66results about "Liquid application" patented technology

The invention provides a flexible electromagnetic shielding film and a preparation method thereof. The preparation method comprises the following steps: mixing metal gallium and metal indium in a preset proportion to prepare a gallium-indium alloy; the preparation method comprises the following steps: putting a preset mass of gallium-indium alloy into an isopropanol solution, and treating through an ultrasonic cell disruption system to obtain a liquid metal particle suspension; stirring magnetic functional nanoparticles, an electrostatic spinning high-molecular elastomer and a solvent at normal temperature for a preset time to obtain an electrostatic spinning homogeneous solution; treating the electrostatic spinning homogeneous solution by adopting an electrostatic spinning process to obtain a magnetic nanofiber membrane; and spraying the liquid metal particle suspension onto the magnetic nanofiber membrane by adopting an electrostatic spraying process to obtain the flexible electromagnetic shielding film. According to the flexible electromagnetic shielding film and the preparation method thereof, the problem that the stability of an existing shielding material is reduced under the stretching effect can be solved.

A thin coupling inductor, a manufacturing method thereof and a power supply module are provided. The thin coupling inductor comprises a first assembly, a first magnetic core and a second magnetic core; the first assembly comprises a first winding main body, a second winding main body and a third magnetic core combination; and the first magnetic core and the second magnetic core have a thin-layer composite structure. The manufacturing method comprises the steps that a third magnetic core combination and a winding main body are arranged in the frame, and the PP material is pressed to form a stack body. The power supply module comprises a thin coupling inductor, a first switching element, a second switching element, an input capacitor and an output capacitor. The control signals of the first switching element and the second switching element are 180 degrees out of phase.

Methods and systems for producing iron from an iron-containing ore and removing impurities found in the iron-containing ore are disclosed. For example, a method for producing iron comprises providing a feedstock having an iron-containing ore and one or more impurities to a dissolution subsystem comprising a first electrochemical cell; producing an iron-rich solution, in the dissolution subsystem; treating the iron-rich solution to remove at least a portion of one or more impurities by raising a pH of the iron-rich solution from an initial pH to an adjusted pH thereby precipitating at least a portion of the one or more impurities in the treated iron-rich solution; delivering the treated iron-rich solution to an iron-plating subsystem having a second electrochemical cell; second electrochemically reducing at least a first portion of the transferred formed Fe2+ ions to Fe metal; and removing the Fe metal from the second electrochemical cell thereby producing iron.

Methods and systems for producing iron from an iron-containing ore and removing impurities found in the iron-containing ore are disclosed. For example, a method for producing iron comprises providing a feedstock having an iron-containing ore and one or more impurities to a dissolution subsystem comprising a first electrochemical cell; producing an iron-rich solution, in the dissolution subsystem; treating the iron-rich solution to remove at least a portion of one or more impurities by raising a pH of the iron-rich solution from an initial pH to an adjusted pH thereby precipitating at least a portion of the one or more impurities in the treated iron-rich solution; delivering the treated iron-rich solution to an iron-plating subsystem having a second electrochemical cell; second electrochemically reducing at least a first portion of the transferred formed Fe2+ ions to Fe metal; and removing the Fe metal from the second electrochemical cell thereby producing iron.

The present invention presents a method for reducing Hysteresis core loss and Eddy current core loss for magnetic components or materials integrating a porous insulation layer and the resulting apparatus. A metallic layer is formed, and a porous insulation layer is deposited. The insulation deposition is followed by the formation of an ink coverage layer which seals the voids of the porous insulation layer so that they become gaps. The ink coverage layer may be built upon to form subsequent component layers. The result is a component with a gapped porous insulation layer where the voids increase the insulation the porous insulation layer provides. This increases the directional impedance of the magnetic material or core while retaining the thinness of the layers, both insulation and metallic, that the use of porous insulation layers allows.

