405 results about "Oxide coating" patented technology

The invention discloses a magnesium oxide coating performance detection system and method based on curing degree analysis, and relates to the technical field of coating performance detection.According to the magnesium oxide coating performance detection system and method, the coating effect of a magnesium oxide coating is analyzed based on the curing degree and contact adaptability, and the influence of airflow on the uniformity of the magnesium oxide coating is predicted based on airflow and silicon steel moving tracks; the curing effect of the magnesium oxide coating in the moving scene is predicted based on the influence of the environment on the curing of the magnesium oxide coating and the influence of airflow on the uniformity of the magnesium oxide coating, and the comprehensive curing condition of the magnesium oxide coating is predicted based on the coating effect of the magnesium oxide coating and the curing effect of the magnesium oxide coating in the moving scene. According to the magnesium oxide coating performance detection method, under the moving scene, the curing effect of the coating is predicted through the movement track model and airflow simulation, meanwhile, the curing condition is comprehensively analyzed in combination with the coating effect, and the precision of magnesium oxide coating performance detection is improved.

The invention discloses a component gradient iridium tantalum coating anode and a preparation method thereof, the component gradient iridium tantalum coating anode comprises a titanium-based bottom layer, a middle layer and a surface active layer structure with component gradient, and the middle layer and the active layer are both prepared through a thermal decomposition method. And the intermediate layer is prepared on the titanium substrate and is composed of TiO2 / Ta2O5 mixed oxide. The surface active layer is prepared on the outer side of the middle layer and comprises a plurality of layers of IrO2 / Ta2O5 oxide coatings with different iridium-tantalum proportions. Compared with a traditional uniform coating anode, the prepared component gradient iridium tantalum coating anode can relieve the stress concentration phenomenon and reduce coating cracking, the service life of the anode is remarkably prolonged, and the catalytic activity of the anode is remarkably improved; the modified carbon nano tube is added into the active layer precursor solution, so that the conductivity change caused by component gradient is improved, and the cell voltage of the component gradient iridium tantalum coating anode is effectively reduced; and moreover, the iridium content is lower, and the preparation cost of the electrode is reduced.

The invention relates to an automatic magnesium oxide coating analysis system and method, and belongs to the technical field of coating quality analysis. The method comprises the following steps: acquiring attributes of a magnesium oxide coating, an infrared spectrum and environment temperature and humidity data, and constructing a multi-source feature set; analyzing the distribution dispersion and local enrichment risk of free water based on a dynamic migration model, and analyzing the bonding weakening degree and dissociation risk of bound water based on a chemical stable state model; respectively generating free water treatment process parameters for inhibiting structural damage and combined water treatment process parameters for preventing performance degradation according to the abnormal analysis result and the coating attribute; by performing coupling influence analysis on the two types of process parameters, the balance requirements of the structural integrity and chemical stability of the coating are coordinated, an optimized process scheme is generated, and cooperative regulation is realized. According to the method, accurate identification, independent analysis and cooperative control of the free water and the bound water are realized, and the accuracy, reliability and quality consistency of coating water treatment are improved.

A component for use in a semiconductor processing chamber is provided. A metal or metal alloy component body has a process-facing surface. An intermediate aluminum oxide coating is disposed on the process-facing surface, the intermediate aluminum oxide coating being at least 99% pure by weight and having a porosity of less than 0.1% by volume, the intermediate aluminum oxide coating having a first thickness. A process-exposed layer is disposed on the intermediate aluminum oxide coating, the process-exposed layer comprising at least one of yttrium, hafnium, zirconium, lanthanum, magnesium, and a lanthanide, the process-exposed layer being at least 99% pure by weight, having a porosity of less than 0.1%, and having a second thickness, the second thickness being less than or equal to the first thickness.

The invention discloses a negative electrode active material and a preparation method thereof, a negative electrode pole piece and a secondary battery, the negative electrode active material provided by the invention comprises a silicon-carbon composite material and an aluminum oxide layer coated on the surface of the silicon-carbon composite material, and the silicon-carbon composite material is a composite material of nitrogen-fluorine co-doped porous carbon and nano silicon particles. By optimizing and regulating the porosity and pore size distribution of the porous carbon, the ion transmission kinetics and the structural stability are improved, and the problems of poor rate capability, short cycle life and the like caused by single pore size of the traditional porous carbon are solved. By adopting the nitrogen and fluorine co-doped porous carbon skeleton, the conductivity of the electrode material is enhanced, and the cycling stability of the battery is improved. The nano silicon component uniformly deposited through a chemical vapor phase method provides high specific capacity, the aluminum oxide coating layer can effectively inhibit the decomposition reaction of the solid electrolyte, and the long-term stability and cycle performance of the electrode structure are jointly guaranteed through the dual effects.

