to 5 * 10 <-3 > Pa; and secondly, under the vacuum or inert atmosphere, brazing filler metal with the solidus being smaller than or equal to 650 DEG C is adopted for completing connection of the middle layer and the metal base metal. The low-stress and high-strength ceramic-metal composite structure is successfully constructed on the basis of the thermal matching design of the low-thermal-expansion-coefficient middle layer and the ceramic and the stress gradient release mechanism of the two-step temperature control brazing process in a cooperative coupling mode, and the low-stress and high-strength ceramic-metal composite structure is particularly suitable for the high-temperature and high-reliability fields of aerospace thermal protection systems, high-power electronic device packaging and the like.

Disclosed in the present invention is a photocuring-type ceramic-metal composite 3D printer. A support is used for mounting and supporting an irradiation system, a spray coating mechanism, a scrape coating mechanism and a printing platform which are sequentially arranged from top to bottom. The irradiation system, the spray coating mechanism and the scrape coating mechanism each comprise a driving assembly so as to move close to or away from the printing platform. The spray coating mechanism and the scrape coating mechanism are separately connected to and communicated with a ceramic slurry conveying apparatus or a metal slurry conveying apparatus. The present invention uses a reasonable and ingenious layout and design in the vertical direction according to working distances and working features of the scrape coating mechanism, the spray coating mechanism and the irradiation system, thus enabling all the mechanisms and systems to cooperate well during operation, and enabling the present invention to have a simple and compact structure, which facilitates controlling the size of a finished product of the 3D printer. The present invention allows printing slurries of different materials simultaneously or alternately, and, in combination with photocuring technology, can be directly applied to production and manufacturing of green bodies of ceramic electronic components, thereby improving the manufacturing efficiency and quality of green bodies of ceramic electronic components.

The invention discloses a preparation method of a high-temperature excitation coil based on an AMB process, and relates to the technical field of magnetic levitation, and the preparation method specifically comprises the following steps: S1, silicon nitride ceramic is perforated; s2, through hole filling and surface screen printing; s3, carrying out vacuum sintering on the metal foil and the silicon nitride ceramic; s4, performing coil patterning and surface treatment; s5, preparing a single-layer silicon nitride ceramic metal coil; s6, preparing a ceramic isolation sheet; s7, performing lamination and vacuum sintering; the magnet exciting coil prepared by the invention has relatively good reliability and long service life in a service environment of 550-600 DEG C.

The invention belongs to the technical field of post-treatment of ceramic / metal composite materials, and particularly relates to a high-content ceramic / metal composite material and a preparation method thereof. In order to reduce the existence of micro gaps on the surface of the ceramic / metal composite material and improve the performance of the ceramic / metal composite material, a high-content ceramic / metal composite material blank is prepared by adopting a spark plasma sintering method, and then high-frequency pulse current is added to assist rolling; and finally, the high-content ceramic / metal composite material with micro-gap healing and improved performance is obtained.

The invention relates to the technical field of metal electrodes, and discloses a metal electrode, a preparation method and an optoelectronic device. The invention discloses a preparation method of a metal electrode. The preparation method comprises the following steps: S1, preparing a mask layer on a substrate of which the surface is covered with a transparent conductive film; s2, performing laser grooving on the surface of the mask layer to expose the metal seed layer; s3, a metal conducting layer is prepared on the metal seed layer through electroplating, and a metal electrode is obtained; wherein the substrate is selected from one of glass, a flexible material, ceramic, metal, a wafer and mica. The preparation method of the metal electrode provided by the invention is short in process, simple to operate, wide in mask layer selection range, strong in electrode adhesion, high in electrode processing precision, high in designability, simple in electroplating mode, strong in electroplating liquid adaptability, low in cost and high in production efficiency, and the corrosion resistance of the transparent conductive film can be improved.

An electrically conductive ceramic-metal composite brick is formed of a Cr2O3 containing ceramic material into which is incorporated metallic chromium agglomerates having a melting temperature in excess of 1300 C, in some instances in excess of 1500 C. The ceramic-metal composite brick can be incorporated into an electrically heated thermal energy storage system or a resistive heating system as one or both of a heating element and an electrode.