The invention discloses an inductor. The inductor comprises a magnetic body, a plurality of one-piece coils, an electrode structure and a protection structure. The magnetic body has a bottom surface. The plurality of single-piece coils are embedded in the magnetic body and are arranged at intervals. Each one-piece coil has a first end portion and a second end portion exposed from the bottom surface. The electrode structure is arranged on the bottom surface of the magnetic body and comprises a plurality of first electrodes and a plurality of second electrodes. The plurality of first electrodes are arranged at intervals and electrically coupled to the first ends of the plurality of one-piece coils, respectively. The plurality of second electrodes are arranged at intervals and electrically coupled to the second ends of the plurality of one-piece coils, respectively. The protection structure is arranged on the bottom surface of the magnetic body. The protection structure separates the plurality of first electrodes from the plurality of second electrodes.

The present invention relates to an aluminum alloy disc blank for a magnetic disc, characterized by being formed of an aluminum alloy containing Mg: 3.40 to 3.90 mass%, the balance consisting of Al and unavoidable impurities, the aluminum alloy disc blank for a magnetic disc having an electrical conductivity of 36.0% IACS or more.

Methods and systems for producing iron from an iron-containing ore are disclosed. For example, a method for producing iron comprises: providing an iron-containing ore to a dissolution subsystem comprising a first electrochemical cell and a dissolution tank; dissolving the iron-containing ore to form an acidic iron-salt solution; reducing Fe3+ ions to form Fe2+ ions and electrochemically generating protons in the first electrochemical cell; circulating solution between the dissolution tank and the first electrochemical cell; transferring formed Fe2+ ions from the dissolution subsystem to an iron-plating subsystem having a second electrochemical cell; second electrochemically reducing a first portion of the transferred formed Fe2+ ions to Fe metal at a second cathode of the second electrochemical cell; and removing the Fe metal. The methods and systems optionally include removing one or more impurities found in the feedstock.

A system for fabricating anisotropic magnetic nanowire composites includes a chamber for containing an ionic fluid. A hole in a wall of the chamber allows for the ionic fluid to be in contact with a porous template outside of the chamber, and a cathode and an anode provide an electric field across the ionic fluid and porous template. The electric field causes ionic materials in the ionic fluid to migrate into the pores of the porous template, therefore plating nanowires in the porous template. Constant distances and positions of the anode, cathode, a reference probe, and a stirring element allow for the fabrication of longer, more uniform nanowires, and for the generation of consistent magnetic nanowire composites across multiple fabrication sessions.

Some variations provide a magnetically anisotropic structure comprising a hexaferrite film disposed on a substrate, wherein the hexaferrite film contains a plurality of discrete and aligned magnetic hexaferrite particles, wherein the hexaferrite film is characterized by an average film thickness from about 1 micron to about 500 microns, and wherein the hexaferrite film contains less than 2 wt % organic matter. The hexaferrite film does not require a binder. Discrete particles are not sintered or annealed together because the maximum processing temperature to fabricate the structure is 500° C. or less, such as 250° C. or less. The magnetic hexaferrite particles may contain barium hexaferrite (BaFe12O19) and / or strontium hexaferrite (SrFe12O19). The hexaferrite film may be characterized by a remanence-to-saturation magnetization ratio of at least 0.7. Methods of making and using the magnetically anisotropic structure are also described.