The present application provides a positive electrode material, and a preparation method therefor and the use thereof. The positive electrode material of the present application comprises a substrate and an island-shaped coating layer provided on the surface of the substrate, wherein the substrate is a lithium-ion layered oxide having an O2 stacking structure; and the coating layer is selected from one or more of the oxides of the element M, the element M being selected from one or more of Al, Mg, Ti, Y, Zr, La, Ce, Pr, Si, Sn, Cu, W, Sm, Gd, In, Zn, and Fe. In the positive electrode material of the present application, by coating the surface of the lithium-ion layered oxide substrate having an O2 stacking structure with the specific island-shaped oxide coating layer, the positive electrode material is made to have relatively high specific capacity, structural stability and positive electrode interface stability at high voltages, thereby obtaining good cycling performance.

The invention discloses a preparation method of ODS alloy composite powder for laser additive manufacturing. The invention belongs to the technical field of metal additive manufacturing materials, and particularly relates to a preparation method of oxide dispersion strengthening (ODS) alloy composite powder for laser additive manufacturing. The metal matrix powder is divided into two particle size intervals by taking 30 [mu] m as a particle size critical point, the metal matrix powder in the two particle size intervals is mixed with the nano oxide powder through differential acoustic resonance to form two kinds of composite powder, and the ODS alloy composite powder is obtained by mixing the two kinds of composite powder. According to the method, different high-energy acoustic resonance mixing time is adopted for coating characteristic differences caused by different masses of metal powder (smaller than or equal to 30 microns and gt; 30 microns) in different particle size intervals. And finally, the thicknesses of nano oxide coating layers of all the powder are accurately controlled to be 500 nm or below, and the risks of nano oxide agglomeration and large-size slag formation in the SLM process are remarkably reduced.

The invention provides a high-performance nitrogen vacancy color center diamond material under yttrium oxide protection and a preparation method and application thereof, and belongs to the technical field of quantum materials. The preparation method comprises the following steps: firstly carrying out electron irradiation and cleaning on a diamond substrate, then processing by adopting nitrogen plasma, then depositing an yttrium oxide coating, and annealing the diamond substrate deposited with the yttrium oxide coating under a vacuum condition to obtain the high-performance nitrogen vacancy color center diamond material. According to the method, the diamond is treated through the nitrogen plasma, so that the displacement nitrogen concentration in the diamond can be increased, and the NV-color center concentration can be increased in the subsequent annealing treatment process; meanwhile, the yttrium oxide coating is deposited on the diamond substrate, so that defects on the surface of the diamond can be reduced, the NV-color center concentration is increased, and the prepared diamond material has excellent corrosion resistance. The diamond material prepared by the preparation method can be used for preparing quantum sensors used under extreme conditions.

An article has a body having a protective coating. The protective coating is a thin film that includes a metal oxy-fluoride. The metal oxy-fluoride has an empirical formula of MxOyFz, where M is a metal, y has a value of 0.1 to 1.9 times a value of x and z has a value of 0.1 to 3.9 times the value of x. The protective coating has a thickness of 1 to 30 microns and a porosity of less than 0.1%.

The invention provides a positive electrode material and a preparation method and application thereof.The positive electrode material comprises a base body and an island-shaped coating layer arranged on the surface of the base body, and the base body is a lithium ion layered oxide with an O2 phase stacking structure; the coating layer is selected from one or more of oxides of an element M, and the element M is selected from one or more of Al, Mg, Ti, Y, Zr, La, Ce, Pr, Si, Sn, Cu, W, Sm, Gd, In, Zn and Fe. According to the positive electrode material disclosed by the invention, the surface of the lithium ion layered oxide matrix with the O2 phase accumulation structure is coated with the specific island-shaped oxide coating layer, so that the positive electrode material has relatively high specific capacity, structural stability and positive electrode interface stability under high voltage, and further good cycle performance is obtained.

A wiring circuit board includes a metal supporting layer, a first metal thin film, an insulating layer including a through hole, a second metal thin film disposed on the first metal thin film in the through hole, and a conductive pattern electrically connected to the metal supporting layer through the first metal thin film and the second metal thin film in the through hole. The first metal thin film includes an oxide coating at least on a contact surface in contact with the insulating layer. In the central part of the through hole, the oxide coating has a thickness of 0 or a thickness smaller than a thickness of the oxide coating on the contact surface.