The invention provides a method for metallizing a homogeneous oxide ceramic surface, and belongs to the technical field of ceramic metallization. The metallization method comprises the steps of pretreatment, primary deposition, metallization slurry preparation, coating and sintering. The primary deposition comprises the following steps: putting the pretreated ceramic into modified titanium dioxide sol, drying and calcining to obtain primarily deposited ceramic; a preparation method of the modified titanium dioxide sol comprises the following steps: adding tetrabutyl titanate into absolute ethyl alcohol, and then adding formylated alumina fibers to obtain a reaction solution A; adding deionized water and glacial acetic acid into absolute ethyl alcohol to obtain a reaction solution B; adding the reaction liquid A into the reaction liquid B, heating to 44-48 DEG C, adding 4-vinyl aniline, and carrying out heat preservation and stirring to obtain titanium dioxide sol; by adopting the metallization method disclosed by the invention, the uniformity is good, the binding force between the ceramic and the metal coating is strong, the compression-shear strength is high, and the high and low temperature cycle resistance is excellent.

The invention provides a Cr12MoV cold work die steel repairing method based on a laser cladding technology and application of the Cr12MoV cold work die steel repairing method. Ultrasonic-assisted laser cladding is adopted, and a Ni60 / WC ceramic metal composite coating is formed; the mixed powder material for laser cladding comprises the following components in percentage by weight: 10 to 25 percent of WC ceramic powder, 0.2 to 1 percent of Zr powder, 0.2 to 1 percent of La2O3 rare earth powder and the balance of Ni60 alloy powder. According to the Cr12MoV cold work die steel repairing method based on the laser cladding technology and the application, the ultrasonic-assisted laser cladding technology is adopted, a cladding coating which is few or free of pore cracks, compact in structure and small in grain size is obtained, the compactness and uniformity of the coating are improved, the quality of the coating can be effectively improved while the operation technology is simplified, and the service life of the coating is prolonged. And the microstructure and the macroscopic performance of the coating are optimized, and the coating can be suitable for repairing the surface of the Cr12MoV cold roller.

The invention provides an integration method of a metal substrate and a ceramic substrate, a substrate structure and a composite substrate. The integration method of the metal and the ceramic substrate comprises the following specific steps: carrying out surface treatment on a ceramic substrate raw material and cutting the ceramic substrate raw material into an initial ceramic substrate according to a preset specification; performing surface treatment on a metal sheet raw material and cutting the metal sheet raw material into initial metal sheets according to the preset specification; the N initial ceramic substrates and the N + 1 initial metal sheets are sequentially overlaid and pressed in an alternate and spaced mode, and a combination of the ceramic substrates and the metal sheets is obtained; sintering the combined body to form a first MCMI substrate; the first MCMI substrate is flattened, and a pretreated MCMI substrate is obtained; carrying out surface metallization treatment on the pretreated MCMI substrate to obtain a final MCMI substrate; wherein N is an integer greater than 0. When the MCMI substrate, namely the multilayer ceramic metal integrated substrate, is applied to a packaging structure, the number of interface layers between dissimilar materials in the packaging structure can be reduced, and the heat dissipation effect is improved.

A metal ceramic pipe end face printing device comprises an operation table, a supporting frame is fixedly installed on the table top of the operation table, a lifting frame capable of moving up and down is installed on the supporting frame, an upper translation frame capable of moving left and right is installed on the lifting frame, and a printing scraping plate and an upper cleaning scraping plate capable of moving up and down are installed on the upper translation frame and arranged left and right. A printing screen is fixedly mounted on the lifting frame and below the upper translation frame; a lower translation frame capable of moving left and right is mounted on the support frame and below the printing screen; and a lower cleaning scraper capable of moving up and down is mounted on the lower translation frame. The mechanical degree is high, the labor intensity of workers can be reduced, the operation time can be shortened, the production efficiency can be improved, and the printing quality can be improved; and after the printing operation is finished, the residual ceramic metallization printing paste on the upper surface and the lower surface of the printing net is scraped to one side of the printing net, so that the residual ceramic metallization printing paste is prevented from influencing the next printing of the metal ceramic tube, and the printing quality of the metal ceramic tube is improved.

