75 results about "Electrophoretic deposition" patented technology

The invention belongs to the technical field of high-voltage electric appliance material preparation, and particularly relates to a zinc oxide resistor disc and a preparation method and application thereof. The preparation method comprises the following steps: (1) pre-sintering zinc oxide powder; (2) mixing the zinc oxide powder obtained in the step (1), an auxiliary agent and a dispersion liquid, and carrying out ball milling to obtain slurry; the particle size D50 of the slurry is 0.8-1.2 [mu] m, and the dispersity is greater than or equal to 95%; (3) performing spray drying and granulation on the slurry to obtain granulation powder; (4) carrying out molding and first sintering on the granulated powder to obtain a resistor disc semi-finished product; the first sintering adopts sectional sintering; and (5) forming an electrode layer on at least one surface of the resistor disc semi-finished product by adopting a vacuum sputtering and / or electrophoretic deposition process, and performing secondary sintering and annealing. The contact resistance of the zinc oxide resistor disc is less than or equal to 5m omega; and after 1000 hours of aging in a 85 DEG C + 85% RH environment, the leakage current increase is less than or equal to 2 [mu] A, and the performance degradation rate is less than or equal to 5%.

The invention belongs to the technical field of coatings, and discloses a corrosion-resistant high-impact-resistant electrophoretic coating and a preparation method thereof. The coating comprises a cationic water-based resin emulsion, flaky nano clay with epoxy groups grafted on the surface, a curing agent, a cosolvent and a functional additive, the core of the method is that through electric field driving in the electrophoretic deposition process, resin micelles and modified nano clay form a bionic micro-nano laminated structure in which hard inorganic sheet layers and flexible organic layers are alternately arranged on the surface of a cathode in situ, and interface bonding between the sheet layers is enhanced through chemical bonding. The bionic micro-nano laminated structure with clear periodicity and a chemical bonding interface is constructed through an in-situ co-deposition technology driven by an electric field, and the contradictions that hardness and toughness cannot be achieved at the same time and impact resistance and corrosion resistance are difficult to cooperate in the prior art are solved; the method is suitable for the high-end industrial fields such as automobile bodies, high-speed rail bogies, offshore wind power towers and the like with strict requirements on comprehensive protection performance.

The invention belongs to the technical field of zinc ion batteries, and particularly relates to a zinc metal negative electrode and a zinc ion battery. The zinc metal negative electrode comprises a zinc metal substrate and a coating covering the surface of the zinc metal substrate, the coating comprises a conductive metal oxide; the coating is formed on the zinc metal substrate in a manner independent of an organic polymer binder. According to the scheme, the use of an insulating organic polymer adhesive is avoided, so that the conductivity of the coating is improved, and the structural controllability of the coating is improved. The high-conductivity indium tin oxide (ITO) nanorod is prepared through cooperation of microwave solvothermal synthesis and high-temperature calcination, and a protective layer which is free of a binder and controllable in structure is constructed on the surface of the zinc foil through the electrophoretic deposition technology.

The invention belongs to the technical field of battery materials, and provides a copper net-carbon nanotube-silicon carbon negative electrode plate and a preparation method thereof. The preparation method comprises the following steps: putting a copper mesh and a carbon nanotube into an electrophoretic liquid, and carrying out electrophoretic deposition to obtain a porous copper-carbon nanotube composite precursor; under shielding gas, silane gas is introduced into the porous copper-carbon nanotube composite precursor, vapor deposition is carried out, and a silicon-carbon deposition precursor is obtained; and introducing a carbon source into the silicon-carbon deposition precursor under protective gas, and carrying out carbon coating. The porous interconnection structure of the copper mesh-carbon nanotube composite skeleton is utilized to provide mechanical support and a conductive path, stress is absorbed through pores to avoid stripping of the active layer, and the cycle service life is prolonged; the macroscopic supporting effect of the copper net framework is cooperated with the nanoscale flexible connection of the carbon nanotubes, so that the pulverization of the active silicon particles is inhibited; the copper net provides a longitudinal conductive trunk, and the carbon nanotubes construct transverse conductive branches to form a three-dimensional electron transmission path, so that the charge transfer impedance is reduced.

