1056 results about "Metal alloy" patented technology

The invention relates to the technical field of temperature measurement, in particular to a multi-zone temperature distribution real-time calibration method based on a heating body, which comprises the following steps of: 1, etching on the surface of a metal alloy heating body of which the resistance temperature coefficient is greater than a preset material threshold value to form N discrete series resistance heating units which are electrically connected in series but thermally discrete; 2, establishing a resistance-temperature dynamic relation library of each discrete series resistance heating unit; 3, synchronously measuring the real-time resistance value of each unit when the heating body works; 4, reversely deducing the temperature of a unit center point through a unit exclusive relational expression according to the real-time resistance value, and reconstructing a continuous temperature distribution matrix on the surface of the heating body in combination with a heat conduction equation; and 5, comparing the target temperature field with the real-time temperature field matrix, and adjusting the driving power of the corresponding unit in the out-of-tolerance region. Through continuous calibration and temperature adjustment, accurate control of a temperature field can be maintained in different use environments.

Production systems and methods for producing pellets or pellet products, which can be used, e.g., in an electric arc furnace (EAF) to produce metal alloys, are disclosed herein. In some embodiments, a method for forming coke pellets includes (i) blending biomass with a set of materials to form an input blend, (ii) preconditioning the input blend by hydrating the input blend to generate a first plurality of particles, (iii) charging the first plurality of particles into an oven to produce a second plurality of particles via pyrolysis, (iv) post-conditioning the second plurality of particles to produce a third plurality of particles by exposing the second plurality of particles to at least one of an amphipathic binder, a hydrophobic binder, or a hydrophilic binder, and (v) physically altering the third plurality of particles to form coke pellets. The biomass can have a first volatility and the set of materials can have a second volatility lower than the first volatility.

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 belongs to the technical field of catalytic materials and hydrocarbon reforming, and particularly relates to a high-entropy catalyst as well as a preparation method and application thereof. The preparation method comprises the following steps: mixing a metal salt solution containing lanthanum, chromium, copper, zinc, manganese, nickel, iron and cobalt ions with a chelating agent and a dispersing agent for reaction, carrying out ultrasonic cavitation treatment to obtain sol, adjusting the pH value, gelatinizing under an oil bath heating condition to obtain a colloidal precursor, drying, and calcining in an air atmosphere to obtain a perovskite type high-entropy oxide precursor; and then treating in a reducing atmosphere to obtain the FeZnCuNiCo perovskite type high-entropy alloy catalyst which contains metal components of La, Cr, Ni, Mn, Fe, Zn, Cu and Co and takes a multi-metal alloy active center of Fe-Zn-Cu-Ni-Co as a main component. The high-entropy catalyst can meet the harsh requirements of high temperature, strong carbon deposition driving force and long-period operation in a propane dry reforming reaction, and is suitable for industrial application scenarios of continuous production of high-temperature synthesis gas.

The invention discloses a method for preparing a methanol fuel cell anode catalyst by doping a modified multi-walled carbon nanotube carrier. The method comprises the following steps: 1) acidizing an unmodified multi-walled carbon nanotube; (2) preparing the cerium oxide doped modified multi-walled carbon nanotube; and 3) preparing the cerium oxide doped modified multi-walled carbon nanotube carrier loaded PtFe bimetallic alloy catalyst. According to the method disclosed by the invention, the MWCNTs are induced by doping CeO2 to generate more oxygen vacancy defects, so that anchoring of more active sites of the PtFe alloy is facilitated, and MOR is promoted to improve the activity of the catalyst; the stable Ce < 4 + > can deform the surface structure of Pt, so that the binding bond energy of COads and-OH is stronger, and an anti-poisoning effect is achieved; the introduced Fe element and Pt have metal electronegativity difference, so that the adsorption bond energy of formic acid, formaldehyde and carbon monoxide intermediates generated by gradual dehydrogenation of Pt and methanol can be weakened, and the anti-toxicity effect is achieved; and the PtFe alloy and the CeO2 / MWCNTs are in synergistic interaction, so that the stability of the catalyst can be enhanced.

A casting mould for producing a casting formed from a light metal alloy, in particular a housing for an electric drive for a motor vehicle. The casting mould advantageously has at least one sand core which is designed and arranged in the casting mould in such a way that the at least at least one sand core can be completely surrounded, at least in sections, in a circumferential direction by a light metal melt with which the casting mould is filled to form the casting. It is advantageous to be able to produce a casting in which, for example, a cooling channel is incorporated. It is not necessary to drill a hole to form a channel. Furthermore, the invention relates to a process for manufacturing a casting made of a light metal alloy, in particular a housing for an electric drive for a motor vehicle.

