85 results about "Titanium foil" patented technology

The invention discloses a carbon-doped titanium dioxide nanotube-molybdenum disulfide energy-storage antibacterial material and a preparation method thereof. The preparation method comprises the following steps: carrying out primary anodic oxidation on a clean titanium foil in a mixed electrolyte of ethylene glycol, water and ammonium fluoride; after ultrasonic treatment is carried out in a hydrochloric acid solution for set time, secondary anodic oxidation is carried out, and the mixed electrolyte of the secondary anodic oxidation is the same as that of the primary anodic oxidation; annealing the titanium foil subjected to anodic oxidation twice in an argon atmosphere, putting an annealed sample into a mixed solution of sodium molybdate, a sulfur source and glucose, and carrying out hydrothermal treatment; and the titanium foil subjected to hydro-thermal treatment is cleaned and dried, and the carbon-doped titanium dioxide titanium foil with the surface covered with molybdenum disulfide is obtained. The MoS2-coated carbon-doped titanium dioxide nanotube (TNT-C-atMoS2) with high biocompatibility developed by the invention has a synergistic effect of charge antibiosis and chemical sterilization, so that the problem of intractable biological fouling of a titanium-based metal material in ocean engineering equipment is effectively solved.

The invention discloses a TA4-xB alloy and a preparation method thereof, the content of B in the alloy is 0.01-0.5 wt%, and the balance is Ti and other impurities. The preparation method comprises the following steps: dividing sponge titanium and TiB2 wrapped by pure titanium foil into three equal parts, smelting in three times by adopting a vacuum non-consumable arc smelting furnace to obtain three button ingots, then putting the three button ingots into the smelting furnace for secondary smelting to obtain an alloy ingot, and finally overturning and repeatedly smelting the alloy ingot obtained by cooling after secondary smelting for three times. A TA4-xB alloy cast ingot with uniform components is obtained through smelting, the cast ingot is machined through a cast ingot machine and subjected to forging-free direct rolling to form a plate, the rolling temperature is 940 DEG C, the finish rolling temperature is 880 DEG C, five passes of rolling are conducted, the rolling deformation of the first pass is 50% or above, and the accumulative deformation is 90%. According to the method, a proper amount of B element is added, a TiB phase is generated in the TA4 titanium material, grains are refined, and then the mechanical property of the TA4 titanium material is improved through multi-pass large-deformation rolling. The method is low in process cost, short in flow, good in material comprehensive performance and free of large-scale equipment transformation.

The present invention provides a method for preparing an AgCuTi active solder, relating to the technical field of brazing materials. The preparation method comprises the following steps: pretreating a titanium foil, sequentially electroplating the surface with silver and copper, and diffusing the electroplated titanium foil in a vacuum environment at 600-700°C for 24 hours to obtain the AgCuTi solder. The method provided by the present invention can easily and conveniently prepare sheet- and strip-shaped AgCuTi active solders, and the active solders are less susceptible to the presence of CuTi intermetallic compounds while exhibiting good performance.

This invention provides a method for preparing (002) crystal-plane oriented metallic zinc and its application. The invention employs a two-electrode electrochemical deposition technique, using iron foil, titanium foil, or copper foil as the working electrode, commercial zinc foil as the counter electrode, and an aqueous zinc salt solution as the electrolyte. Constant current density discharge deposition is used to deposit (002) crystal-plane oriented metallic zinc on the working electrode; the constant current density is 50 mA cm⁻¹. ‑2 ~200 mA cm ‑2 The (002) crystal-plane oriented metallic zinc prepared by this invention can be used in rechargeable zinc-ion batteries. The two-electrode electrolytic cell device used in the preparation of metallic zinc in this invention is simple, the preparation process is straightforward, and the preparation method is more universal. The (002) crystal-plane oriented metallic zinc prepared according to the method of this invention can suppress zinc dendrite growth and hydrogen evolution, thereby improving the service life of rechargeable zinc-ion batteries.

