182 results about "High-power impulse magnetron sputtering" patented technology

A method of fabricating a solar cell is provided. The method includes depositing a transparent conductive contact layer on a surface of a substrate, where the transparent conductive contact layer is configured to act as a front electrode for the solar cell, depositing a window layer over the transparent conductive contact layer, depositing an absorber layer on the window layer, wherein the absorber layer and the window layer are oppositely doped and form a semiconductor junction, and where at least one of the window layer or the absorber layer is deposited by employing high power pulsed magnetron sputtering, and depositing an electrically conductive film on the semiconductor junction, wherein the electrically conductive film is configured to act as a back electrode layer for the solar cell.

Magnetically enhanced sputtering methods and apparatus are described. A magnetically enhanced sputtering source according to the present invention includes an anode and a cathode assembly having a target that is positioned adjacent to the anode. An ionization source generates a weakly-ionized plasma proximate to the anode and the cathode assembly. A magnet is positioned to generate a magnetic field proximate to the weakly-ionized plasma. The magnetic field substantially traps electrons in the weakly-ionized plasma proximate to the sputtering target. A power supply produces an electric field in a gap between the anode and the cathode assembly. The electric field generates excited atoms in the weakly ionized plasma and generates secondary electrons from the sputtering target. The secondary electrons ionize the excited atoms, thereby creating a strongly-ionized plasma having ions that impact a surface of the sputtering target to generate sputtering flux.

An apparatus for generating sputtering of a target to produce a coating on a substrate with a current density on a cathode of a magnetron between 0.1 and 10 A/cm² is provided. The apparatus comprises a power supply that is operably connected to the magnetron and at least one capacitor is operably connected to the power supply. A first switch is also provided. The first switch operably connects the power supply to the magnetron to charge the magnetron and the first switch is configured to charge the magnetron according to a first pulse. An electrical bias device is operably connected to the substrate and configured to apply a substrate bias.

A magnetron sputtering apparatus suitable for coating on a workpiece is provided. The magnetron sputtering apparatus includes a vacuum chamber, a holder, a magnetron plasma source and a high-power pulse power supply set, wherein the magnetron plasma source includes a base, a magnetron controller and a target. A reactive gas is inputted into the vacuum chamber, and the holder supporting the workpiece is disposed inside the vacuum chamber. The magnetron plasma source is disposed opposite to the workpiece, wherein the magnetron controller is disposed in the base, and the target is disposed on the base. The high-power pulse power supply set is coupled to the vacuum chamber, the magnetron plasma source and the holder, and a high voltage pulse power is inputted to the magnetron plasma source to generate plasma to coat a film on the surface of the workpiece.

Methods for depositing a nanocrystalline diamond layer are disclosed herein. The method can include delivering a sputter gas to a substrate positioned in a processing region of a first process chamber, the first process chamber having a carbon-containing sputter target, delivering an energy pulse to the sputter gas to create a sputtering plasma, the sputtering plasma having a sputtering duration, the energy pulse having an average power between 1 W/cm² and 10 W/cm² and a pulse width which is less than 100 μs and greater than 30 μs, the sputtering plasma being controlled by a magnetic field, the magnetic field being less than 300. Gauss, and delivering the sputtering plasma to the sputter target to form an ionized species, the ionized species forming a crystalline carbon-containing layer on the substrate.

The present invention discloses a TiAlN/TiAlCN multilayer coating of substrate surface and preparing method thereof, wherein a transitional layer is between a substrate and a TiAlN/TiAlCN multilayer coating; the multilayer coating is formed by alternating periodic arrangement of TiAlN films and TiAlCN films; in a period, the thickness sum of the TiAlN films and the TiAlCN films is 1-20 nano; the percentage by weight of C atom in the TiAlCN films is 0.1-5%. The multilayer coating of the present invention has the advantages of high hardness, low internal stress and high tenacity; the cutting efficiency and corrosion resistance of the substrate can be improved, and the service life of the substrate can be prolonged. In the present invention, the multilayer coating is deposited by high power pulse magnetron sputtering technique; the problems that cathode arc ion plating and depositing speed is too fast to prepare a nano epitaxial film and that target poisoning is caused during the procedure for preparing films by DC magnetron sputtering are solved; the nano modulation period is controlled via adjusting the autorotation and revolution speeds of the substrate and adjusting the quantity of targets.