The processes and products described herein optimize transformation of BNNT as-synthesized material into BNNT intermediary materials. Process steps include refining to remove boron particulates, high temperature refining to break bonds between BNNT, h-BN nanocages, h-BN nanosheets and amorphous BN particles, centrifuging and microfluidic separation, and electrophoresis. Resultant BNNT intermediary materials include purified BNNT in solution, BNNT gels, h-BN nanocages, and h-BN nanosheets, gel spun BNNT fibers, hydrophilic defect enhanced BNNT materials, BNNT patterned sheets, and BNNT strands. Applications that will utilize these BNNT precursor feedstock materials include making BNNT based aligned components, thin films, aerogels, thermal conductivity enhancements, structural materials, ceramic, metal, and polymer composites, and removal of PFAS pollutants from water.

The invention discloses a method for metallizing ceramic by using whisker pinning, and relates to a method for metallizing ceramic. The technical problems that an existing ceramic metallization process is complex, the application range is small, and cost is high are solved. According to the method, boric acid is adopted to heat the surface of the ceramic containing the Al element, the aluminum borate crystal whiskers in the micro-nano size level can grow, and the crystal whiskers are high in high-temperature strength; then the ceramic with the whisker structure and the metal are subjected to hot pressing at a high temperature, the metal material is softened at a high temperature along with temperature rise, the whiskers can be pressed into the metal, a microcosmic pinning structure is formed, connection between the ceramic and the metal is achieved, and metallized ceramic is obtained; and then in the cooling process, the metal is cooled and shrunk, stress is formed on the crystal whiskers, and the binding force of the ceramic and the metal is improved. According to the method, ceramic metallization is achieved through whisker pinning, operation is simple and effective, and the obtained metallization layer is excellent in performance, good in mechanical stability and wide in application range and has good application prospects.

The invention relates to the field of particle accelerators, in particular to an ultrahigh and extremely high vacuum acquisition system and method. The vacuum obtaining system comprises a vacuum obtaining device and a vacuum temperature control device, the vacuum obtaining device comprises a ceramic vacuum chamber, an interlayer vacuum chamber, a main pump chamber, a first vacuum pumping assembly and a second vacuum pumping assembly, the main vacuum chamber is formed in the ceramic vacuum chamber, and the ceramic vacuum chamber is arranged in the interlayer vacuum chamber; and an interlayer space is formed between the ceramic vacuum chamber and the interlayer vacuum chamber. The ceramic vacuum chamber is arranged in the interlayer vacuum chamber, the interlayer space is formed between the ceramic vacuum chamber and the interlayer vacuum chamber, and the interlayer vacuum chamber is heated through the heating element, so that the ceramic vacuum chamber is uniformly heated in a non-contact heat radiation uniform heating mode; the problem of thermal stress concentration caused by direct conduction heating of the ceramic vacuum chamber is thoroughly eliminated, leakage or fracture of the ceramic-metal joint caused by thermal stress is avoided, and the structural integrity of a heterogeneous material connecting area is ensured.

The invention discloses a brazing method for an in-situ synthesis titanium-rich phase reinforced ceramic / metal joint. According to the method, the controllable in-situ reaction is realized in the ceramic-metal joint by designing the multi-element alloy brazing filler metal containing the Ti active element and matching with the gradient temperature control brazing process. The method specifically comprises the following steps: preparing multi-element alloy foil brazing filler metal containing 0.1-10wt.% of Ti; carrying out surface pretreatment on the connection surface; vacuum brazing is carried out by adopting two-section type heating and three-section type controlled cooling; and a titanium-rich reinforcement phase of 0.1-5 microns is generated in situ in the welding seam through a Ti element diffusion reaction. The method effectively solves the key technical problems that the mechanical strength of a ceramic / metal heterogeneous joint is reduced due to insufficient weld joint strength and concentrated accumulation of residual stress of the joint, and the like, and is particularly suitable for reliable connection requirements of precise components in the fields of aerospace, energy equipment and the like.

A thermal curing type ceramic-metal composite 3D printer, comprising a base (1) and a working table (3). Load-bearing columns (2) are provided between the base (1) and the working table (3); a printing device (4) is provided on the working table (3); a heat source assembly (7) is provided above the printing device (4); a scrape-coating module (6) and an extrusion module (5) are respectively provided on two sides of the printing device (4), and the printing device (4) carries out a reciprocating motion between the scrape-coating module (6) and the extrusion module (5); and the printing device (4) comprise an X-axis translation module (41), a Y-axis translation module (42), a Z-axis raising / lowering module (43), and a print bed (44). By means of the reciprocating motion of the printing device (4) between the scrape-coating module (6) and the extrusion module (5), the composite printing and manufacturing of ceramic-metal composite materials stacked layer by layer is implemented, such that novel ceramic-metal composite devices can be rapidly developed, and the development cycle of ceramic-metal composite devices is shortened.