The embodiment of the invention provides a preparation method of a titanium foil strip with high elongation and good surface microcosmic quality. The preparation method comprises the steps that a sponge titanium raw material is smelted and machined through a primary electron beam cold hearth smelting furnace; the titanium metal plate blank is coated with an anti-oxidation coating to form an anti-oxidation coating; the titanium metal plate blank coated with the anti-oxidation coating is subjected to heating, heat preservation, hot rolling and continuous annealing shot blasting acid pickling treatment; the hot-rolled titanium coil is subjected to first-rolling-process cold rolling, and continuous annealing, shot blasting and acid pickling are conducted after cold rolling; carrying out multi-rolling-process cold rolling and semi-finished product annealing by adopting a cold rolling unit and an argon protection cover type furnace; carrying out finished product rolling on the annealed master tape by adopting a cold rolling unit; performing finished product heat treatment on the titanium strip by adopting an argon shield continuous annealing furnace; and straightening the annealed titanium strip by adopting a tension straightening machine. According to the embodiment of the invention, the titanium foil strip with high elongation and good surface microcosmic quality is obtained, and the prepared titanium foil strip is excellent in forming performance and surface microcosmic quality.

The application relates to a preparation method of a tin dioxide negative material, and belongs to the technical field of lithium battery negative material synthesis. The application aims at solving the problems of the existing SnO2 negative material, such as large volume effect in the charging and discharging process, easy falling off on the current collector, complex preparation process of the SnO2 negative material and high cost. The preparation method comprises the following steps: S1, preparing a micro-arc oxidation electrolyte; S2, placing a titanium foil and the micro-arc oxidation electrolyte in a micro-arc oxidation electrolytic tank, taking the titanium foil as a positive electrode and a stainless steel plate as a negative electrode; and S3, micro-arc oxidation. The application is used for the preparation of the tin dioxide negative material.

The invention discloses an activating and collecting device for laser inertial confinement fusion, which comprises a fixing ring, a foil supporting plate, a collecting foil, an activating medium, a background foil, a collector supporting plate and a collector shell, and is characterized in that a vanadium foil is arranged in the collecting foil, graphite paper is arranged in the collecting foil, and the activating medium is arranged in the collecting foil. An aluminum foil and a titanium foil are arranged in the collecting foil, the collecting foil comprises a vanadium foil, graphite paper, the aluminum foil and the titanium foil, the thickness of the collecting foil is micron dimension, the diameter of the collecting foil is smaller than 150mm, the surface of the collecting foil needs to be polished until the surface roughness is smaller than or equal to 1mu m rms, and by activating a medium and reducing the consumption of DIM, the medium can be activated while neutrons are activated, and the surface roughness of the collecting foil is smaller than or equal to 1mu m rms. The reliability of different collected materials and the collection efficiency of different products of the four materials in an ICF extreme environment can be measured in one time through the vanadium foil, the graphite paper, the aluminum foil and the titanium foil of the collection foil, and the experiment efficiency is improved.

This invention discloses a vacuum hot pressing process for titanium foil, comprising the following steps: S1, roll cutting; S2, sheet cleaning; S3, loading fixture; S4, vacuum hot pressing; ensuring the sheet surface is clean and dust-free during the cleaning process; the loading fixture ensures the sheet is flat and the fixture is locked; the vacuum heat treatment process ensures the vacuum degree of the heat treatment furnace, and the heat preservation temperature is adjusted according to the flatness standard; high-purity argon gas is introduced during the cooling process to ensure that no micro-oxide layer is generated on the sheet surface, thereby improving the surface quality of the titanium foil.

The invention belongs to the technical field of mass spectrometry analysis and research, and discloses a laser-based metal film vibration mass spectrometry sampling method which comprises the following specific steps: step 1, dissolving a to-be-detected sample to prepare a saturated solution of melamine, taking ethanol as a solvent, and oscillating the prepared solution by using an ultrasonic oscillator to ensure that the solution is in a uniform dispersion state; a sample is uniformly sprayed on titanium foil, a laser thermal mechanical effect is accurately regulated and controlled, non-contact desorption is realized by utilizing mechanical vibration wave conduction with optimized thickness of the titanium foil, the problem of molecular cracking caused by direct irradiation of traditional laser is effectively avoided, a uniform sample layer is formed through ultrasonic dispersion pretreatment and warm lamp temperature control drying, and the thermal mechanical effect of the titanium foil is accurately regulated and controlled. Dynamic sampling of a three-position translation table and laser parameter adaptation are combined, meanwhile, a cooperative adjustment mechanism of thermal expansion response of a titanium foil substrate and the distance of an ion source can be compatible with diversified sample analysis, and stable and repeatable long-time mass spectrum detection is achieved on the premise that the integrity of a molecular structure is maintained.

