78results about How to "Improve the binding force of membrane base" patented technology

The invention discloses a preparation method of a photovoltaic glass surface antireflection film, which is characterized by comprising the following steps of firstly, preparing inorganic-organic hybrid silicasol; secondly, coating; thirdly, hydrophobic treatment; and fourthly, solidification treatment. Compared with the prior art, the invention has the advantages that the film-substrate cohesion between an antireflection film and substrate photovoltaic glass is stronger, and therefore, the wiping resistance of the coated photovoltaic glass surface antireflection film is enhanced; a layer of hydrophobic group with low surface energy is formed on the surface of the antireflection film, and therefore, the corrosion of moisture to a film microstructure is reduced, and the long service life of the coated photovoltaic glass is ensured; and the invention has low whole process cost and simple technical route and is suitable for industrial and large-scale application.

The invention discloses a Ti/TiN/TiAlN composite coating on the surface of a cutting tool material and a preparation method of the Ti/TiN/TiAlN composite coating. The method comprises the following steps of: (1) cleaning the surface of the cutting tool material; (2) sequentially coating a Ti layer and a TiN layer through ion coating equipment; and (3) coating a TiAlN layer through magnetron sputtering equipment to obtain the Ti/TiN/TiAlN composite coating. The Ti/TiN/TiAlN composite coating has a relatively smooth surface, and is large in film base binding force and high in abrasion resistance; the service life of a tool can be prolonged; a coating film is high in processing quality; the Ti/TiN/TiAlN composite coating is simple in preparation process, easy to operate and suitable for batch production; automatic electric and mechanical control is adopted in a film coating process.

The invention discloses a preparation method for a super-hydrophobic metal surface. The method comprises the following steps: constructing a micrometer structure on the surface of a frequently used engineering material (such as copper, iron, stainless steel, nickel, aluminum, an aluminum alloy and a high-molecular section covering the above-mentioned metal through chemical plating) by using an electrocoppering process; then constructing a nanometer structure by using a chemical silvering process; and carrying out modification with low-surface energy substances like octadecanethiol so as to obtain excellent and stable super-hydrophobicity. The method has a wide application scope and can be used on pure metal, alloys and metalized high-molecular sections; an obtained surface has stable and reliable surface performance, strong film-substrate bonding force and good corrosion resistance, especially good acid resistance, can be extensively applied in fields like self-cleaning, water prevention and dehumidification, corrosion prevention, fluid drag reduction, frost prevention and condensation and heat exchange, and has an industrialization value.

The invention relates to metal surface treatment, in particular to surface treatment of low-temperature iron-base alloy molds of sliding components, bearings and the like and provides a diamond-like carbon film of a gradient structure and a preparation method of the diamond-like carbon film of the gradient structure. The diamond-like carbon film of the gradient structure is provided with a coating structure comprising a pure metal layer, a first gradient transition layer, a metal nitride layer, a second gradient transition layer, a tungsten carbide, a third gradient transition layer and a surface layer. The surface layer is a diamond-like layer or a silicon-containing type diamond layer. According to the diamond-like carbon film of the gradient structure, gradient control over elasticity modulus and hardness is achieved through ingredient gradient control between all the layers, and therefore the film-substrate cohesion force and the delaminating resistance of the coating are greatly improved.

The invention discloses an accident fault tolerance nuclear fuel cladding coating for a zirconium alloy surface, and belongs to the technical field of accident fault tolerance nuclear fuel cladding coating. A first protection layer is mounted on the outer surface of zirconium alloy, a second protection layer is mounted on the outer surface of the first protection layer, and a third protection layer is mounted on the outer surface of the second protection layer. According to the accident fault tolerance nuclear fuel cladding coating for the zirconium alloy surface, through advantages of a laminated construction and compositing multiple coatings, a Cr coating can effectively improve the attaching force between the coating and a zirconium alloy substrate, meanwhile, the accident fault tolerance protection capacity is achieved, a CrTiAlN coating has the good high-temperature oxidation resistance property, and can be normally used in the normal state, and the high-temperature working condition, a CrN coating has the good corrosion resistance, and meets the long-term service under the hot water corrosion working condition, and the laminated composite protection coating can comprehensively improve the stability and the safety of accident fault tolerance nuclear fuel cladding.