Method (100) for forming a magnet (10), wherein the method (100) comprises: Forming a viscous and flowable slurry (20) comprising a magnetic powder material and a photopolymerizing powder material as well as a solvent; Producing a first crude layer (14a') from the viscous and flowable slurry (20); Hardening the first raw layer (14a') with electromagnetic radiation to form a hardened first layer (14a); after the hardening of the first raw layer (14a'), producing a second raw layer (14b') from the viscous and flowable slurry (20) in contact with the hardened first layer (14a); Hardening the second raw layer (14b') with electromagnetic radiation to form a hardened second layer (14b), wherein the hardened second layer (14b) adheres to the hardened first layer (14b); Sintering of the hardened first and second layers (14a, 14b); Subjecting the hardened first and second layers (14a, 14b) to a hot isostatic pressing (HIP) process; Providing the slurry (20) with a viscosity of at least 3 Pascal-seconds; Providing a magnetic field in the range of 0.5 to 4 Tesla; Providing the magnetic powder material comprising at least one rare earth metal; and Providing the magnetic powder material comprising neodymium, iron and boron and at least one of dysprosium and terbium, wherein the generation of the slurry (20) comprises the homogeneous mixing of the magnetic material and the photopolymerizing material as well as the solvent.

The invention discloses an NdFeB permanent magnet with high coercivity and high resistivity and a method for preparing the same. The method comprises the steps of: spraying powdery slurry containing heavy rare earth compounds, oxides and / or carbides on a flaky NdFeB permanent magnets blank after it is subjected to surface cleaning process; then stacking magnets on top of each other, and performing three-stage heat treatment on the stacked magnets to obtain the NdFeB permanent magnet with high coercivity and high resistivity. Heavy rare earth penetrates into interior of the flaky magnets at a high temperature, so that coercivity of the flaky magnets is improved. However, part of the heavy rare earth elements or alloy elements and carbide powder or oxide powder, which are not penetrated into the flaky magnets, form an interlayer bonding two of flaky magnets together.

Coatings comprising iron alloys that include iron and at least another metal (e.g., cobalt and / or nickel) for wireless recharging devices are generally described. The coatings may be directly applied to a substrate, such as a print circuit board.

Coatings for wireless recharging devices are generally described that include an iron alloy that includes iron and at least one additional metal (e.g., cobalt and / or nickel). The coating may be applied directly to a substrate, such as a printed circuit board.

The present invention relates to a preparation method of a flexible inductive electromagnetic energy harvesting device, its product, and installation method, and belongs to the technical field of preparation of energy harvesting devices. The present invention mainly applies a coating slurry containing magnetic nanopowders on both surfaces of a 75D / 144F ultrafine fiber polyester cloth base fabric, performs magnetron sputtering of copper to form a copper film pattern, bridges the copper film patterns on the two surfaces in sequence by sewing with conductive yarn, and then applies polyurethane glue to form a flexible inductive electromagnetic energy harvesting device with a magnetic base fabric as a flexible iron core and a copper film spiraled on both sides of the base fabric as a winding. The preparation method of the present invention is simple and easy to operate, and can prepare a fiber fabric with magnetic, flexible, and elastic properties that can be stretched tightly on the surface of a current-carrying circuit, thereby forming a new type of inductive electromagnetic energy harvesting device with the significant advantages of easy installation, the strongest magnetic field close to the surface of the current-carrying conductor, light weight, and good adaptability to different circuit shapes and shapes.

The application belongs to the technical field of electronic information materials, and specifically provides a method for preparing M-type barium ferrite monocrystal thin film under low temperature conditions; the method is characterized by innovative design of liquid phase raw materials and strict design of liquid phase epitaxy process parameters, and can grow the M-type barium ferrite monocrystal thin film with excellent performance on SGGG (111) substrate by liquid phase epitaxy method under low temperature conditions of 830-850 DEG C, which is not only simple in process and low in cost, but also has high crystallization quality, no impurities and defects. The M-type barium ferrite monocrystal thin film prepared by the method is a single crystal material, the film thickness is up to 150 mu m, the saturation magnetization is about 4500 Oe, the remanence is about 1000 Oe, the easy magnetization axis (c axis) is perpendicular to the film surface, has high uniaxial magnetic crystal anisotropy field, and is very beneficial to realize self-bias design of the device.

