565 results about "Oxide coating" patented technology

The invention relates to the technical field of multi-sensor fusion, in particular to a detection method and system for silicon steel magnesium oxide adhesiveness. Particulate matter matching analysis is carried out based on the corresponding magnesium oxide coating particle condition and the silicon steel surface condition; the particle bonding effect is evaluated based on the particle matching analysis result and the fluidity condition of the coating in the scene, and the magnesium oxide adhesion quality is predicted based on the evaluation result of the particle bonding effect and the shaking condition of the equipment in the coating process. The characteristics of the coating, the surface condition of the silicon steel, the coating environment, dynamic factors in the coating process and the like are comprehensively considered, the adhesiveness of magnesium oxide is evaluated and analyzed from multiple dimensions, and the multi-dimensional analysis method provides a more scientific and more accurate evaluation means for the silicon steel coating technology.

The invention provides a positive pole piece, a preparation method thereof and a sulfide all-solid-state battery. The positive pole piece comprises a positive current collector and a positive material layer arranged on the surface of the positive current collector, the positive electrode material layer comprises a modified positive electrode active material, an antioxidant, a sulfide electrolyte material, a conductive agent and a positive electrode binder, the modified positive electrode active material comprises an inner core and an oxide coating layer arranged on the surface of the inner core, and the inner core is a lithium-containing positive electrode active material. When the positive electrode plate containing the antioxidant and the modified positive electrode active material provided by the invention is applied to the sulfide all-solid-state battery, the synergistic effect of the antioxidant and the modified positive electrode active material can be exerted, so that the rate capability and the cycling stability of the sulfide all-solid-state battery are improved.

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 the technical field of coating preparation, in particular to a spraying process of a compact yttrium oxide coating, which comprises the steps of pretreatment, powder activation, matrix surface modification, meltallizing spraying, cooling curing, de-shielding treatment and post-cleaning. Yttrium oxide powder is activated through low-temperature plasma, sand blasting parameters and a high velocity oxy-fuel spraying process are optimized, the porosity of the coating is remarkably reduced to 1.5% or below, and the hardness is improved to 500 HV0.3. Internal stress is reduced in a sectional cooling mode, and balance of coating performance and economical efficiency is achieved in combination with a parameter optimization algorithm based on particle deposition dynamics. The preparation method can meet the requirement of the high-end semiconductor manufacturing field on a high-performance protective coating, and solves the problem of high porosity of a traditional process.

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 invention relates to the technical field of iron-nickel alloy foil preparation, and discloses a low-curl iron-nickel alloy foil suitable for an all-solid-state battery and a preparation method of the low-curl iron-nickel alloy foil. The electrolyte solution is added into an electrolytic cell, and current is applied to the electrolyte solution; the method comprises the following steps: depositing an iron-nickel alloy on the surface of a cathode roller, stripping to obtain an iron-nickel alloy foil, carrying out electrophoresis on the iron-nickel alloy foil by using a magnesium oxide electrophoresis solution in an electrophoresis cell to form a magnesium oxide coating on the iron-nickel alloy foil, cleaning with an acid solution, and carrying out electrochemical fluorination treatment on the iron-nickel alloy foil to obtain the magnesium oxide coating on the iron-nickel alloy foil. Forming a fluorinated layer on the magnesium oxide coating; and the iron-nickel alloy foil is subjected to heat treatment at the temperature not exceeding 600 DEG C in a heat treatment chamber, and the iron-nickel alloy foil is obtained after cooling. The high-quality iron-nickel invar iron-nickel alloy foil can solve the curling problem and is suitable for all-solid-state batteries.

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 is in the field of nanostructure synthesis. Provided are highly luminescent nanostructures, particularly highly luminescent quantum dots, comprising a nanocrystal core / shell and a thin metal oxide on the outer shell of the nanostructure. Also provided are methods of preparing the nanostructures, films comprising the nanostructures, and devices comprising the nanostructures.

The invention relates to the technical field of magnesium oxide activity detection, in particular to a magnesium oxide activity rapid detection method and system based on data fusion, and the method comprises the following steps: analyzing the activity attenuation trend of magnesium oxide in a storage period based on activity characteristic data and storage environment data of a magnesium oxide sample; analyzing the adhesion efficiency of the magnesium oxide coating silicon steel based on the silicon steel substrate state data, the environmental stress data and the activity attenuation trend analysis result of the magnesium oxide in the storage period; evaluating the service reliability of the magnesium oxide coating by combining an activity attenuation trend analysis result of the magnesium oxide in the storage period and an adhesion efficiency analysis result of the magnesium oxide coating silicon steel; and carrying out replacement early warning on the magnesium oxide according to the service reliability evaluation result of the magnesium oxide coating. The influence of the active state of magnesium oxide under different storage durations on the performance of the silicon steel coating can be accurately evaluated, the quality stability of silicon steel products is guaranteed, and waste of magnesium oxide materials is reduced through accurate early warning.