The invention discloses a method for prolonging the service life of a diamond grinding wheel rod of polished optical glass based on the ion beam technology. According to the method, an ultra-thick and ultra-hard (AlTi)1-xNx/AlTiCN/TiAl/(ZrAl)1-xNx composite film which is high in friction coefficient and good in toughness is deposited on the surface of silicon carbide through an ion implantation technique and a magnetic filtration deposition technique. A method for preparing the (AlTi)1-xNx/AlTiCN/TiAl/(ZrAl)1-xNx composite film comprises the steps that a metal cathode filtered cathodic vacuum arc (FCVA) system is adopted, and a workpiece is cleaned on the surface of the grinding wheel rod through high-energy large-beam metal ion beams; then a metal vacuum vapor ion source (MEVVA) method is adopted, and a metal "pinning layer" capable of improving the film-base combination force is injected into the surface of the workpiece; sine or cosine modulated deposition is conducted on the gas inlet amount on the metal"pinning layer" through a magnetic filtration filtered cathodic vacuum arc (FCVA) method, and the ultra-hard thick (AlTi)1-xNx/AlTiCN/TiAl/(ZrAl)1-xNx composite film which is good in toughness is obtained; and the modulation period is repeated till the total thickness of the (AlTi)1-xNx/AlTiCN/TiAl/(ZrAl)1-xNx composite film reaches 10-30 microns. By the adoption of the method, the (AlTi)1-xNx/AlTiCN/TiAl/(ZrAl)1-xNx composite film deposited on the workpiece is good in toughness and quite high in microhardness, and the service life of the grinding wheel rod can be prolonged by 2-5 times.

The invention provides a coating hard alloy matrix having high film-based binding force with metal nitride on the basis of design principles of an alloy material for phase lattice mismatch regulation at a film-based interface and regulation effectiveness guarantee and a preparation method of the alloy material. The hard alloy matrix is made of WC-Co-based alloy. WC-based hard phase and Co-based binding phase lattice constants are regulated respectively by adding Mo2C and Ru into the alloy at the same time to promote metal nitride film nucleation and stabilize interface phase crystal structure so as to realize effective regulation of phase lattice mismatch at the film-based interface; each of mass ratio of Mo2C and Co in the WC-Co-based alloy and mass ratio of Ru and Co is (10-15):100, grain size of the WC-based hard phase is smaller than 1.5um, and Co-based binding phase is of a close-packed hexagonal structure. The hard alloy matrix is prepared by adopting processes of wet milling, drying and granulating, pressing for forming and CO-containing pressurizing and sintering.

The invention discloses a preparation method and equipment of a patterned electrostatic chuck. The preparation method comprises the following steps that an ultra-large size (greater than 300 mm) ceramic sheet (AlN or Al2O3) is selected as a substrate, a patterned organic adhesive mask is printed on the substrate, and a high resistivity, high hardness, wear resistance and ion erosion resistance DLCfilm layer is deposited by utilizing an ion beam technology; a deposition method comprises the following steps that a high-energy metal vacuum vapor ion source (MEVVA ) is adopted, a metal element isinjected into the substrate to form a graded pseudo diffusion layer, and then a 90-degree ultra-wide magnetic filtration metal cathode vacuum arc (FCVA) technology is adopted, and a metal transitionlayer is deposited; a single T-shaped magnetic filtration cathode vacuum arc (FCVA) is adopted on the metal transition layer, and a DLC film layer with high sp2 content is obtained through the deposition; and a double-T-shaped magnetic filtration cathode vacuum arc (FCVA) is utilized on the DLC film layer with the high-sp2-content, and a super-hard DLC film layer is obtained through the deposition; and the resistance of the film layer can reach 10-50 megohm, and the hardness can reach 80 Gpa or above. According to the method and the equipment, the electrostatic chuck is enabled to have excellent wear resistance, and the service life is prolonged.