The invention relates to the technical field of thin-film materials and particularly relates to a high-power pulse plasma reinforced composite magnetron sputtering deposition device. The device comprises a vacuum chamber, magnetic control targets, a work rest and a rotary support, wherein the magnetic control targets comprise a high-power pulse magnetron sputtering target and pulse direct-current magnetic control targets, fixed in the vacuum chamber, and are arranged in opposite direction in a right angle, the magnetic field arrangement manners of all magnetic control targets are opposite, and a closed field is formed; the magnetic fields of all magnetic control targets are unbalanced magnetic fields; through the implementation of the structure, the better magnetic field distribution and ion plating effects are achieved, high-quality coating with good coating binding force, compact coating, good mechanical performance, accurate and controllable chemical components can be deposited conveniently and the device is applied to high-speed cutting tools.

The invention relates to an AlCrSiN-based multilayer nanometer composite cutter coating layer and a preparation method thereof, and belongs to the technical field of preparation of cutter coating layers. A cutter basal body of the AlCrSiN-based multilayer nanometer composite cutter coating layer adopts a WC-Co hard allot or high-speed steel; the coating layer structure comprises a Ti metal bonding layer, an AlTiN transition layer and an AlCrSiN main wear resistant layer, wherein the AlTiN transition layer consists of 29-35 at.% of aluminum, 15-20 at.% of titanium, and 47-51 at.% of nitrogen; and the AlCrSiN main wear resistant layer consists of 25-30 at.% of aluminum, 20-25 at.% of chromium, 1-10 at.% of silicon, and 45-50 at.% of nitrogen. The transition layer AlTiN coating layer is prepared by a high-power pulse magnetron sputtering technology; and the AlCrSiN coating layer is prepared by an arc ion plating technology. The AlCrSiN-based multilayer nanometer composite cutter coating layer has the advantages of high hardness, low friction coefficient, low internal stress, high bonding strength and good high-temperature stability; a deposition coating cutter is suitable for cutting a high-hardness steel material under the condition of high speed; and the service life of the cutter can be largely prolonged.

The invention discloses a preparation method of a MoS2 composite thin film with high hardness and loss abrasion on a surface of a substrate. The method comprises the following step: sequentially depositing a metal Ti priming coat, a TiN transitional layer and a Ti/MoS2 composite thin film on the surface of the substrate by using a high power pulse magnetron sputtering technology combined with optimized process conditions to obtain the MoS2 composite thin film which is strong in film binding force and high hardness and has low frictional coefficient and wear rate in various frictional environments. The nano hardness of the composite thin film is over 11GPa, the critical load value is over 60N, and the frictional coefficients in room-temperature air with relative humidity of 30%, 50% and 70%, an N2 atmosphere and a hydraulic oil environment are below 0.055. Therefore, the substrate is effectively protected in frictional reduction, and the composite thin film has a good application prospect.

The invention relates to a nuclear fuel cladding comprising: i) a substrate containing a zirconium-based inner layer, optionally coated with at least one intermediate layer formed by at least one intermediate material selected from among tantalum, molybdenum, tungsten, niobium, vanadium, hafnium or the alloys thereof; and ii) at least one protective outer layer placed on the substrate and formed by a protective material selected from either chromium or an alloy of chromium. The nuclear fuel cladding produced using the method of the invention has improved resistance to oxidation/hydriding. The invention also relates to the method for the production of the nuclear fuel cladding by ion etching of the surface of the substrate and deposition of the outer layer on the substrate with a high power impulse magnetron sputtering method (HiPIMS), as well as to the use thereof to protect against oxidation and/or hydriding.

The invention relates to a nano-composite coating and a preparation technology thereof, and specifically relates to a preparation technology of a CrAlSiN nano-composite coating. The CrAlSiN nano-composite coating is prepared on metal or a hard alloy matrix by adopting a co-sputtering technology of high-power pulse and direct current pulse. Pure metals of Cr, Al and Si (the purities are all 99.99% by weight) are selected to be target materials, wherein a Cr target is selected by the high-power pulse, and an Al target and a Si target are selected by a direct current pulse sputtering. Ar gas is piped in before a film is coated, -800 V bias voltage is adopted, and a substrate is washed by glow for 10-30 min. Then the three target materials are opened, bombard washing is conducted on the surfaces of the substrate and the target materials, and the bias voltage is gradually reduced to -30-100 V. The Al target and the Si target are closed, and a pure Cr transition layer is deposited for 10-40 min. Reactant gas N2 is piped in, the Al target and the Si target are opened, and a CrAlSiN coating is deposited for 120-360 min. According to the high-power pulsed magnetron sputtering CrAlSiN nano-composite coating and the preparation method thereof, the CrAlSiN nano-composite coating is good in overall performance, simple in preparation technology, controllable in component and good in repeatability; and industrialized production is easy.