A method of making a converter layer includes performing electrophoresis to deposit converter material particles in a suspension composition onto a thin, non-conductive substrate to make a first intermediate structure; and fixing the converter material particles with a binder material and / or an inorganic coating in order to produce the converter layer. A converter assembly for a light emitting diode (LED), comprising: a converter layer comprising: electrophoretically deposited converter particles in combination with one or more of: a binder material; an inorganic coating of converter particles, and an inorganic coating of binder material when present; and a filler material.

The invention provides a carbon nanotube cold cathode, a preparation method thereof and an X-ray tube, and the preparation method of the carbon nanotube cold cathode comprises the following steps: carrying out ball milling on an agglomerated carbon nanotube to obtain carbon nanotube powder; mixing the carbon nanotube powder with a first solvent and an electrolyte solution, and performing ultrasonic oscillation to obtain a suspension; a metal substrate is placed in the suspension liquid for electrophoretic deposition, and the carbon nano tube thin film cold cathode is obtained; coating a curing agent on the carbon nano tube thin film cold cathode for cross-linking curing to obtain a cured carbon nano tube cold cathode; and enabling the carbon nano tube in the carbon nano tube cold cathode in the curing state to form a tip by utilizing a high-energy ion beam, and enabling the carbon nano tube to form an upright state by utilizing a high-strength electric field to obtain the carbon nano tube cold cathode in an activated state.

The invention relates to a magnesium alloy micro-arc oxidation-electrophoretic deposition composite film layer which comprises a magnesium alloy substrate, a micro-arc oxidation middle layer and an electrophoretic deposition layer. The magnesium alloy micro-arc oxidation-electrophoretic deposition composite film layer finally prepared by adjusting the parameters of micro-arc oxidation, electrophoretic deposition and sintering has super-hydrophobicity and excellent corrosion shielding performance, can be applied to the field of ships, and prolongs the service life of a ship body.

An enclosure for an electronic device includes an aluminum alloy substrate and an anodic oxide coating disposed on the aluminum alloy substrate, the anodic oxide coating having a nano-scale etched pattern. The enclosure includes a matte-white finish having a flop index between about 2 and about 10. The anodic oxide coating has a L* value of greater than about 90, an a* value of less than about 1, and a b* value of less than about 2. The enclosure includes a sealant disposed on the anodic oxide coating, the sealant including a sol-gel coating, a hard-coat, an anodic electrophoretic deposition coating, or a combination thereof.

The application relates to the technical field of magnets, in particular to a cerium-doped high-coercivity neodymium-iron-boron magnet and a preparation process thereof. In view of the problem that the existing cerium-doped magnet has insufficient coercivity and reduced remanence due to uneven distribution of cerium, the process comprises the following steps: fluorination treatment on the surface of a main phase powder, cold pressure forming in a magnetic field, electrophoretic deposition to build a cerium fluoride skeleton, step-by-step vacuum impregnation of cerium salt and a fluorine source, and degreasing, sintering and grain boundary heat treatment. The method controls the uniform enrichment of cerium at the grain boundary, forms a continuous and dense grain boundary phase, effectively improves the intrinsic coercivity, remanence and high-temperature stability, simultaneously improves the corrosion resistance and reduces the dependence on heavy rare earths.

This application relates to the field of plastic modification technology, and more particularly to a graphene-coated plastic needle-like substrate and its preparation method. The method includes: S1, performing surface pretreatment and conductivity treatment on the plastic needle-like substrate to obtain a conductive substrate; S2, using the conductive substrate as a working electrode, performing electrophoretic deposition in a graphene oxide electrophoresis solution to obtain a graphene oxide-coated intermediate; S3, performing a reduction treatment on the intermediate to obtain the graphene-coated plastic needle-like substrate. The solution provided by this application can achieve uniform, firm, and controllable-thickness graphene coating on the surface of thermoplastic substrates while avoiding thermal damage. Furthermore, the conductivity of the final product can be precisely and bidirectionally controlled within a wide range through process parameters. It also has the advantages of strong process versatility, environmental friendliness, and low cost.