The invention discloses an SPS preparation method and application for sintering and connecting TZM and graphite by using titanium hydride powder in the field of connection of TZM / graphite dissimilar materials, and particularly relates to a TZM / graphite composite material obtained by performing sintering diffusion connection on the TZM and graphite dissimilar materials by using the titanium hydride powder as a middle layer material through an SPS technology. The method has the following advantages that the titanium hydride powder serves as an interlayer material, compared with existing used titanium powder or titanium foil, the titanium hydride powder is environmentally friendly and low in component content, the titanium hydride powder can release hydrogen and generate elemental titanium within the temperature range of 400-800 DEG C, oxidation of titanium can be reduced while a base metal oxide layer can be removed, interdiffusion and solid solution of interface Mo and Ti atoms are promoted, and the service life of the interface Mo and Ti is prolonged. And a good metallurgical bonding interface is formed through reaction with the graphite side, and the TZM / graphite composite material which is free of crack defects, high in interface bonding strength and good in durability is obtained.

The invention relates to a substrate (2) for depositing a film (5), comprising a base layer (3) based on a titanium foil and an intermediate layer (4) based on titanium oxide. The titanium oxide layer is constructed on the titanium foil. Further, a thin film ceramic layer (5) (high-k dielectric barium titanate (BZT)) may be deposited on the intermediate layer (4). The invention further relates to a thin-film device (2) comprising the substrate (2) and a ceramic thin-film layer (5), and to a production method. Furthermore, an electrode, a capacitor, a multilayer capacitor and a medical device comprising the base layer (3), the intermediate layer (4) and the ceramic layer are disclosed.

The badminton racket comprises a badminton racket body, the badminton racket body comprises a racket frame, a racket rod and a handle which are integrally arranged, the racket rod comprises an outer carbon fiber layer and an inner titanium foil film layer, and the racket rod is formed by winding and curing the carbon fiber layer and the titanium foil film layer. According to the badminton racket, the titanium foil film layer is additionally arranged on the racket rod, and the titanium foil film is light in weight and higher than carbon fiber cloth in strength, so that the rigidity and the stability of the racket rod can be improved under the condition that the weight is not obviously increased; the titanium foil film has a good damping characteristic and can absorb vibration during ball hitting, the cushioning effect is improved, and the ball hitting accuracy and the hand feeling comfort degree are improved; the four layers of carbon fiber cloth are laid at the angles of 0 degree, 45 degrees, 90 degrees and 135 degrees respectively to form a structure shaped like a Chinese character'mi ', so that the racket rod is firmer and more durable and not prone to being broken and bent. The racket is novel in structure, capable of effectively improving the hitting feeling of the racket body and suitable for popularization.

The utility model relates to the technical field of titanium foil adhesive tapes, in particular to a high-shielding composite titanium foil adhesive tape. The titanium foil adhesive tape comprises a titanium foil adhesive tape body and a circular frame, the inner wall of the titanium foil adhesive tape body and the circular frame are fixedly installed, the inner surface of the circular frame is fixedly connected with two fixing rods, the ends, close to each other, of the two fixing rods are fixedly connected with a cylinder, one end of the cylinder is rotationally connected with a rotating shaft, and the rotating shaft is fixedly connected with the titanium foil adhesive tape body. An L-shaped plate is fixedly connected to one end of the rotating shaft, a pull rod is slidably inserted into the L-shaped plate, a pull plate is fixedly connected to one end of the pull rod, an abutting plate is fixedly connected to the end, away from the pull plate, of the pull rod, and the abutting plate is slidably connected with the surface of the titanium foil adhesive tape body. The titanium foil adhesive tape solves the problems that when the titanium foil adhesive tape body is used, if the titanium foil adhesive tape body is not flat, an air gap exists, the contact area between the titanium foil adhesive tape body and an adhered object is reduced by the air gap, and the viscosity of the titanium foil adhesive tape body cannot be fully exerted.