The invention provides a preparation method of a wear-resistant chemical nickel-plated boron alloy of a neodymium iron boron rare earth permanent magnet material, which comprises the following steps: S1, ultrasonic cleaning: in order to remove tiny metal powder and impurities on the surface and in pores of a part, putting the part into an ultrasonic cleaning machine, and carrying out ultrasonic cleaning with B-type pure water for 15-20 minutes at the ultrasonic cleaning temperature of 10-40 DEG C; s2, magnesium oxide oil removal: dipping a clean banister brush into magnesium oxide powder to carefully wipe the to-be-plated surface for 2-3 times in order to thoroughly remove oil stains of the part; according to the preparation method of the wear-resistant chemical nickel-boron plating alloy of the neodymium-iron-boron rare earth permanent magnet material provided by the invention, the problems that the neodymium-iron-boron permanent magnet material is low in corrosion resistance and the material is easy to fall off are solved by carrying out acid corrosion, activation, nickel immersion and chemical nickel-boron plating processes on the material and then carrying out vacuum heat treatment, the surface hardness of a part is improved, and the wear-resistant chemical nickel-boron plating alloy of the neodymium-iron-boron rare earth permanent magnet material is obtained. Therefore, the function and the service life of the product are increased.

The application provides a preparation method of wear-resistant chemical nickel-boron alloy plating of a neodymium-iron-boron rare earth permanent magnet material, and comprises the following steps: S1, ultrasonic cleaning: in order to remove small metal powder and impurities in the pores of the surface of the part, the part is placed into an ultrasonic cleaning machine, and the part is ultrasonically cleaned with type B pure water for 15-20 minutes, and the ultrasonic cleaning temperature is 10-40 DEG C; S2, magnesium oxide oil removal: in order to completely remove the oil stains of the part, clean soft hair brushes are used to carefully wipe the surface to be plated with magnesium oxide powder for 2-3 times. The application provides a preparation method of wear-resistant chemical nickel-boron alloy plating of a neodymium-iron-boron rare earth permanent magnet material, and the material is subjected to acid corrosion, activation, nickel immersion and chemical nickel-boron plating processes, and then vacuum heat treatment is performed, so that the problem of low corrosion resistance and easy chipping of the neodymium-iron-boron rare earth permanent magnet material is solved, the surface hardness of the part is improved, and the function and service life of the product are increased.

Provided is an electromagnetic wave shielding material that can satisfactorily suppress cracks or the like during use (especially during bending) as an electromagnetic wave shielding material. The electromagnetic wave shielding material including a laminate having at least one non-magnetic conductive metal layer and at least one ferromagnetic layer laminated together, wherein at least one outermost layer of the laminate is the non-magnetic conductive metal layer, and wherein, when the electromagnetic wave shielding material is bent at a radius of curvature of 0.1 mm with an outermost non-magnetic conductive metal layer outside, a bending neutral axis is located within a thickness of the outermost non-magnetic conductive metal layer.

An electroplating method for enhancing the performance of rolled-up passive components comprises providing an array of rolled-up passive components on a substrate, where each rolled-up passive component comprises a multilayer strip in a rolled configuration including multiple turns spaced apart by gaps. The multilayer strip comprises a conductive pattern layer on a strain-relieved layer, and a core of each rolled-up passive component is defined by a first of the multiple turns. A layer comprising a functional material is electroplated onto the conductive pattern layer of each rolled-up passive component, thereby at least partly filling the gaps and / or the core with the functional material.

An electromagnetic material for an inductance for operation at cryogenic temperatures including, in an electrically insulating matrix, metal nanoparticles with superparamagnetic behavior of size less than or equal to 30 nm and having a magnetic permeability greater than or equal to 1.5 for a frequency between 5 GHz and 50 GHz.

A pinched hybrid magnetic material and means of making said pinched hybrid material. The material comprises at least one magnetic material having at least one internal porous insulative layer; wherein, at least one of the voids is pinched off and filled with environmental material. The pinched voids are created by an electroless plating process.