This invention relates to a high thermal conductivity carbon fiber film suitable for spacecraft structures and its preparation method. First, the sizing agent on the surface of pitch-based carbon fibers is removed by heating. The treated carbon fiber bundles are then immersed in an electrolyte containing dispersed GNPs and thermally conductive fillers. Using the carbon fiber bundles as the anode and a copper rod as the cathode, GNPs and thermally conductive fillers are electrophoretically deposited on the carbon fiber surface. Subsequently, the surface-electrophoretically deposited carbon fibers are washed, dried, and radially cut into short carbon fibers. The short carbon fibers are then added to deionized water, along with anionic polyacrylamide (APAM) and polyurethane (PU) composite dispersant, and a surfactant. After ultrasonic dispersion, the mixture is filtered, rinsed, and dried. Finally, the resulting film is hot-pressed to obtain the film material. This invention solves the problem of low out-of-plane thermal conductivity in carbon fiber film materials, producing carbon fiber composite materials with high out-of-plane and in-plane thermal conductivity.

This invention discloses a method for preparing a TiB2 coating that inhibits particle agglomeration during electrophoretic deposition, comprising the following steps: First, a fluoride salt mixture is prepared and divided into two parts. One part of the fluoride salt is mixed with boron powder and titanium dioxide powder, heated to form a molten salt, and the upper layer of molten salt is extracted. After rapid cooling, crushing, and grinding, TiB2-fluoride salt composite powder is obtained. Then, the other part of the fluoride salt is heated to form a base molten salt, and the TiB2-fluoride salt composite powder is added to the base molten salt. Electrophoretic deposition is then performed using a ring-shaped graphite anode and a cathode to be deposited. This method prepares highly dispersed TiB2-fluoride salt composite powder through in-situ synthesis, and then uses a ring-shaped anode to reduce the probability of TiB2 particle agglomeration during electrophoresis, effectively inhibiting particle agglomeration and improving the TiB2 electrophoretic deposition efficiency.

The invention relates to the field of building materials, and particularly discloses high-ductility basalt fiber concrete and a preparation method thereof.The high-ductility basalt fiber concrete comprises a binding material, a fiber mixture, water and an additive, and the fiber mixture comprises polyethylene fibers and modified basalt fibers; the modified basalt fiber is prepared by the following steps: soaking basalt fiber in a calcium solution, dropwise adding carbonate under an alkaline condition, performing in-situ mineralization to generate nano calcium carbonate whiskers, performing electrophoretic deposition in a first suspension, and then performing electrophoretic deposition in a second suspension to obtain the modified basalt fiber, the preparation method of the high-ductility basalt fiber concrete comprises the following steps: mixing the cementing material with the fiber mixture to prepare a primary mixture, mixing the water and the additive, adding the primary mixture, and stirring to prepare the high-ductility basalt fiber concrete. The preparation method has the characteristics that the interface bonding strength of the basalt fiber and the concrete matrix is improved, and the prepared concrete is a high-performance concrete material with better ductility and strength.

The application provides a special plastic aluminum foil composite paper and a preparation method thereof. The composite paper comprises an aluminum foil layer, a special plastic layer and a paper layer. The aluminum foil layer is a base layer, the special plastic layer is made of polyimide, polytetrafluoroethylene, ethylene-tetrafluoroethylene copolymer, ethylene-vinyl alcohol copolymer and nano magnetic particle microcapsules, and is tightly attached to one side of the aluminum foil layer; the paper layer is made of raw paper wood pulp, polyester fiber pulp, ramie fiber pulp, silk fiber pulp, rosin glue, chitin, chitosan, allicin and bee glue, and is combined with the special plastic layer on the other side of the aluminum foil layer. The nano magnetic particle microcapsules are made of magnetic nano particles, capsule core materials, monomers and emulsifiers. The paper layer is formed by mixing two kinds of pulp uniformly and electrophoretic deposition. During preparation, the surface of the aluminum foil layer is pretreated, then the special plastic is prepared, the special plastic layer is coated, the paper layer is coated, and the finished product is obtained through hot pressing, and can be applied to the field of food packaging.

A superamphiphobic coating with durable wear resistance and corrosion resistance for an aluminum alloy surface and a preparation method therefor are provided. A superamphiphobic paint includes, in parts by weight: 10-15 parts of modified SiO2 particles, 10-15 parts of modified TiO2 particles, 5-10 parts of PTFE, and epoxy resin matrix. The preparation method for the superamphiphobic coating includes: pre-mixing raw materials, uniformly depositing components in a pre-mixed solution on the aluminum alloy surface by electrophoresis, followed by baking to obtain the superamphiphobic coating. A superamphiphobic paint is pollution-free during production and use, and the superamphiphobic coating has high cross-linking density, low curing shrinkage rate, high wear resistance, high hardness, superhydrophobicity, and oleophobiccity. Meanwhile, by pre-treating the aluminum alloy surface, a stable and dense coating is formed to isolate oxygen, thereby improving corrosion resistance of a coated surface and providing sustainable and long-term protection for the coated surface.