The invention provides a boron-doped diamond/graphite composite electrode. The boron-doped diamond/graphite composite electrode comprises a graphite base body as well as a silicon-carbon compound layer and a boron-doped diamond layer which are sequentially stacked on the graphite base body. A thermal expansion coefficient of the silicon-carbon compound is within an intermediate value range of thethermal expansion coefficient of graphite and boron-doped diamond, and therefore, the silicon-carbon compound is taken as an intermediate transition layer, and difference of thermal expansion coefficients of layers of the boron-doped diamond/graphite composite electrode is reduced. Influences, on film-based binding force, of thermal residual stress are finally reduced, and film-based binding forceof the boron-doped diamond/graphite composite electrode is improved. The invention further provides a manufacturing method for the composite electrode, and the manufacturing method is simple in process, and is low in cost; and the silicon-carbon compound layer is deposited for avoiding pollution on a chamber, so that the industrial applicability is very great.

The invention relates to a doped sulfide composite film, a preparing method of the doped sulfide composite film and a workpiece comprising the doped sulfide composite film. The doped sulfide compositefilm is composed of doped elements and sulfide, wherein the doped elements are Ce and Al, and the sulfide is WS2 or MoS2; and the doped sulfide composite film includes, by mass, 6.11%-14.27% of Ce, 1.13%-10.26% of Al and the balance sulfide. The mechanical performance of the doped sulfide composite film is improved, and therefore good wear-resisting performance can be shown; and the crystal strength of the Ce and Al co-doped sulfide base composite film is high, and the elasticity and elasticity modulus are improved by 300% or higher.

The invention discloses the magnetron sputtering-laser heating composite diffusion coating technology and the equipment, by utilizing the magnetron sputtering and a laser heating device, a single diffusion coating layer or a composite diffusion coating layer with a diffusion layer and a sedimentary layer or the diffusion layer plus the sedimentary layer which comprises metal element and nonmetal element is formed on the surface of a conducting workpiece. The invention has the advantages that by utility a magnetron sputtering target, sufficient pre-diffusing alloy element can be provided; by utilizing the laser heating, the diffused material can heated to high temperature in a short time and the diffusing speed is greatly increased; the DEG Cree of vacuum of the metal for diffusing is increased at least one order of magnitude compared with the common alloying method, and the surface quality of the diffused workpiece can be greatly improved; the diffusion coating can be performed continuously, and the production in large area and large scale can be realized.

The invention includes following structures and steps: using YSZ and RCO ceramics target as well as using monocrystalline silicon MgO and Ni-YSZ or Ni-RCO anode plate as substrate, distance between target and substrate as 30-80mm; vacuum degree 1X10-4-1X10-5 Pa, substrate temperature 300 deg.C-800 deg.C; ratio of gas pressure between oxygen and argon as 5%-40%; Thickness of each film is 10-200 nano, and number of layer is larger than or equal to three, the invention also contains other technical parameters. Multiple layers of nano film provides advantages of raising conductivity of oxyanion 10%-50%, optimizing fuel cell performance. The disclosed sputtering technique has features of fast, and high quality.

The invention relates to a doped graphite-like composite film, a preparation method thereof and a component comprising the doped graphite-like composite film. The doped graphite-like composite film comprises doped elements and graphite-like, wherein the doped elements include, by mass, 6.47-13.49% of doped element cerium, 1.21-12.26% of doped element aluminum, and the balance the graphite-like. The mechanical performance of the doped graphite-like composite film is enhanced, and the doped graphite-like composite film shows the excellent wear-resisting performance. The crystallization strengthof the cerium and aluminum co-doped doped graphite-like composite film is high, and the hardness and elasticity modulus of the cerium and aluminum co-doped doped graphite-like composite film are bothimproved by 10% or more.