A treatment method for enhancing coercive force of neodymium iron boron magnet includes the following steps: subjecting the neodymium iron boron magnet to electrochemical deposition in a diffusion water-based solution to obtain a neodymium iron boron magnet containing a heavy rare earth; and subjecting the neodymium iron boron magnet containing the heavy rare earth to heat treatment to complete enhancement of the coercive force of the neodymium iron boron magnet. The raw material used in the present invention is cheap heavy rare earth compounds which increases the selection of diffusion sources and lowers costs. Metal alloy particles are mainly obtained in a nanoscale size and can effectively enter crystal grains, and low-melting-point metal alloy components can enhance a demagnetizing coupling effect between main phase grains. According to the present invention, the coercive force of the magnet is increased by nearly 30%, and residual magnetism is almost not changed.

A multi-material structure includes a refractory portion with a metal or metal alloy of at least one of niobium (Nb), molybdenum (Mo), tantalum (Ta), tungsten (W), rhenium (Re), iridium (Ir), vanadium (V), and ruthenium (Ru). A structural portion is metallurgically joined with the refractory portion. The structural portion includes a titanium (Ti) alloy. At least one of the refractory and structural portions is additively manufactured.

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.

A method of sealing leaks in oil and gas wells includes: removing a portion of an inner casing string within a wellbore to access an annulus associated with an area of fluid leakage; filling a first portion of the annulus with a first metal alloy to form a first metal alloy layer; filling a second portion of the annulus with cement to form a cement layer over the first metal alloy layer; and filling a third portion of the annulus with a second metal alloy to form a second metal alloy layer over the cement layer. The first metal alloy layer, the cement layer, and the second metal alloy layer together seal the annulus.

The invention relates to the technical field of radio frequency integrated circuits and advanced semiconductor packaging, in particular to a radio frequency resistor calibration structure based on an RDL process and a manufacturing method, and the radio frequency resistor calibration structure comprises a main resistor module, a redundant resistor module, a laser fine tuning module, a shielding layer module and a temperature compensation module. The main resistor module is sputtered into a film through a low-temperature coefficient metal alloy, and the high-frequency skin effect is reduced by adopting a snakelike or interdigital geometric layout; and the redundant resistor module drives metal ions to migrate through a narrow-neck structure and an electromigration effect, and compensates photoetching line width deviation and uneven sputtering thickness. The laser fine tuning module adjusts a conductive path through selective ablation or annealing of pulse laser, and forms closed-loop calibration in combination with real-time feedback of the metal induction electrode. And the consistency regulation and control of radio frequency circuit parameters of a packaging level are realized.

The invention belongs to the field of alkali metal batteries, and discloses an alkali metal alloy powder material and a preparation method, application and a product thereof, the alkali metal alloy powder material is alloy powder formed by an alkali metal element and at least one non-alkali metal element, the particle size is 1-100 microns, the atomic ratio of all elements in any single powder is highly consistent with the feeding ratio of raw materials, and the atomic ratio of all the elements in the powder is 1-100 microns. The high reducibility similar to alkali metal is maintained, the electronic conductivity is larger than 0.01 mS / cm, the average chemical valence state is smaller than 0.5 valence, and the electrochemical potential relative to metal lithium or metal sodium is 0-2 V. The preparation method comprises the following steps: heating and melting an alkali metal raw material to form an alkali metal melt, introducing a non-alkali metal raw material into the alkali metal melt, cooling to obtain an alkali metal alloy ingot, and physically grinding the alkali metal alloy ingot in a protective atmosphere to obtain powder with uniform components. The invention aims to provide a high-activity alkali metal alloy material in a powder form so as to fill the blank of the industry.

The invention discloses a high-strength, high-toughness and high-plasticity aluminum alloy and a casting and forging composite preparation method thereof, which belongs to the technical field of nonferrous metal alloys and solves the problem that the aluminum alloy forgings in the prior art have uneven structures and cannot have both high strength, toughness and high plasticity. The components of the aluminum alloy include, by mass percentage: Cu 4.2-5.0%, Mg 0.5-1.4%, Mn 0.6-1.0%, Cr 0.1-0.2%, Ti 0.1-0.15%, B 0.01-0.1%, single impurity ≤ 0.05%, total impurity ≤ 0.15%, and the balance is Al. The aluminum alloy has a tensile strength of 450-480 MPa, a yield strength of 340-360 MPa, and an elongation after fracture of 14-16%. The preparation method of the invention includes batching, smelting, extrusion casting, homogenization annealing, forging, and solid solution aging treatment.