Method and apparatus for physical vapour deposition (PVD) and in particular high power impulse magnetron sputtering (HIPIMS) deposition is described. The present apparatus and process provide for the creation of a weaker magnetic field in the region of the cathode which reduces the confinement of a significant part of the plasma near the target surface. By weakening the magnetic field in the region of the target, the deposition rate of materials at a substrate has been found to increase by a factor of 9 relative to that of conventional HIPIMS processes employing typical magnetic field strengths.

The invention provides a preparation method of matrix surface nano compound Me-Si-N (Me=Ti, Cr, Zr, W or the like) superhard coating. The preparation method utilizes the high-power pulse magnetron sputtering (HIPIMS) technology, through optimizing technology parameters, to prepare the Me-Si-N nano compound superhard coating by magnetron sputtering reactions. Compared to the prior art, the technology can obtain a superhard Me-Si-N nano compound coating with low surface roughness, and the preparation method is a preparation technology with a good application prospect.

The invention relates to the technical field of thin film materials, in particular to a multifunctional fully-automatic ion-plating machine for the deposition of a cutting tool coating. The machine comprises a vacuum chamber, bipolar pulse magnetron sputtering targets, a rectangular anode layer gas ion source, a high-power pulse magnetron sputtering source, a bias power supply, cathode arc sources, a workpiece rack and a support, wherein the bipolar pulse magnetron sputtering targets, the anode layer gas ion source, the high-power pulse magnetron sputtering source, the bias power supply and the cathode arc sources are controlled through five groups of independent switches respectively. Due to the adoption of the structure, pure metal, alloy and reaction film layers can be prepared, and multi-element and multilayer nanometer composite coatings and oxygen-containing coatings can also be prepared to meet the requirements of metal cutting tools with different shapes and sizes on high-speed machining.

The invention relates to an ionization-rate-controllable coating device based on high-power impulse magnetron sputtering, which comprises a vacuum sputtering system, a low-voltage direct-current power system, a high-voltage impulse power system, a PLC (Programmable Logic Controller) central control system and a computer, wherein the low-voltage direct-current power system provides a low-voltage current for the vacuum system, and the high-voltage impulse power system provides a high-voltage impulse current for the vacuum system; the PLC central control system is used for controlling the vacuum system, low-voltage direct-current power system and high-voltage impulse power system; and the PLC and computer are used for transmitting and controlling data. The invention effectively shortens the delay time of the impulse current due to the preset direct-current voltage, effectively ensures the film deposition rate by coupling the direct-current magnetron sputtering, and establishes a plasma ionization-rate-adjustable HIPIMS (high-power impulse magnetron sputtering) technique, thereby providing technical support for research in related science.

The invention discloses a metal bipolar plate high-electric-conductivity and corrosion-resistance protective coating layer and a preparation method and application thereof. The preparation method of the metal bipolar plate high-electric-conductivity and corrosion-resistance protective coating layer comprises the following steps: with a chromium target as the target, a high-power pulse magnetron sputtering technology is adopted to deposit a chromium transition layer on the surface of a metal bipolar plate; with a graphite target as the target, a direct-current magnetron sputtering technology isadopted to deposit an amorphous carbon layer on the surface of the chromium transition layer to obtain the metal bipolar plate high-electric-conductivity and corrosion-resistance protective coating layer; and process conditions adopted by the direct-current magnetron sputtering technology comprises the sputtering source center magnetic field intensity of 40-60 mT, the edge magnetic field intensity of 10-20 mT and the power of 0.8-1.0 kW. The provided chromium transition layer is smooth in surface and compact in internal structure, and can effectively improve the film base bonding strength; and meanwhile, through optimization of an amorphous carbon layer preparation process, the amorphous carbon layer achieves excellent electric conductivity and corrosion resistance, and can permanently and effectively protect the metal bipolar plate.

The invention discloses a method for depositing a film through high ionization rate high power pulse magnetron sputtering, relates to the technical field of film materials, and mainly solves the problems that the existing target is low in ionization rate, the plasma is nonuniform and the film uniformity is poor. The method comprises the following steps: I, cleaning a chamber, and fixing a test sample on a planet platform; II, placing the planet platform in the sealed chamber, vacuumizing the chamber, and removing moisture on the test sample and absorbed air; III, applying back bias voltage on the test sample, and feeding high-purity Ar; IV, feeding Ar and N2 in the chamber, and applying impulse voltage on a sputtering target for surface coating; V, adopting a stepping motor to control the motion track of the planet platform so as to control film coating; VI, taking the test sample out when the temperature in the vacuum chamber is reduced to the room temperature. According to the invention, target magnetic field control during film preparation and target voltage applying form during film coating are changed, so that the film thickness and density are easy to control, and the binding force and the uniformity are high.