The invention relates to the technical field of semiconductors, and discloses a strongly-oriented yttrium oxide coating and a preparation method thereof.The strongly-oriented yttrium oxide coating is arranged on the surface of a base body, and the strongly-oriented yttrium oxide coating is of a (222)-oriented face-centered cubic phase structure which is not smaller than 70 vol%. According to the strongly oriented yttrium oxide coating provided by the invention, the plasma etching resistance of the yttrium oxide coating can be improved.

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.

The invention relates to the technical field of high-temperature-resistant composite coatings, in particular to an atomic-scale complex-phase high-entropy oxide coating material and preparation and application thereof. The preparation method comprises the following steps: firstly, dissolving Mg2AlO4 and transition metal alloy powder, mixing, and carrying out ball milling to obtain spinel-structure high-entropy oxide precursor powder; then carrying out freeze drying treatment on the spinel structure high-entropy oxide precursor powder, and then carrying out sintering treatment to obtain spinel structure high-entropy oxide powder; dissolving metal salt, and blending to obtain a mixed solution; and finally, uniformly mixing the spinel-structure high-entropy oxide powder with the mixed solution, carrying out solvothermal reaction, and carrying out post-treatment to obtain the atomic-scale complex-phase high-entropy oxide coating material. The coating material provided by the invention has high-stability infrared radiation performance and can resist high-temperature oxidation.

The invention relates to a preparation method and application of a sodium ion battery composite positive electrode material, and the preparation method comprises the following steps: (1) dissolving a Ni source and an M1 source in water to obtain a mixed salt solution, adding a precipitator and a complexing agent for reaction, separating a solid, and drying to obtain precursor powder NixM1y (OH) 2; and (2) uniformly mixing the precursor powder NixM1y (OH) 2 with a sodium source and an M2 source, and carrying out calcination treatment and tempering treatment to obtain the sodium ion battery composite positive electrode material, the sodium ion battery composite positive electrode material comprises a layered oxide core and a Ni-containing spinel oxide coating layer. The preparation method is simple to operate and easy to realize large-scale production; the composite positive electrode material prepared by the method is free of NiO impurities, and the coating layer containing the Ni element can further improve the structural stability of the composite positive electrode material, so that the battery containing the composite positive electrode material has high rate performance and also has high energy density and excellent cycle performance under high voltage.

Methods for producing durable oxide coatings on various substrates are provided. The method involves depositing an oxidizable metal layer, such as zirconium, aluminum, titanium, magnesium, or niobium, onto a substrate using physical vapor deposition techniques, including sputtering, evaporation, or cathodic arc deposition. The oxidizable metal layer is subsequently treated using anodization or micro-arc oxidation (MAO) to convert at least a portion of the layer into a robust oxide coating. The MAO process employs high voltages and current densities in an electrolytic bath containing water, salts, and additives to enhance surface properties. The resulting oxide layer provides exceptional hardness, corrosion resistance, thermal stability, and aesthetic finishes, including a black appearance. The method is compatible with diverse substrates, including metals, alloys, and plastics, enabling applications in aerospace, automotive, consumer electronics, and decorative industries. This approach overcomes limitations of traditional coatings by delivering tailored, high-performance surfaces.

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.

Lanthanum perovskite oxide coated high nickel ternary positive electrode material and preparation method thereof, wherein the positive electrode material is a spherical particle formed by coating a high nickel ternary positive electrode material with a lanthanum perovskite oxide coating layer at a mass ratio of 0.01 to 0.03:1; the chemical formula of the lanthanum perovskite oxide is La z Ca 1‑z CoO3, where 0 < z ≤ 1; the chemical formula of the high nickel ternary cathode material is LiNi x Co y Mn (1‑x‑y) O2, wherein 0.80≤x≤0.96, 0.01≤y≤0.10, and 1-x-y>0. The preparation method comprises ball-milling a lanthanide perovskite oxide with a high-nickel ternary cathode material, followed by low-temperature sintering under a protective atmosphere. The cathode material of the present invention exhibits high lithium ion and electron conductivity during charge and discharge, is highly reversible, has a stable structure, and exhibits excellent rate capability and cycle stability. The method of the present invention is simple, low-cost, and suitable for industrial production.