The invention discloses a preparation method of a polymer copolymerization modified aqueous zinc ion battery negative electrode, and belongs to the technical field of zinc ion batteries. According to the technical scheme, the preparation method comprises the following steps: carrying out copolymerization reaction on aniline and fluoroaniline, freeze-drying to obtain an aniline-fluoroaniline copolymer, slowly stirring the aniline-fluoroaniline copolymer, zinc powder and a solvent, adding a conductive agent and a binder, and rapidly stirring to prepare slurry; and coating a copper foil or a titanium foil with the slurry to obtain the polymer copolymerization modified aqueous zinc ion battery negative electrode. The polymer copolymerization modified aqueous zinc ion battery negative electrode has the beneficial effects that the polymer copolymerization modified aqueous zinc ion battery negative electrode has good electronic conductivity and excellent interface regulation and control capability, zinc dendrite growth and hydrogen evolution reaction can be effectively inhibited, and the diffusion efficiency of zinc ions is improved, so that the cycling stability and the battery performance of the zinc negative electrode are remarkably improved; the technical problems that an existing modification material is poor in adhesion, low in conductivity, serious in electrode polarization and the like are solved.

The invention discloses a manufacturing process of a high-strength high-temperature-resistant steel material, the steel material adopts a surface layer-transition layer-matrix composite reinforced structure, and the matrix is prepared from the following elements in percentage by mass: less than or equal to 0.030 wt% of C, 16.0-18.0 wt% of Cr, 10.0-14.0 wt% of Ni, 2.0-3.0 wt% of Mo, less than or equal to 2.00 wt% of Mn, less than or equal to 1.00 wt% of Si, less than or equal to 0.045 wt% of P, less than or equal to 0.030 wt% of S, less than or equal to 0.11 wt% of N and the balance of Fe and inevitable impurity elements; the transition layer comprises pure titanium foil and 0.1-0.3% (wt%) of Y2O3, and a Ti-Fe intermetallic compound interface is formed through vacuum hot pressing; and the surface layer adopts a plasma spraying TiC ceramic layer. According to the gradient composite design, through structural innovation and process cooperation, the steel material has better surface hardness, interface bonding strength, matrix tensile strength and high temperature resistance, directional regulation and control of the material performance are achieved, and wide application prospects are shown in the fields of aerospace, biomedicine, energy storage and the like.

The invention discloses a method for improving the performance of a TA4-0. 1B titanium material, and belongs to the technical field of titanium metal material preparation. The oxygen content of the TA4-0. 1B titanium material is controlled to be 0.2-0.4 wt%, and the TA4-0. 1B titanium material contains B with the fixed addition amount being 0.1 wt%, and the balance Ti and inevitable impurities. In the preparation process, TiO2 powder and TiB2 powder are wrapped by pure titanium foil to form a plurality of material bags, the material bags are divided into three equal parts, and sponge titanium is divided into four equal parts; raw materials are sequentially filled in a layered manner according to a manner of'titanium sponge, material package, titanium sponge, material package, titanium sponge, material package and titanium sponge 'and are pressed into columnar material blocks as consumable electrodes. The obtained electrode block is smelted twice through a vacuum self-consuming electric arc smelting furnace, a TA4-0. 1B-xO alloy cast ingot with uniform components is obtained, and the TA4-0. 1B-xO alloy cast ingot is machined through an ingot casting machine and subjected to non-forging direct rolling to form a plate; through fixation of the B content and graded regulation and control of the oxygen content, balance between high strength and high plasticity is achieved, and the yield ratio of the alloy can be effectively improved through coordinated regulation and control of the two elements, so that the application of TA4 titanium materials in the fields of aerospace, medical implants, high-strength structural parts and the like is expanded.

The application relates to the technical field of foil production, in particular to a low-cost high-strength precise titanium foil production process for 3C flexible screens; the process comprises the following steps: S1, blanking: taking a plate or a coiled strip as raw material; S2, rolling: feeding the raw material into a rolling mill to roll to obtain a semi-finished product titanium foil; S3, annealing: feeding the semi-finished product titanium foil into a vacuum furnace to perform annealing treatment to obtain a titanium foil. When the deformation rate is relatively large, the first lubricant at high temperature is sprayed to improve the plastic deformation capacity of the raw material, then the two lubricants are combined, the stress concentration in the raw material is reduced, the processing defects on the surface of the raw material are reduced, and when the deformation rate is relatively small, the second lubricant at low temperature is sprayed, the size of the raw material is more stable, and the machining precision is improved.