Aspects of the present disclosure include systems, structures, circuits, and methods providing planar transformers and planar transformer structures. The planar transformers and transformer structures can include first and second core layers of soft ferromagnetic material on opposite sides of an electrical substrate. First and second coils can be configured as conductive traces disposed on the opposite sides of the substrate. The first and second soft ferromagnetic layers are in contact in a contact region. One or more holes are disposed in either or both of the soft ferromagnetic layers and contain soft ferromagnetic material to reduce reluctance of the transformer structure. The planar transformer can be included in integrated circuit (chip) packages or modules. The packages and modules may include various types of circuits; in some examples, chip packages or modules may include a gate driver or other high voltage circuit.

A MOD YIG epitaxial process for fabricating YIG nanofilms which, when deposited on GGG substrates, have single crystal epitaxial properties. The films may have thicknesses of 50 nm for a single layer, 100 nm for two layers, and 130 nm for three layers, and have a gyromagnetic ratio of 2.80 MHz per Oe, Gilbert damping ranges from 0.0003 to 0.001, 4πM$ values between 1650 G to 1780 G, coercivity from 1 Oe. to 5 Oe, and surface roughness of RMS 0.20 nm for up to 10 layers. Fabrication is economical and uses only a spinner, a drying station (RT to 150 C temperature control), and a quartz tube furnace that accommodates a flowing atmosphere of research grade oxygen, thereby eliminating the need for high vacuum deposition chambers.

The invention provides a laminated body, an element comprising the laminated body, and a method for manufacturing the laminated body. The laminate has: a piezoelectric layer formed from a crystal of an oxide having piezoelectric properties; a metal layer; and a magnetic material layer formed of a crystal of a Heusler alloy as a ferromagnet, in which the piezoelectric material layer, the metal layer, and the magnetic material layer are laminated in this order.

An inductor and a method for manufacturing the same are provided. The inductor includes at least two inductor structures. Each of the at least two inductor structures includes a single coil, a magnetic body, an electrode structure, and a protection structure. The single coil has a first end and a second end. The single coil is encapsulated by the magnetic body. The first end and the second end are exposed from a bottom surface of the magnetic body. The electrode structure is disposed on the bottom surface of the magnetic body. The electrode structure includes a first electrode and a second electrode that are spaced apart from each other. The first electrode is electrically connected with the first end. The second electrode is electrically connected with the second end. The first electrode and the second electrode are separated by the protection structure.

Methods and systems for producing are disclosed. A method for producing iron, for example, comprises: providing an iron-containing ore to a dissolution subsystem comprising a first electrochemical cell; wherein the first anolyte has a different composition than the first catholyte; dissolving at least a portion of the iron-containing ore using an acid to form an acidic iron-salt solution having dissolved first Fe3+ ions; providing at least a portion of the acidic iron-salt solution to the first cathodic chamber; first electrochemically reducing said first Fe3+ ions in the first catholyte to form Fe2+ ions; transferring the formed Fe2+ ions from the dissolution subsystem to an iron-plating subsystem having a second electrochemical cell; second electrochemically reducing a first portion of the transferred formed Fe2+ ions to Fe metal at a second cathode of the second electrochemical cell; and removing the Fe metal.

This magnet is provided with: a yoke part that contains a soft magnetic material; and a magnet part that contains a hard magnetic material and that is formed on a main surface of the yoke part. An interface between the magnet part and the yoke part has a protruding / recessed shape.

A hybrid magnetic material comprising at least one magnetic material having at least one internal porous insulative layer; and wherein, at least one of the magnetic materials fills the voids of the internal porous insulative layer. The hybrid material blends core metals and insulation layers in a manner so that the resulting material operates as a single layer material with its own unique conductivity; skin effect; B-H curve; B SAT parameters; and a unique and strong directional impedance. By using a porous insulation layer, metal layers may be bonded together through insulation layers, and this allows rapid low cost formation of the hybrid material. The hybrid material may be used to form small low-cost cores capable of handling high frequency applications.