The utility model discloses a ceramic metallization sintering cooling device, which belongs to the technical field of ceramic metallization, aims at solving the problems that the protection effect of a chip is poor and the cooling effect is poor when the chip works, and comprises a protection plate, a lead support plate and a chip, and a protection groove is formed in the center of the bottom end of the protection plate. Heat dissipation openings distributed in parallel are formed in the four walls of the protection plate correspondingly, protection mechanisms are arranged at the four corners of the inner wall of the protection plate correspondingly, each protection mechanism comprises a plurality of movable grooves, stress springs are fixed to the top ends of the inner walls of the multiple movable grooves correspondingly, movable blocks are fixed to the bottom ends of the stress springs correspondingly, and a plurality of air cushions distributed in a four-corner mode are fixed to the bottom ends of the protection grooves correspondingly. The top end of the chip is attached to the air cushion; according to the utility model, the protection plate, the air cushion, the protection mechanism, the connecting rod, the movable groove, the stress spring and the movable block cooperate with each other for operation, so that the chip can be protected when the chip is pressed, and the chip is prevented from being damaged when the chip is pressed.

The invention provides an integration method of a metal substrate and a ceramic substrate, a substrate structure and a packaging structure. The integration method comprises the following steps: carrying out surface treatment on a ceramic substrate raw material and cutting the ceramic substrate raw material into an initial ceramic substrate according to a preset first specification; performing surface treatment on the metal sheet raw material and cutting the metal sheet raw material into initial metal sheets according to a preset second specification; a plurality of initial ceramic substrates and initial metal sheets are sequentially stacked and pressed in an alternate and spaced mode, and a combination of the ceramic substrates and the metal sheets is obtained; sintering the combined body to form an MCMI mother board; the MCMI mother board is cut according to a preset third specification, and first MCMI sheets with the same layer number as the MCMI mother board are obtained; grinding and polishing the first MCMI sheet to obtain a pretreated MCMI sheet; and carrying out surface metallization treatment on the pretreated MCMI sheet to obtain the MCMI substrate. When the MCMI substrate, namely the multilayer ceramic metal integrated substrate, is applied to a packaging structure, the number of interface layers in the packaging structure can be reduced, and the heat dissipation effect is improved.

The invention discloses a gradient functional material BJ printing device and method based on array nozzles. Comprising a printing base plate which is vertically and movably arranged, three independent powder feeding spray heads, a binder spray head, a binder storage tank, a spray head fixing disc, a high-speed camera used for synchronously capturing the bonding condition of a binder and powder, a horizontal sliding rail, a water balance beam and a leveling roller used for leveling the set powder. Wherein the three powder feeding spray heads and the binder spray head are fixedly arranged on a spray head fixing disc which is horizontally and movably arranged, and the high-speed camera is arranged on the lower surface of the spray head fixing disc and right faces a printing substrate. Ceramic / ceramic, ceramic / metal, metal / metal and other gradient functional materials are prepared through array multi-nozzle coaxial powder feeding and binder spraying by adopting a binder spraying-powder conveying method.

The invention provides a high-heat-conductivity ceramic / metal connector and a preparation method thereof, and relates to the technical field of welding, in the preparation method of the high-heat-conductivity ceramic / metal connector, a foam silver middle layer is added between an upper brazing filler metal foil and a lower brazing filler metal foil, and after brazing filler metal is melted at a specific high temperature, foam silver is wetted and filled, so that the high-heat-conductivity ceramic / metal connector is obtained. And meanwhile, welding of base materials (to-be-welded ceramic and a metal base material) on the two sides is achieved, and after a welding joint is solidified and formed, the foam silver serves as a high-heat-conduction channel in a welding seam, so that the heat conductivity of the welding seam is improved, and a ceramic / metal joint (DBC or DBA) with the high heat conductivity is obtained. In conclusion, by means of the method, the DBC or DBA with the high heat conductivity can be obtained, the welding interface combination is tight, the structure distribution in the welding seam is uniform, and no obvious defect exists.