A method of inspecting an indirectly accessible cavity of a gas turbine engine is provided. The method includes memorizing a guide tube formed of smart metal alloy (SMA) into a bent shape and straightening the guide tube. The method also includes installing a scope, which includes a connecting line to which an inspection element is attached, into the guide tube. The method then includes inserting the guide tube into the gas turbine engine toward a location of the indirectly accessible cavity, heating the guide tube to cause the guide tube to return to the bent shape in order to bring the inspection element into the indirectly accessible cavity and using the inspection element to perform an inspection of the indirectly accessible cavity.

The invention belongs to the technical field of thermal power heating surface treatment, and provides a boiler heating surface high-temperature corrosion protective coating and a preparation method thereof in order to solve the technical problems that in the prior art, a nano ceramic coating and a metal alloy coating for treating thermal power boiler heating surface high-temperature corrosion are insufficient in adhesive force, prone to falling off and short in protection service life. Through multi-layer structure design and technological parameter optimization, a coating system has continuous thermal expansion coefficient gradient distribution in the interval of 500-900 DEG C, the metal bonding layer at the bottom layer has a pore structure which can effectively absorb thermal stress, the nano ceramic layer at the surface layer can maintain high-temperature stability, and it is verified that the overall bonding strength is larger than or equal to 35 MPa, and the thermal expansion coefficient is larger than or equal to 10%. Compared with a traditional single-layer coating, the adhesive force is improved by 200% or above, and therefore the technical problems that in the prior art, adhesive force is insufficient, thermal stress is not matched, and high-temperature softening fails can be effectively solved.

The invention provides a sodium metal negative electrode structure, a preparation method thereof and a sodium ion battery. The sodium metal negative electrode structure comprises a sodium metal sheet and an artificial interface modification structure formed on the surface of the sodium metal sheet, the artificial interface modification structure comprises an evaporation structure, and the evaporation structure is formed on the surface of the sodium metal sheet through a vacuum evaporation technology; the evaporation structure is made of at least one of a sodium alloy, an SEI inorganic film-forming agent or a conductive metal simple substance, and the sodium alloy comprises sodium and metal and / or nonmetal alloyed with the sodium; the SEI inorganic film-forming agent can provide effective inorganic components for the SEI layer. The modified structure formed by vacuum evaporation has good uniformity, stability, density and adhesive force, so that the sodium metal negative electrode structure shows good interface stability, thereby prolonging the cycle life of the sodium ion battery and improving the capacity retention ratio of the sodium ion battery.

The invention belongs to the technical field of electrode plates, and particularly relates to a high-activity binary alloy hydrogen evolution electrode plate and a preparation process method. The preparation process method comprises the following steps: obtaining a metal nickel electrode substrate and white corundum sand with different particle sizes; carrying out cleaning treatment on the metal nickel initial electrode substrate; the pretreated metal nickel initial base body serves as a working electrode, and sand blasting pretreatment is conducted on a metal nickel electrode base body through white corundum sand; dust removal operation is conducted on the metal nickel electrode base body subjected to sand blasting pretreatment; and spraying binary metal alloy powder on the intermediate hydrogen evolution electrode plate through an atmospheric plasma spraying process to form the high-activity binary alloy hydrogen evolution electrode plate. The whole preparation process method sequentially comprises the steps of cleaning treatment, sand blasting pretreatment, atmospheric plasma spraying, natural cooling and the like, the process method for preparing the electrode plate is optimized, it is guaranteed that the electrode plate has excellent long-time hydrogen evolution stability when the electrode plate is subjected to a hydrogen evolution reaction, and the excellent hydrogen production effect can be achieved.

Methods for fabricating glass cores with conductive vias (e.g., TGVs), as well as related devices, are disclosed. Methods described herein are based on fabricating pillars of conductive materials (e.g., metals or metal alloys) on a temporary support, inserting the pillars into corresponding via openings in a glass core, and at least partially filling the remaining space in the openings with a filler material.