The invention discloses a high-corrosion-resistance yttrium oxide coating for semiconductor equipment and a preparation method of the high-corrosion-resistance yttrium oxide coating, and belongs to the technical field of coatings. According to the high-corrosion-resistance yttrium oxide coating for the semiconductor equipment and the preparation method of the high-corrosion-resistance yttrium oxide coating, a SiC transition layer is formed on the surface of a carbon-containing matrix; and an yttrium oxide ceramic coating is deposited on the SiC transition layer in an SPPS plasma spraying mode. The SiC transition layer is firstly formed on the carbon-containing substrate, then the Y2O3 coating is deposited through solution precursor plasma spraying, and a structure with both interface stability and surface protection is formed. SiC is thermally compatible with a substrate, so that undercut, warping and stripping can be inhibited; the dense Y2O3 layer can form a non-volatile protective phase in fluorine-containing / chlorine-containing plasma, thereby reducing the material removal rate and reducing particle release.

The invention belongs to the technical field of metal soft magnetic materials, and particularly relates to a metal soft magnetic material coated with polyfunctional group polysiloxane in situ and a preparation method and application of the metal soft magnetic material. According to the method, through surface modification and in-situ polysiloxane coating, uniform coating is achieved on the surface of the metal soft magnetic material, an oxide layer is protected, the insulativity is enhanced, and meanwhile multiple adjustable functional groups are introduced. According to the technology, the problem that the adaptability of an oxide coating layer and other components is poor is solved, polysiloxane can form a continuous and compact insulation barrier, the resistivity is improved, the eddy-current loss is reduced, the flexibility of polysiloxane buffers stress, processing damage is avoided, water, oxygen and corrosive media are effectively blocked, and the service life of the material is prolonged.

The invention relates to the technical field of on-line control, in particular to a magnesium oxide production regulation and control system and method based on big data analysis, and the method specifically comprises the steps: obtaining three-dimensional shape data and element composition distribution data of a microcell on the surface of a substrate; based on the curvature continuity index, separating out a high-activity grain boundary region and generating a first active grain boundary distribution diagram; obtaining an optimized second active grain boundary distribution diagram according to the silicon activity influence factors; and calculating the reaction adaptation degree of the magnesium oxide coating on the silicon steel substrate, and determining a hydration degree control target and a particle size distribution control target of magnesium oxide raw material production. According to the method, the problem that in the prior art, the insulating property of the produced magnesium oxide coating is not stable due to the difference of surface characteristics, such as grain boundary activity, element distribution and three-dimensional morphology, of different production batches of silicon steel substrates is solved.

The invention discloses a preparation method of a nickel-based reverse catalyst with an oxide layer coating structure and photo-thermal methanation application, the catalyst takes metal Ni for dissociating hydrogen as a carrier, a low-dimensional nano metal M oxide coating structure is loaded on the surface of the carrier to construct an M / Ni reverse catalyst, the metal M is one or two of Ce, Zr, Al, Ti, Zn and Mg, and the metal M is one or two of Ce, Zr, Al, Ti, Zn and Mg. And the molar fraction of the load phase metal M is 5-40% based on 100% of the molar fraction of all metals in the catalyst. Through a simple coprecipitation method, a continuous nickel metal phase with hydrogen dissociation capacity is prepared to serve as a carrier, a low-dimensional nano oxide is loaded to construct a reverse catalyst, an oxide layer coating structure is constructed on the surface of the catalyst, and the oxide layer coating structure and the loaded nano oxide form a heterojunction. The catalyst disclosed by the invention shows excellent photo-thermal catalytic performance under mild illumination of 0.7 W.cm <-2 > without an external heat source, the surface heterostructure of the catalyst enhances the photo-response capability under a low-light-intensity condition, and an efficient photo-thermal synergistic effect is realized.

The invention relates to the technical field of metal oxide coating electrodes, in particular to a carbon nano hybrid material loaded metal oxide coating electrode and a preparation method of the carbon nano hybrid material loaded metal oxide coating electrode. And dissolving metal ions by using the metal ions as a solvent, uniformly coating the metal ions on the surface of titanium or titanium alloy subjected to certain surface treatment, and carrying out heat treatment to obtain a target electrode. The preparation method is simple in process and convenient to operate, the prepared electrode can effectively prevent a corrosion medium from permeating into the coating due to the existence of the nano hybrid material, the service life of the electrode is greatly prolonged, and the electrocatalytic activity of the electrode can be improved by optimizing electron transmission.