The invention provides a surface metallization method of a low-dielectric porous silicon nitride ceramic material, and belongs to the field of ceramic metallization. The method comprises the steps of porous silicon nitride ceramic material preparation, hole sealing treatment and metallization. The hole sealing treatment comprises the following steps: heating aluminum sol to 36-40 DEG C, then spraying the aluminum sol on the surface of the porous silicon nitride ceramic material, drying, and preserving heat at 556-565 DEG C for 1.2-1.4 hours to obtain hole-sealed silicon nitride ceramic; by adopting the method disclosed by the invention, a firm and uniform metallization layer can be formed on the surface of the porous silicon nitride ceramic, and the high-temperature resistance is good.

The utility model discloses a microwave foaming forming die which is made of materials capable of conducting microwave energy, a through hole for microwaves to penetrate through is formed in the die, a die cavity for containing materials to be foamed is arranged in the die, and the through hole is communicated with the die cavity. When the microwave foaming mold is used, a material to be foamed is placed in the mold, a microwave is applied to the mold, and the microwave penetrates through the through hole to act on the material to be foamed, so that the material to be foamed is foamed or preset lines are formed. The through hole is formed in the mold, the microwave can penetrate through the through hole, and the microwave foaming mold is made of materials capable of conducting microwave energy, such as ceramics, metal and the like; and microwaves can be uniformly conducted through the mold, so that the whole foaming material is uniformly heated, the foaming uniformity and stability are ensured, the production efficiency and the product quality are improved, and the problem that the traditional microwave heating uniformity is poor is solved.

The invention provides a layered adjustable metal-based composite material and a preparation method, and belongs to the technical field of configurable metal-based composites.The metal-based composite material comprises ceramic metal mixing layers and metal layers which are alternately arranged, the single-layer thickness of the ceramic metal mixing layers is 100-1000 microns, and the single-layer thickness of the metal layers is 100-1000 microns; the ceramic-metal mixed layer is formed by mixing ceramic-based negative thermal expansion powder and first metal powder, the volume ratio of the ceramic-based negative thermal expansion powder in the ceramic-metal mixed layer is 20%-70%, and the metal layer is made of second metal powder. According to the ceramic-based negative thermal expansion powder, the ceramic-based metal mixing layers and the metal layers are alternately stacked, the ceramic-based negative thermal expansion powder has a wide negative thermal expansion temperature zone, the application range of the prepared product is widened, the prepared product is higher in density and few in interface reaction, and the heat conduction capacity of the prepared product is further improved.

The invention provides an atomizer, an electronic atomization device and a preparation method of an imitation ceramic metal part. The atomizer comprises an imitated ceramic metal piece, and the imitated ceramic metal piece comprises a metal base material and a functional layer formed on the surface of the metal base material. The production cost of the imitated ceramic metal piece of the atomizer is low.

The invention relates to a method for manufacturing the surface of a timepiece component, in particular an external timepiece component, characterized in that it comprises the following steps: obtaining a timepiece component blank forming the core of the timepiece component; -depositing on said core a surface coating made of a ceramic-metal composite to form a hard surface of the timepiece component, said hard surface having a hardness greater than or equal to 500 HV, or even greater than or equal to 600 HV, or even greater than or equal to 750 HV, or even greater than or equal to 900 HV.

The utility model discloses a ceramic metallization tensile strength detection device which comprises a workbench, a power box is fixedly arranged at one end of the top surface of the workbench, a fixed plate is fixedly connected with one end, far away from the power box, of the top surface of the workbench, and a movable plate is arranged between the power box and the fixed plate on the top surface of the workbench in a sliding mode. Clamp heads are fixedly connected to the opposite side faces of the fixed plate and the movable plate, wedge-shaped grooves are formed in the opposite side faces of the two clamp heads respectively, wedge-shaped clamping blocks are arranged on the inclined side walls in the wedge-shaped grooves in a relatively sliding mode, and the clamping faces of the two clamping blocks are arranged in parallel. According to the tensile strength detection device for ceramic metallization, the clamping surfaces of the clamping blocks are kept parallel in the moving process, so that the clamping surfaces are in uniform contact with the surface of a ceramic substrate, stress concentration cannot be generated, the ceramic substrate can be firmly clamped, falling off during tensile strength detection can be prevented, and meanwhile, stripping or falling off of a metal layer can be prevented.