The application discloses a method for preparing a double-layer structure cladding tube by combining an electrophoretic deposition process with a PIP process and a double-layer structure cladding tube. f The method solves the problems that zirconium alloy as a cladding material alone is high-temperature water explosion, not resistant to radiation, and SiC / SiC composite material as a cladding material alone is difficult to connect and has many pores, and on the other hand, the electrophoretic deposition process is simplified by using a zirconium alloy tube as an electrode, and the preparation cost is reduced.

This invention relates to the field of precious metal special material preparation and processing technology, and discloses a composite special gold wire suitable for high-temperature and high-density packaging and its preparation method. The gold wire contains the following components by weight percentage: 0.5% to 1% Pd, 0.05% to 0.1% Al, 0.005% to 0.015% Ga or Ge, 0.001% to 0.005% La, Ce, Yb or Sm, with the balance being pure gold. The gold wire is coated with a layer of thermosetting resin by impregnation and baking, and an inorganic phase layer mainly composed of silicon dioxide is coated on the thermosetting resin by electrophoretic deposition. This invention achieves a strong bond between the silicon dioxide inorganic phase layer and the gold wire by coating the gold wire with a thermosetting resin layer, making it less prone to detachment. Furthermore, by optimizing the core material composition, the resulting composite special gold wire exhibits superior long-term reliability when bonded to aluminum pad electronic components under high-temperature and complex service environments compared to conventional gold wires. Moreover, the wire arc maintains excellent rigidity in multi-pin, 3D stacked packaging environments, reducing short-circuit failures caused by physical contact or arc discharge between adjacent gold wires.

The application discloses a kind of nickel-plated modified neodymium-iron-boron permanent magnet materials and preparation method thereof, it is related to permanent magnet material technical field.The nickel-plated modified neodymium-iron-boron permanent magnet material specifically includes the following steps: S1: neodymium-iron-boron permanent magnet material is sequentially polished, polished, washed, dried, magnetron sputtering Al-Ga layer, obtains neodymium-iron-boron permanent magnet material A;S2: neodymium-iron-boron permanent magnet material A is sequentially polished, washed, dried, electrophoretic deposition TbF3 layer, thermal diffusion treatment, obtains neodymium-iron-boron permanent magnet material B;S3: neodymium-iron-boron permanent magnet material B surface electroplating NI-Co-Tb layer, obtains nickel-plated modified neodymium-iron-boron permanent magnet material.The preparation method provided by the application significantly improves the magnetic properties and corrosion resistance of permanent magnet material.

The invention discloses an electrophoretic glass passivation method for improving the electrical property of a semiconductor device and the semiconductor device, and relates to the technical field of semiconductor devices.The method comprises the steps that a semiconductor chip to be passivated is obtained, electrophoretic glass liquid is prepared, the semiconductor chip is placed in the electrophoretic glass liquid, electrophoretic deposition conditions are applied, and the semiconductor chip is passivated; depositing the glass powder on the surface of the semiconductor chip to form a glass wet film; carrying out sintering annealing treatment on the glass wet film, introducing a mixed atmosphere of oxygen and nitrogen into a sintering furnace in the sintering annealing treatment, and carrying out heating, heat preservation and cooling according to a preset multi-stage temperature curve so as to melt and densify the glass wet film and form a glass passivation layer; and obtaining the semiconductor device on which the glass passivation layer is formed. Through the technical scheme of the invention, the risks of glass cavities, cracks and stripping are reduced, the surface insulation and voltage endurance capability of the device is improved, the electric leakage and failure rate are reduced, and the electrical consistency and long-term reliability are improved.