The invention relates to the technical field of rare earth permanent magnet material preparation, in particular to a method for preparing a neodymium-iron-boron magnet through ultrasonic-assisted screen printing and gradient temperature control. According to the preparation method, the nano aluminum oxide coating is prepared by adopting an ultrasonic-assisted screen printing technology, and the grain orientation degree and the microstructure uniformity are improved through the synergistic effect of an acoustic streaming effect, a heat effect and mechanical vibration energy generated by ultrasonic waves with the frequency of 20-30 kHz and the power density of 30-60 W / cm < 2 >; according to the invention, an Al-O-Si three-network structure is formed at a pre-sintering stage of 800 DEG C through nano aluminum oxide, so that the heat-resistant shrinkage stress is improved by 3 times; according to the temperature zone gradient temperature control diffusion process, the grain boundary structure is optimized, and the treatment time is shortened by more than 50%. The motor can be widely applied to new energy automobile driving motors and wind driven generators.

The preparation method comprises the following steps: before coating, adding a carbon material into graphene oxide slurry, and uniformly stirring and mixing to obtain mixed slurry; the carbon material and the graphene oxide slurry are compounded according to the mass ratio of (10-25): 500; the carbon material comprises carbon nanotubes, carbon fibers, expanded graphite, homogeneous graphene, graphene oxide coating film leftover materials and graphene heat-conducting film leftover materials which are compounded according to the mass ratio of (1-5): (1-5): (0.5-3): (1-10): (1-20): (1-20). The longitudinal heat conductivity coefficient of the graphene heat conduction film is 9-20 W / m.K. The graphene micro-nano cavity superconducting film is prepared by compounding the GO slurry and various carbon materials and combining foaming and heat treatment processes, and the graphene micro-nano cavity superconducting film has remarkable beneficial effects in the aspect of improving the Z-direction heat conduction coefficient and the comprehensive performance.

The invention relates to the technical field of surface treatment, discloses a dry ice sand blasting-chemical dissolution-ultrasonic collaborative cleaning process for a nano aluminum oxide coating part, and aims to overcome the defects of an existing cleaning technology in the aspects of removing a complex deposited film, protecting the coating integrity and improving the cleaning efficiency. The method comprises the steps of isopropanol soaking treatment, flowing pure water flushing, hot water soaking treatment, carbon dioxide dry ice sand blasting treatment, chemical cleaning of a niflumic acid mixed solution, high-pressure water washing, ultrasonic cleaning and the like. By the adoption of the technical scheme, the efficient, thorough and lossless cleaning effect can be achieved, and the high-standard requirement for cleaning of the nanometer aluminum oxide coating part in the modern industry is met.

The invention discloses a preparation method of a lithium aluminum titanium phosphate solid electrolyte nano powder material, which comprises the following steps: S1, weighing a lithium source, an aluminum source, a titanium source and a phosphorus source, and preparing a sol precursor; s2, performing microwave treatment to obtain a gelatinous intermediate; s3, carrying out annealing treatment after grinding to obtain nano titanium aluminum lithium phosphate powder; s4, placing the substrate in a plasma enhanced atomic layer deposition reaction cavity, vacuumizing, and introducing plasma activation gas; alternately pulse trimethylaluminum and titanium tetrachloride precursors, and depositing to obtain a gradient oxide intermediate layer; s5, introducing oxygen plasma to oxidize the residual precursor to form a gradient oxide coating layer; and S6, carrying out annealing treatment to obtain the lithium titanium aluminum phosphate solid electrolyte nano-powder material. According to the preparation method disclosed by the invention, the side reaction of the LATP powder and lithium metal is effectively inhibited, the interface stability and the ionic conductivity are improved, and the high-performance requirement of an all-solid-state lithium ion battery on a solid electrolyte material can be met.

The invention relates to a laser deep penetration welding method for producing a metallurgical joint of at least two oxide-coated metallic workpieces (1, 2) by means of a laser beam unit (11) which is controlled for laser beam shaping of a laser beam (10) such that a temperature gradient (gradT) is generated in the liquid melt of the weld seam (4') to form a broad-lens-shaped weld seam (4'), which results in a broad-lens-shaped weld seam (4') with a contour angle (α) relative to the joining zone (3). F ) of less than 80 degrees, in particular of less than or equal to 75 degrees and a width-to-depth ratio between 1:0.8 and 1:1.2.