The application relates to the field of photocatalysis, in particular to a composite material for photocatalytic degradation of PFOA and a preparation method thereof. The composite material comprises the following steps: step one: using titanium foil as an anode and a nickel sheet as a cathode, carrying out anodic oxidation, and then annealing to obtain TiO2-NT; step two: first, acid pickling TiO2-NT, and then preparing TiO2-NT suspension liquid; adding chloroplatinic acid, a dispersing agent and potassium borohydride into the TiO2-NT suspension liquid to prepare a Pt / TiO2-NT composite material; step three: coating ammonium perrhenate on the Pt / TiO2-NT composite material, and then sintering, repeating 1-2 times to obtain a modified Pt / TiO2-NT composite material; and step four: preparing a MIP-Pt / TiO2-NT composite material through a molecular imprinting technology.

The invention relates to the technical field of metal layered composite materials, in particular to a preparation method of a graphite film / titanium alloy layered composite structure, which comprises the following steps: carrying out plasma treatment on the surface of a graphite film; placing the graphite film and the titanium foil which are subjected to plasma treatment on a substrate, and alternately carrying out ultrasonic consolidation layer by layer to obtain a layered composite material prefabricated blank; and the layered composite material prefabricated blank is put into a vacuum hot pressing furnace to be subjected to bending forming and interface reaction in sequence, and the graphite film / titanium alloy layered composite structure is obtained. The preparation method of the graphite film / titanium alloy layered composite structure aims at solving the problems of heat resistance of titanium alloy used in a high-temperature environment and structural instability caused by overhigh local temperature.

The invention discloses a process method for improving the single-time synthesis yield of colorless diamond. The process method comprises the steps of preparing a prefabricated catalyst layer, prefabricating a carbon source layer, assembling, synthesizing at high temperature and high pressure and the like. The preparation of the prefabricated catalyst layer and the prefabricated carbon source layer is performed through one-time synthesis, and the catalyst and the graphite are subjected to pre-nitrogen removal treatment, so that the nitrogen removal efficiency is improved, the use amount of titanium foils can be reduced, and the production cost is reduced; on the other hand, the density of catalyst and carbon source finished products is effectively improved, the contractibility is reduced, the uniformity is improved, the synthesis stability is good in a long process period, the growth cavity is expanded to the maximum extent, the synthesis space is fully utilized, and the single-time synthesis yield can reach 100 ct or above. The prefabricated catalyst layer and the prefabricated carbon source layer are prepared through one-time synthesis, the contractibility of the catalyst and carbon source finished product can be effectively reduced, the uniformity of the catalyst and carbon source finished product can be improved, the current can not be reduced in the synthesis process, and precise fine adjustment is achieved.

This invention relates to the field of plate heat exchanger material processing technology, specifically to a method for preparing corrosion-resistant titanium alloy foil for plate heat exchangers. The preparation method includes the following steps: S1, preparing titanium alloy ingots; S2, preparing billets to be rolled; S3, cooling and cold rolling; S4, post-treatment. This invention involves depositing boron oxide powder within micro-etched micropores, and then coating the surface of the titanium foil with a composite liquid of mesoporous ceramic powder loaded with ostinidine. This forms a protective layer with antibacterial and corrosion-resistant properties on the surface of the warm-pressed titanium alloy billet, thereby preventing direct contact between corrosive media and the titanium alloy foil, reducing the corrosion rate. Furthermore, in plate heat exchangers, coating the titanium alloy with this ostinidine-loaded mesoporous ceramic powder solution helps reduce the growth of microorganisms on the surface of the titanium alloy foil, improving the hygienic performance and operating efficiency of the heat exchanger.