The invention relates to the technical field of photovoltaics, in particular to a solar cell and a preparation method thereof and a photovoltaic module, the preparation method comprises the following steps: printing a 3-aminopropyltrimethoxysilane solution to a grid line area of a transparent conductive layer of a cell substrate, and performing first thermocuring to form an aminosilane activated self-assembly layer in the grid line area; performing electrophoretic deposition on the amino silane activated self-assembled layer by using an electrophoretic liquid, and performing second thermal curing to form a transition layer which is a poly (3, 4-ethylenedioxythiophene)-poly (styrenesulfonic acid) transition layer; and electroplating on the transition layer to form a copper grid line. The solar cell prepared by the preparation method can be used for a photovoltaic module, and the solar cell can improve the adhesive force of the copper grid line, reduce the interface contact resistance and further reduce the production cost.

The invention provides a machining method and system for a high-corrosion-resistance extinction electrophoresis aluminum profile. The machining method comprises the steps that an aluminum alloy base material is subjected to anodic oxidation, and a to-be-treated workpiece with a porous oxidation film is prepared; collecting a workpiece surface transient response potential at high frequency in a preset monitoring time period at the initial stage of electrification, and synchronously obtaining a bath solution system reference equilibrium potential; calculating the numerical deviation degree of the transient response potential and the reference equilibrium potential, and processing to obtain a characteristic difference index representing the pore impedance distribution of the oxide film; converting the characteristic difference index into a voltage compensation factor, multiplying a basic set voltage by the factor to obtain an execution voltage, and performing electrophoretic deposition on the workpiece under the execution voltage; correcting preset curing process parameters, generating a target curing curve containing segmented variable temperature rate and constant temperature duration, and matching the target curing curve with a film layer thermal cross-linking reaction window; and after electrophoresis, cleaning and draining the workpiece, and carrying out thermal cross-linking curing according to a target curing curve to prepare the high-corrosion-resistance extinction electrophoresis aluminum profile.

The application discloses a kind of multilayer hetero-encapsulated tube based on MAX phase interface and preparation method thereof, belong to nuclear fuel cladding material technical field.The cladding tube sequentially includes from inside to outside: refractory metal lining pipe, first transition layer, second transition layer and SiC / SiC composite material outer layer.The first transition layer is the composite material layer with Ti3SiC2MAX phase as matrix and SiC nanoparticles and SiC whisker as reinforcing phase;The second transition layer is SiC nanowire layer.Preparation method includes: first transition layer is formed by pulling method outside refractory metal pipe, second transition layer is formed by electrophoretic deposition method, then SiC fiber preform is woven and deposited pyrolytic carbon interface, then vacuum impregnation is carried out in SiC whisker-containing polycarbosilane solution, finally, SiC matrix is deposited by chemical vapor infiltration.The application realizes excellent thermal-mechanical performance matching between heterogeneous materials by designing two layers of transition interface with function synergy, while ensuring the high gas tightness of cladding tube.

The invention belongs to the technical field of fiber sizing treatment, and discloses a graphene fiber sizing method which comprises the following steps: pre-infiltrating graphene fibers by using a carbonic ester solvent, immersing the graphene fibers into an electrophoresis solution, and drying to obtain the graphene fibers. A layer of uniform, compact and firmly combined polyether type polyurethane coating is deposited on the surface and the interior of the graphene fiber through electrophoretic deposition. The graphene fiber is sized by adopting a pre-infiltration and electrophoretic deposition technology, so that a sizing agent can uniformly permeate to avoid a local dry area or a weak interface caused by insufficient infiltration, the stress transfer uniformity of the final graphene fiber is ensured, and a uniform coating is formed on the surface of the graphene fiber.

The application discloses a carbon fiber surface modification method and modified carbon fiber. The carbon fiber surface modification method comprises the following steps: performing desizing treatment on carbon fiber, and then placing the carbon fiber in an aramid nanofiber electrophoresis solution with a concentration of 0.005wt%-0.1wt% to perform electrophoretic deposition, so as to preliminarily modify the carbon fiber; drying the preliminarily modified carbon fiber, and then immersing the carbon fiber in an MXene dispersion liquid to perform secondary modification, wherein the concentration of the MXene dispersion liquid is 0.05wt%-0.5wt%; and drying the secondarily modified carbon fiber, so that the surface modified carbon fiber is obtained. The aramid nanofiber and the MXene are used to cooperatively treat the carbon fiber, so that the interfacial bonding performance between the carbon fiber and resin can be effectively improved, the interlaminar shear strength of the composite material is improved, and the overall mechanical performance of the composite material is further improved.