The invention relates to the technical field of titanium dioxide production, in particular to high-retention and high-weather-resistance titanium dioxide as well as a preparation method and application thereof. Comprising a titanium dioxide base material and a coating layer located on the surface of the titanium dioxide base material, and the coating layer sequentially comprises an aluminum oxide film layer, a tin oxide film layer and an ascorbyl palmitate film layer from inside to outside. The preparation method comprises the following steps: preparing titanium dioxide-based material slurry, sequentially carrying out aluminum oxide coating and tin oxide coating, then carrying out water washing, flash evaporation and steam powdering, and adding ascorbyl palmitate in the steam powdering process to obtain the high-retention and high-weather-resistance titanium dioxide. The tin coating layer and the ascorbyl palmitate coating layer are introduced to the outer side of the aluminum oxide coating layer, so that the retention rate and weather resistance of titanium dioxide in paper are remarkably improved, and the use requirements of high-end paper are met; the white water treatment pressure can be reduced, and the economic benefit is improved.

The invention discloses a preparation method of a gas-phase porous silicon carbon negative electrode material. The preparation method comprises the following steps: (1) depositing silane gas and carbon source gas in porous carbon through a fluidized bed / rotary kiln equipment vapor deposition process to form a CVD (Chemical Vapor Deposition) porous silicon carbon material; (2) carrying out low-temperature ozone pretreatment on the obtained CVD silicon carbon material; and (3) carrying out ALD atomic layer deposition on the CVD silicon-carbon material subjected to ozone pretreatment to form a nano-scale metal oxide coating layer on the surface of the material. Wherein the ozone treatment process method and the ALD technology are suitable for optimizing artificial coating layers of various CVD gas-phase silicon carbon materials with various initial surface carbon layers, can realize a batch, uniform and stable modification effect, and have stable and positive effects in the aspects of initial capacity, first effect and volume expansion inhibition of the materials. The method has a remarkable CVD silicon carbon secondary coating effect, is suitable for batch preparation of materials, can achieve a remarkable material electrochemical performance optimization effect, and is simple, convenient and efficient.

The utility model discloses an aluminum alloy window frame section bar, which relates to the field of section bars, and has the technical scheme that the aluminum alloy window frame section bar comprises a section bar body, a track and a drainage inclined plane are arranged on the section bar body, a wind blocking block is arranged on the drainage inclined plane, and a water outlet hole is formed in the wind blocking block. When rainwater falls on the sectional material body, the rainwater slides down along the drainage slope and leaves the sectional material body under the action of gravity, so that the rainwater is not prone to remaining in the sectional material body, when a window sash is installed on the sectional material body, the wind blocking block can well cover the connecting position of the window sash and a track, the wind resistance of the sectional material body is guaranteed, and the window sash is prevented from falling off. When part of rainwater falls on the wind blocking block, the water outlet holes can drain the part of rainwater in time, the possibility that the rainwater remains in the wind blocking block is reduced, the overall drainage effect of the aluminum alloy window frame sectional material is improved, the aluminum oxide coating sprayed on the surface of the sectional material body can separate the sectional material body from external liquid and other substances, and the sectional material body is not prone to being corroded.

The application relates to an automatic magnesium oxide coating analysis system and method, and belongs to the technical field of coating quality analysis. The method comprises the following steps: acquiring the properties, infrared spectrum and environmental temperature and humidity data of the magnesium oxide coating, and constructing a multi-source feature set; analyzing the distribution dispersion and local enrichment risk of free water based on a dynamic migration model, and analyzing the bond weakening degree and dissociation risk of combined water based on a chemical stability model; generating free water treatment process parameters for inhibiting structural damage and combined water treatment process parameters for preventing performance attenuation according to abnormal analysis results and coating properties; and through coupling influence analysis on the two types of process parameters, the balance requirements of coating structural integrity and chemical stability are coordinated, an optimized process scheme is generated, and synergistic regulation and control are realized. The application realizes accurate identification, independent analysis and synergistic control of free water and combined water, and improves the accuracy, reliability and quality consistency of coating moisture treatment.