The invention discloses a method and equipment for preparing ultra-hard DLC (Diamond-like Carbon) coatings through PVD (Physical Vapor Deposition) and HIPIMS (High Power Impulse Magnetron Sputtering). By adopting a multilayer film compositing technology and using a PVD process and an HIPIMS method, and through cathode and anode bias adjustment and acetylene gas flow control, and the design of the equipment for preparing the DLC coatings in an industrialized manner, that the ultra-hard DLC coatings are prepared by the equipment on surfaces of workpieces is achieved, and the coatings are ultra-high in hardness, high in friction resistance, high in wear resistance and high in self-lubricating performance. According to the method and equipment, provided by the invention, the coating process is simple; conditions for compositing the coatings are accurate and controllable; the film formation quality is high; the performance is stable; the product yield is high; and the cost is low. The coatings are ultra-hard and excellent in self-lubricating performance and the wear resistance. The equipment for the coatings is provided with four sets of large-scale coating units, is stable and reliable in production quality, can be applied to mass production, is convenient for lowering the manufacturing cost and achieves industrialization.

The invention provides a method for improving the metalized surface performance of a ceramic workpiece. A metalized layer with good combining force, high density and strong corrosion resistance of a surface prepared film base is obtained on the ceramic workpiece surface by applying a high-power pulse magnetron sputtering technology. According to the invention, the process is environment-friendly; the controllability is good and a plated film layer can meet European Union RoHS (Restriction of Hazardous Substances) standards; the metalized layers of different materials can be obtained according to requirements and the adaptability of sputtering materials is wide without limitation by high and low smelting points of the material; the high ionization rate of the sputtering materials can greatly improve the combining strength, the density and the uniformity of the film base of the metalized layer, and the electric performance and the corrosion resistance of a ceramic workpiece are improved.

A method for depositing at least one stable, transparent and conductive layer system on chalcopyrite solar cell absorbers. The at least one stable, transparent and conductive layer system may be formed via ionizing PVD (physical vapor deposition) technology by using either high power pulsed magnetron sputtering (HPPMS) or high power impulse magnetron sputtering (HIPIMS).

The invention provides a deposition method adopting combination of arc ion plating and high power pulsed magnetron sputtering, belongs to the technical field of material surface treatment, and aims to solve the problems of large particles caused by the fact that low-melting-point pure metal or a multi-element alloy material and a non-metal material, especially a semiconducting material and an insulating material, are taken as target materials to be applied in a traditional arc ion plating method, limitation of use extension of arc ion plating target materials, low ionization rate and low thin film deposition efficiency of a traditional magnetron sputtering technology as well as unstable discharging of conventional high power pulsed magnetron sputtering. The method comprises steps as follows: step one, a to-be-coated workpiece is placed on a sample table in a vacuum chamber, a related power supply is switched on; step two, thin film deposition is performed and comprises steps as follows: when the vacuum degree in the vacuum chamber is lower than 10<-2> Pa, working gas is introduced, gas pressure is adjusted, the related power supply is switched on, after the target surface is cleaned, a synchronous waveform matching device is adopted to adjust waveforms output by a grid bias power supply and a high power pulsed magnetron sputtering power supply, required technological parameters are set, and thin film deposition is performed.

The invention relates to a surface metallization method for foamed plastic by adopting high-power pulse magnetron sputtering and belongs to the technical field of material surface engineering. The surface metallization method for the foamed plastic by adopting high-power pulse magnetron sputtering comprises the following steps of: firstly carrying out pre-treatment of surface sealing, cleaning, drying and distressing on the surface of foamed plastic, then loading samples, vacuumizing, and degassing; carrying out pre-sputtering to clean a foamed plastic workpiece and sputtering a target material; depositing a metal coating by adopting high-power pulse magnetron sputtering, wherein a metal coating with high ionization rate is deposited on the surface of the foamed plastic workpiece at a low temperature by controlling pulse configuration, frequency, charging voltage and sputtering/cooling time, and a metal coating with smooth surface, compact structure and high cohesion between film and substrate material is prepared; and finally cooling, taking away the foamed plastic workpiece, and inspecting properties of the metallized foamed plastic such as surface appearance, hardness and cohesion between film and substrate material. The surface metallization method for the foamed plastic by adopting high-power pulse magnetron sputtering has the advantages that the surface metallization method is applicable to various metallized coatings; the coating is smooth and compact in surface and high in cohesion between film and substrate material; the sputtering temperature and the deposition temperature are low, and a foamed plastic substrate can not deform; and the surface metallization method is safe and environment-friendly, and no chromic acid reagent which contains Cr<6+> and is related in a chemical plating process is used.