The application discloses an anti-aging and anti-impact AMB silicon nitride ceramic copper-clad plate and a preparation method thereof. The AMB silicon nitride ceramic copper-clad plate is prepared from a ceramic substrate, a first metal foil, a second metal foil, a nano metal layer and a copper-clad plate. The first metal foil is a copper foil or a first alloy foil, and the second metal foil is a titanium foil or a second alloy foil. The inner surface of the copper-clad plate is coated with a nano metal organic solution, and the nano metal layer is formed after drying. The first metal foil, the second metal foil and the two surfaces of the ceramic substrate are sequentially pasted from outside to inside, and the anti-aging and anti-impact AMB silicon nitride ceramic copper-clad plate is obtained by welding. The AMB ceramic copper-clad plate prepared by the method has higher bonding strength, anti-aging performance and anti-impact performance than a conventional silver-copper-titanium solder paste product, has advanced overall performance, and is simple in process, low in cost and suitable for industrial promotion.

The application discloses a titanium foil-based ceramic filter screen material and a preparation method thereof, and belongs to the technical field of precision filter materials.The titanium foil-based ceramic filter screen material comprises a titanium foil base body and a micro-arc oxidation ceramic layer, and a plurality of laser-prepared through holes are arranged on the titanium foil base body, wherein the micro-arc oxidation ceramic layer is distributed on the surface of the titanium foil base body and the inner walls of the plurality of laser-prepared through holes, so that the technical problems that the toughness, temperature resistance and corrosion resistance of the filter screen are difficult to be considered simultaneously, the micro-arc oxidation on the titanium foil base body is directly broken through to form holes, and the filter screen is easy to break are solved, the technical effect that the filtering precision and the filter screen aperture are controllable, the structure is stable, the performance is excellent, mass production is achieved, and the continuous production of roll-to-roll is suitable is achieved.

The utility model relates to the technical field of surface engineering, and discloses a shielding device for PVD (Physical Vapor Deposition) coating, which comprises a rack, the left side of the rack on the right side is rotatably connected with a sliding frame, the right side of the inner wall of the sliding frame is fixedly connected with an air cylinder, the other end of the air cylinder is fixedly connected with a shielding plate, and the bottom of the shielding plate is fixedly connected with a titanium foil. A shielding sleeve is fixedly connected to the top of the shielding plate, a first servo motor is fixedly connected to the middle of the left side of the rack on the left side, a driving gear is fixedly connected to the output end of the first servo motor, and a driven gear is connected to the outer wall of the driving gear in an engaged mode. The servo motor drives the gear set to adjust the angle of the sliding frame, the air cylinder controls the shielding plate to move, the shielding sleeve limits a film coating area, accurate film coating is achieved, the titanium foil provides strength and tolerance, fitting with a workpiece is ensured, the shielding effect is improved, the service life is prolonged, the film coating quality is improved through angle adjustment, adaptability is enhanced, and the shielding requirement is met.

The invention provides a titanium foil bipolar plate base material with low anisotropic roughness and a screening method thereof. The screening method comprises the following steps: measuring the roughness RaRD of the surface of a titanium foil base material to be selected along a rolling direction RD and the roughness RaTD of the surface of the titanium foil base material to be selected along a vertical rolling direction TD; calculating the ratio of the RaTD to the RaRD; selecting a base material satisfying RaRD < = 65nm, RaTD < = 85nm and RaTD / RaRD < = 1.5 at the same time; and depositing a carbon-based coating on the surface of the base material by adopting a cathode arc ion plating technology, wherein the arc current is controlled within 50A-100A, and the total thickness of the coating is 50-100A. The anisotropic roughness of the surface of the titanium foil base material can be effectively controlled, collaborative optimization of the PVD carbon coating in the aspects of interface contact resistance and corrosion resistance is achieved, and the performance stability and consistency of the fuel cell bipolar plate are remarkably improved.

The application discloses a SiCp / Al laser welding method for constructing gradient heterogeneous interfaces by matching high-entropy alloy and intermediate layer, and relates to the technical field of metal matrix composite welding. The method comprises the following steps: S1, pretreating the surfaces to be welded and heterogeneous metal foils; S2, mixing 50%-80% of homogeneous aluminum alloy powder, 5%-30% of AlCoCrFeNi high-entropy alloy powder and active auxiliary components to prepare a pre-filled material; S3, coating the pre-filled material on the joint cross section and / or upper surface, and clamping and fixing the heterogeneous metal foils at the center position of the joint; and S4, performing laser welding. The core of the method is that when the content of the high-entropy alloy is 5%-20%, the titanium foils with a matching thickness of 20-100 microns or the zirconium foils with a matching thickness of 50-150 microns can actively construct the organizational structure with continuous composition transition and phase gradient distribution in the heterogeneous interface region. The application effectively alleviates the interface stress concentration caused by the mismatch of thermal physical properties, significantly inhibits the brittle fracture of the joint, and improves the comprehensive mechanical properties of the welded joint.