The utility model discloses corrugated paper with a flame-retardant effect, which comprises a corrugated paper body, the corrugated paper body comprises core paper, surface paper is arranged at the top of the core paper, an upper flame-retardant layer is arranged at the top of the surface paper, the upper flame-retardant layer comprises a tungsten carbide coating and an aluminum oxide coating, bottom paper is arranged at the bottom of the core paper, and a flame-retardant layer is arranged at the bottom of the bottom paper. A lower flame-retardant layer is arranged at the bottom of the bottom paper and comprises a polyvinyl chloride coating and a polytetrafluoroethylene coating, the tungsten carbide coating is coated at the top of the surface paper, the aluminum oxide coating is coated at the top of the tungsten carbide coating, and the thickness of the tungsten carbide coating is the same as that of the aluminum oxide coating. The upper flame-retardant layer is arranged, the aluminum oxide coating contained in the upper flame-retardant layer can be used for carrying out first-layer flame-retardant protection treatment on the surface paper, and the tungsten carbide coating can be used for carrying out second-layer flame-retardant protection treatment on the surface paper after the aluminum oxide coating is damaged, so that the overall fire resistance of the surface paper is effectively improved.

The invention belongs to the technical field of battery materials, and relates to a double-layer coated sodium vanadium phosphate positive electrode material as well as a preparation method and application thereof. The invention provides the double-layer coated sodium vanadium phosphate positive electrode material, the innovative design of the double-layer coated sodium vanadium phosphate positive electrode material remarkably improves the performance of the existing aqueous battery, and particularly provides an effective solution for the problems of short cycle life and low capacity of the traditional aqueous battery. The novel positive electrode material is composed of a sodium vanadium phosphate inner core, an aluminum oxide coating layer and a carbon coating layer, the electrochemical performance of the sodium vanadium phosphate inner core is further optimized by doping metal, so that the material not only has higher structural stability, but also can effectively improve the charge-discharge efficiency and capacity.

The invention relates to the technical field of bionic electronic skin and flexible sensing materials, in particular to an AF / rGO fiber tactile system and method.The AF / rGO fiber tactile system and method.The AF / rGO fiber tactile system and method are specifically characterized in that aramid 1414 fibers are adopted as a base material, subjected to ultrasonic cleaning and then repeatedly soaked in a graphene oxide solution, a graphene oxide coating is loaded on the surface of the aramid 1414 fibers, and the AF / rGO fiber tactile system is obtained; reducing into a graphene oxide coating by utilizing steam reduction, and performing hot pressing synergism to prepare an AF / rGO fiber sensor; the piezoresistive and thermosensitive effects of the fiber are utilized, the fiber serves as a core material of the sensor and is connected with two electrodes to be assembled into the sensor, mechanical and temperature stimulation is converted into resistance signal change, and the pressure and temperature sensing capacity of the skin is simulated through multi-mode fusion and signal processing. Based on the contact resistance dynamic response of the micro-scale structure, combining a neural network algorithm to realize fabric recognition and gesture recognition; and meanwhile, fire early warning is triggered through temperature resistance signal change by utilizing the flame-retardant characteristic of the aramid fiber substrate.

The invention relates to the technical field of a plasma spraying process of a high-corrosion-resistance yttrium oxide coating and a gradient structure design method, and particularly discloses the plasma spraying process of the high-corrosion-resistance yttrium oxide coating and the gradient structure design method. The invention aims to solve the problems that a traditional plasma spraying yttrium oxide coating is high in porosity, non-uniform in microstructure, easy to crack and peel off due to mismatch of a thermal expansion coefficient and a metal matrix, and difficult to consider compactness, stress buffering and long-term stability at the same time. The method comprises the following steps: carrying out degreasing cleaning, sand blasting coarsening, ultrasonic oscillation and drying pretreatment on a substrate, carrying out high-corrosion-resistance yttrium oxide composite powder spraying by adopting plasma spraying parameters optimized by an orthogonal test, and arranging multiple layers of intermediate layers with components and thermal expansion coefficients in gradient transition between the substrate and a coating, follow-up heat treatment and nano sol hole sealing treatment are assisted. By adopting the technical scheme, low porosity, high bonding strength, excellent thermal mechanical stability and long-term corrosion resistance in a strong corrosion environment of the coating can be realized.

An implantable medical device has a structural framework having a base material that is coated with a surface enhancement layer. The coated structural framework is then poled with a desired polarity that carries either a positive charge or a negative charge on the surface of the coated structural framework when the structural framework is under deformation. The surface enhancement layer can be a copolymer or a zinc oxide coating, or can include some portions that are the copolymer and some portions that are the zinc oxide coating.