The invention provides a positive active material and a preparation method thereof, a positive pole piece and a sodium ion secondary battery, and particularly relates to the technical field of sodium ion secondary batteries. The general formula of the positive electrode active material is Na < 4 > Fe < 3-x-y > M < y > (PO4) < 2 > P < 2 > O < 7 > (at) RaOb; wherein the value range of x is 0.03 to 0.27, and the value range of y is 0 to 0.27 and is not 0; m is at least one of transition metal elements; raOb is a metal oxide. According to the positive electrode active material provided by the invention, transition metal elements are introduced for doping, so that the band gap width of the material is effectively reduced, and the ionic conductivity of the material is remarkably improved; and meanwhile, a metal oxide surface coating technology is adopted, so that the energy density and the cycling stability of the material are greatly improved. Through the synergistic effect of transition metal element doping and metal oxide coating, the positive electrode active material shows excellent electrochemical performance.

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 an SLM (selective laser melting) forming method of an In718 high-temperature alloy material, which comprises the following steps: selecting 15-35 mu m spherical powder, and carrying out ultrasonic screening, plasma activation and 50-100nm aluminum oxide coating modification to improve wettability and oxidation resistance; in an inert gas cabin, a platform is preheated at the temperature of 100-150 DEG C, and a pre-tightening layer with the density larger than or equal to 98% is formed through vibration auxiliary powder laying; a pulse fiber laser is adopted to dynamically modulate parameters, a thin-wall area and a solid area are matched with a spiral scanning path, and the cooling rate of a molten pool is reduced by 30%-50%; a molten pool is monitored through dual-wavelength infrared temperature measurement and a high-speed CCD, and laser frequency compensation and argon blowing stable convection are triggered; constructing a three-layer temperature gradient; by means of the method, the density and the high-temperature performance of the formed part are improved, and the method is suitable for manufacturing of aerospace complex structural parts.

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 relates to a method for producing a glass pane having an anti-fogging structure, comprising the following steps: • - providing a surface to be structured, the surface being at least a portion of a glass pane or a portion of a glass pane coated with a transparent oxide coating, • - introducing an anti-fogging structure into the portion of the surface of the glass pane by laser interference structuring with a pulsed laser in such a way that at least two laser beams are made to interfere with one another so that a pattern that is determined by the interference and has depressions with a depth of < 200 nm is created, any coating having a lower thickness than the depth of the structuring depressions. • - In the case of an uncoated glass pane, coating the structured portion with a transparent oxide coating, the coating having a lower thickness than the depth of the structuring depressions made in the surface. • The invention also relates to a glass pane produced in this way and having an anti-fogging structure and to the use thereof.

The invention discloses an aramid fabric as well as a preparation method and application thereof. Comprising an aramid fabric substrate; a graphene hydrophobic layer I and a graphene hydrophobic layer II are respectively arranged on two surfaces of the aramid fabric substrate; a nano aluminum oxide coating is arranged on the surface of the graphene hydrophobic layer I. The preparation method comprises the following steps: firstly, arranging graphene hydrophobic layers on two surfaces of an aramid fabric substrate; and a nanometer aluminum oxide coating is arranged on the surface of one graphene hydrophobic layer. A Janus structure is formed by the nanometer aluminum oxide coating (hydrophilic layer) and the graphene hydrophobic layer, and the excellent dual functions of passive radiation cooling and sweat directional transmission / evaporation are achieved.

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 a double-heat-conduction high-temperature heat pipe which is provided with a composite capillary core formed by weaving low-heat-conduction coating stainless steel wires and conventional stainless steel wires so as to form evaporation areas and liquid supplementing areas which are distributed alternately. Wherein the evaporation area is a conventional stainless steel wire mesh, and the liquid supplementing area is a stainless steel wire mesh coated with a low-heat-conduction ceramic coating. Through composite weaving of the low-heat-conduction coating silk screen and the conventional silk screen, the evaporation function and the liquid supplementing function are separated from the source, the problem of heat pipe failure caused by the capillary limit and the boiling limit is solved, and physical separation of the evaporation function and the liquid supplementing function is achieved. According to the scheme, through material innovation (boron nitride-yttrium oxide coating) and structure optimization (alternate weaving of pores), the capillary limit and the boiling limit are remarkably improved, meanwhile, the heat pipe is endowed with local failure redundancy capacity, and a high-reliability heat management solution is provided for high-temperature application (such as nuclear reactors and spacecrafts).

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.