The invention discloses a preparation method of a hydrogen absorption sheet without activation, which comprises the following steps: (1) cleaning: cleaning a titanium foil substrate to remove surface dirt and oxide; (2) coating pretreatment: rapidly transferring the cleaned and blow-dried titanium foil to a cavity of a magnetron sputtering coating machine, vacuumizing until the vacuum degree is superior to 4 * 10 < 14 > Pa, carrying out in-situ heating treatment on a titanium foil substrate, preserving heat at 200-400 DEG C for 0.5-2 hours, and then cooling to room temperature; (3) coating: preparing a Pd film or a Pd-based alloy film with the thickness of 50-300nm on the titanium foil substrate by adopting a magnetron sputtering coating process; and (4) punch forming is conducted, specifically, the titanium foil plated with the Pd film or the Pd-based alloy film is punched, and the hydrogen absorption sheet with the boundary dimension being 1-20 mm and the thickness being 0.1-0.5 mm is obtained. The prepared hydrogen absorption sheet is mainly used for controlling the content of hydrogen in various solid-state microwave devices and assemblies in the field of microelectronic packaging and does not need to be activated before being used, the devices and the assemblies using the hydrogen absorption sheet do not need to be subjected to additional baking hydrogen removal treatment, and the production efficiency is improved.

This invention discloses a method for preparing an antibacterial nickel-titanium-zinc alloy ingot, including: a method for preparing an electrode block and a method for preparing the ingot; to prevent the zinc metal from vaporizing and volatilizing during the heating process, the zinc metal is wrapped in titanium foil. As long as the metal temperature does not reach the melting point of titanium metal during the heating process, the zinc metal can be preserved in the titanium foil sealed particles, which can ensure that even if the solution temperature reaches hundreds of degrees Celsius above the boiling point of zinc metal during the smelting heating process, the zinc metal will not volatilize. The titanium foil used in this invention is commercially available, and the operation of loading the zinc metal into the titanium foil is simple. After wrapping, only conventional welding operations are required to seal the zinc metal.

The present application relates to the technical field of photocatalytic degradation materials, in particular to a photocatalytic material for degrading PFOA and a preparation method thereof. The present application uses titanium foil as a TiO2 NT template in an electrochemical reactor with a direct current power supply, uses the titanium foil as an anode and graphite as a cathode, obtains highly ordered and vertically arranged TiO2 NTs after anodic oxidation, and modifies the TiO2 NTs through MIP. The molecular imprinting technology can enable the photocatalyst to selectively identify and combine with target molecules with high affinity. The doping of metal iron ions can introduce new energy levels in the band gap of the semiconductor TiO2, thereby enhancing the visible light absorption capacity of TiO2 by adjusting the band gap. Not only can the visible light absorption capacity of TiO2 be enhanced, but also the adsorption capacity of the target pollutant PFOA can be improved, thereby promoting the efficient degradation of PFOA.

The invention discloses a praseodymium target and a preparation method and application thereof, and belongs to the technical field of nuclear target preparation. The praseodymium target comprises a titanium foil substrate, a praseodymium film deposited on the titanium foil substrate and a carbon film covering the praseodymium film. The preparation method comprises the following steps: preparing a substrate: cutting a titanium foil and fixing the titanium foil on a target frame; plating a praseodymium film by vacuum evaporation: placing the target frame fixed with the titanium foil in vacuum evaporation equipment, putting a metal praseodymium evaporation material, vacuumizing, adding evaporation current for evaporation, and depositing on the titanium foil substrate to obtain the praseodymium film; the titanium foil plated with the praseodymium film is transferred into vacuum magnetron sputtering equipment, the carbon target serves as a sputtering target, vacuumizing is conducted, magnetron sputtering is conducted in the argon atmosphere, the carbon film is deposited on the surface of the praseodymium film, and then the praseodymium target is obtained. The problem that the praseodymium material is prone to oxidation is solved, the praseodymium target meeting the nuclear physics experiment requirement is obtained, and the scheme is high in operability and practicability.