The application belongs to the technical field of zinc ion batteries, and particularly relates to a zinc metal negative electrode and a zinc ion battery. The zinc metal negative electrode comprises a zinc metal substrate and a coating layer covering the surface of the zinc metal substrate; the coating layer comprises a conductive metal oxide; and the coating layer is formed on the zinc metal substrate in a manner independent of an organic polymer binder. This scheme avoids the use of an insulating organic polymer binder, thereby helping to improve the conductivity of the coating layer and improve the controllability of the structure. Furthermore, high-conductivity indium tin oxide (ITO) nanorods are prepared through microwave solvent synthesis and high-temperature calcination in cooperation, and an adhesive-free and structure-controllable protective layer is constructed on the surface of a zinc foil by using electrophoretic deposition technology.

The invention provides a negative pole piece, a secondary battery and a device, the negative pole piece comprises a current collector, a negative active material layer and an inorganic coating, the surface of the negative current collector is provided with the negative active material layer and the inorganic coating, and the thickness of the inorganic coating is 1-200 nm along the thickness direction of the negative pole piece. The inorganic coating is deposited on the surface of the negative pole piece through atomic layer deposition, chemical vapor deposition or electrophoretic deposition, the thickness and the mass ratio of the inorganic coating are controlled to be within a certain range, the wettability of an electrolyte can be improved, the charging DCR of the battery is reduced, the cycle life and the high-temperature storage life are prolonged, and the safety performance of the battery can also be improved.

This application provides a thin-film optoelectronic device, relating to the field of semiconductor technology. The thin-film optoelectronic device includes: a substrate, an electrode layer, a carrier layer, and a photoelectric conversion layer. The carrier layer is used for the transport of electrons and holes; the photoelectric conversion layer is used for the conversion of light energy into electrical energy based on the transport of electrons and holes. The electrode layer, carrier layer, and photoelectric conversion layer are deposited on the substrate to form a multilayered thin-film stack structure. By utilizing only electrophoretic deposition to prepare multiple functional coatings such as the electrode layer, carrier layer, and photoelectric conversion layer, the full-structure layer fabrication of thin-film optoelectronic devices such as LEDs, thin-film lasers, photovoltaic cells, and photodetectors can be achieved. The process is simple, reduces fabrication costs, shortens the fabrication cycle, and provides stable product quality. The method is flexible and can be used for large-area fabrication.

The application discloses an ionic compound film and a preparation method and application thereof. 4,4'-dipyridine is used as a molecular main body, different halogenated hydrocarbons are used as reaction raw materials, methyl, ethyl or benzyl groups are respectively introduced at the ends of molecules, and sodium tetrafluoroborate or ammonium tetrafluoroborate is used as a reactant to perform an anion exchange reaction on the ionic compound, so that ionic compounds with different structures are obtained. Then, the ionic compound is dissolved in a solvent, and an electrophoretic deposition is used to form a film on the surface of a conductive substrate. Finally, the three ionic compounds are prepared into a memory device with a sandwich structure, and the application of the ionic compound film as multi-radix information storage is provided. By simply adjusting the steric hindrance of the end groups, different information storage performances can be realized, which is simpler and faster than a complex and tedious structure design idea.

The invention relates to the field of advanced non-ferrous metal material high-heat-insulation coating protection, in particular to a composite oxide ceramic coating preparation method based on an electrophoretic deposition technology. Firstly, the heat-resistant steel surface is pretreated, and surface oil stains and oxidation impurities are removed; then a nickel-based electroplating solution containing rhenium chloride and ruthenium chloride is prepared, the pretreated heat-resistant steel part is placed in the nickel-based electroplating solution to be subjected to electro-deposition, and a nickel-rhenium-ruthenium composite metal bonding layer is formed on the surface of the nickel-based electroplating solution; then preparing a composite ceramic suspension, taking acetonitrile as a solvent, taking 3, 3-dimethoxypropionic acid as an additive, containing YSZ powder and nano ruthenium dioxide-rhenium oxide mixed powder, and putting the part with the metal bonding layer into the suspension for electrophoretic deposition to form a composite oxide ceramic coating precursor; and then the ceramic coating is placed in a high-temperature furnace protected by inert gas to be sintered, interface fusion of the bonding layer and the ceramic coating and densification of the ceramic coating are achieved, and the ceramic coating has excellent heat insulation performance and strong interface bonding force.