The invention relates to the technical field of material sintering equipment, and discloses an intelligent temperature and pressure control sintering furnace with vacuum and positive pressure sintering functions, which comprises a shell, a control mechanism is arranged outside the shell and is used for controlling the whole device in real time, and a vacuumizing mechanism is arranged on one side in the shell and is used for vacuumizing the shell. The vacuumizing mechanism further comprises an upper heating assembly, a lower heating assembly, a pressing and sealing assembly and a pressure weighing assembly, the upper heating assembly is used for upper heating treatment, the lower heating assembly is used for lower heating treatment, the pressing and sealing assembly is used for pressing and sealing treatment, and the pressure weighing assembly is used for conducting weighing detection on pressure. A pressure detection mechanism is arranged on the other side in the machine shell. Through the collaborative design of the composite vacuum system and the pressure control module and through the sintering process requirements of covering multiple types of materials such as precision ceramics and metal composite materials, the process compatibility and stability are remarkably improved.

The invention belongs to the technical field of grinding materials and grinding tools, and particularly relates to a ceramic-metal composite grinding block for coarse grinding of microcrystalline glass. The ceramic-metal composite grinding block for coarse grinding of the microcrystalline glass comprises a base body, ceramic diamond segment rows and metal diamond segment rows are alternately arranged in the length direction of the base body, and the grinding area ratio of all ceramic diamond segments to all metal diamond segments is (1-2.5): 1. The ceramic diamond segment is prepared from a ceramic bond, diamond, a pore forming agent, green silicon carbide powder and a wetting agent, and the metal diamond block is prepared from metal powder, graphite powder and diamond. The advantages of the two segments are utilized, the arrangement mode of the two segments, the grinding area proportion and the formula composition of the two segments are regulated and controlled, the combined action enables the composite grinding block to have the service life and the sharpness, the grinding surface of the microcrystalline glass is free of scratches, and the process requirements of the microcrystalline glass can be efficiently met with low cost.

The present invention discloses a glass ceramic metallization UV vacuum plating coating and a preparation process thereof, and relates to the technical field of coatings, the glass ceramic metallization UV vacuum plating coating comprises the following components by mass: 5-20 parts of a 2-functional special modified epoxy acrylate resin, 5-10 parts of a 2-functional aliphatic polyurethane acrylate resin, 2-5 parts of a 6-functional aliphatic polyurethane acrylate resin, 5-15 parts of a polyester acrylic resin, 5-10 parts of an acrylic resin, and the balance of a solvent. The coating is prepared from the following components in parts by weight: 10 to 13 parts of trifunctional acrylate monomer, 2 to 5 parts of monofunctional acrylate monomer, 1 to 3 parts of phosphate, 2 to 5 parts of 1-hydroxycyclohexyl phenyl ketone, 0.5 to 2 parts of benzoin dimethyl ether, 0.1 to 0.3 part of flatting agent, 20 to 30 parts of ethyl acetate, 10 to 20 parts of butyl acetate and 5 to 10 parts of propylene glycol methyl ether acetate. The epoxy acrylate oligomer, the aliphatic polyurethane acrylate and the polyester acrylate which are high in performance and mature in process are mainly selected as main film forming substances and are good in miscibility, a cured paint film is high in compactness and good in developability, and a trifunctional acrylate monomer is matched and is high in reactivity, so that the film forming effect is good. The high crosslinking density ensures that a paint film has enough brightness and fullness so as to ensure the physical and chemical properties of a product, and meanwhile, the constructability such as a leveling effect is improved.

The application relates to a method for preparing a porous structure Al2O3 / Al ceramic metal coating on the surface of an aluminum-based composite material, and belongs to the technical field of surface treatment of aluminum-based composite materials. The application aims to solve the problems of the prior art, such as complicated preparation of ceramic-metal composite materials, uncontrollability, high cost, difficulty in balancing the strength and toughness of the composite material, and insufficient regulation of the thermal conductivity. The method comprises the following steps: I, pretreating the surface of the aluminum-based composite material; II, preparing a porous micro-arc oxidation coating; and III, preparing an Al2O3 / Al ceramic coating with a complete structure. The multilayer structure composite material prepared by the application has more excellent mechanical properties (high resistance to friction and wear, high thermal shock resistance, adjustable thermal expansion coefficient, high fracture toughness) and high thermal conductivity (>=100 W / mK), and has important significance for the upgrading of future packaging substrate materials and the development of composite materials for harsh deep-sea, deep-space and deep-earth environments.