The invention relates to a housing part (18) for a housing of a control device. The housing part (18) formed of a metal alloy comprises a plurality of cooling fins (20), which protrude from a base area (23) of the housing part (18). A clearance is formed between cooling fins (20) adjacent to each other, into which a cooling airflow can be introduced. On at least one of the cooling fins (20), at least one contacting location is formed, to which an ejection element can be applied to at least support detachment of the housing part (18) from a mold part of a casting tool. The at least one contacting location is formed as a flat partial area (38) of an apex (40) of the cooling fin (20). A width (44) of the flat partial area (38) is substantially equal to a thickness of the cooling fin (20), which the cooling fin (20) has at least in an end area of the cooling fin (20) close to the apex (40). Furthermore, the invention relates to a housing for a control device, to a control device and to a method for producing the housing part (18).

Valves with a coated surface are described. A surface of the valve can include a surface coating. For example, the surface coating can include many different materials and may include a metal or metal alloy such as, for example, a molybdenum alloy or a nickel alloy or a nickel molybdenum alloy. Systems and devices including the valves are also described.

The invention relates to a multi-conductive-agent composite conductive paste for a lithium battery and a preparation method of the multi-conductive-agent composite conductive paste, and belongs to the technical field of lithium battery conductive pastes.The multi-conductive-agent composite conductive paste is characterized in that an iron-molybdenum catalyst is loaded on expanded graphite, then vertical orientation carbon nanotubes and transverse graphene blades are grown in situ, the specific surface area is increased, and the expanded graphite serves as a layered carrier; a metal alloy catalyst can be uniformly loaded in natural pores of the carbon nanotube, a layered framework is kept from collapsing at a high temperature, support is provided for directional growth of a carbon material, electrons can be rapidly transmitted along the carbon nanotube when the composite conductive paste is prepared, gaps of the carbon nanotube are filled by graphene blades, a breakpoint-free conductive network is formed, and the composite conductive paste is prepared. And meanwhile, abundant pores provide channels for lithium ion diffusion, so that the conductive efficiency is improved from the source of the structure, and abundant specific surface area and subsequent nitrogen and sulfur loading provide sufficient sites.

The present invention discloses a non-thermal plasma treatment of metal powders in order to improve their processability by additive manufacturing (AM). The invention consists in bonding primary particles constituted of metals or metal alloys to a plurality of secondary particles constituted of metals, metal alloys, ceramics or polymers by the mean of a non-thermal plasma treatment. The primary particles have a larger mean diameter than the secondary. Both particles are injected through a non-thermal plasma glow discharge and / or in its afterglow region (region downstream the plasma discharge) where their surfaces are cleaned by removing contaminants and / or oxide layer and activated to react between each other. The functionalized metal powders are then collected and afterwards processed by AM leading to high quality parts. The functionalized metal powders produced by this plasma treatment improve the processability of metal by AM.

The present disclosure relates to an electrode (1) for a secondary lithium metal battery, the electrode comprises: a current collector (2), an anode metal layer (3) comprising lithium, and at least one graded metal alloy layer (4a,4b) that extends along one or more opposing faces of the anode metal layer. The graded metal alloy layer comprising a mixture of lithium and a further metal composition, whereby the concentration of lithium relative to the further metal composition decreases outwardly from the anode metal layer. The disclosure further relates to a battery comprising the electrode and a method of manufacturing.

The shroud assembly is configured for attachment to the front of a helmet or other headgear. The shroud assembly includes an interface for the removable attachment of an accessory mount used to couple an electronic or optoelectronic imaging device to the headgear. An example shroud assembly comprises a polymer frame and an insert formed of a metal or metal alloy. The polymer frame is overmolded onto the insert such that the polymer frame and the insert cooperate to form an interface for the removable attachment of an accessory mount. The interface includes an upper recess and a lower recess. The upper recess is configured to act as a bearing surface for an engaging latch member of the accessory mount, and the lower recess is configured to act as a bearing surface for another engaging latch member of the accessory mount.

A method and apparatus used in preparing a recrystallized metal alloy involve a cooling medium and a heating element to create a cold zone and a hot zone. An additively manufactured metal alloy preform is drawn in a draw direction from the cold zone towards the hot zone to form the recrystallized metal alloy. The cold zone and the hot zone create a surface temperature gradient on at least a portion of the preform of at least about 104 K m−1. The step of drawing causes an average grain size of at least a portion of the preform to increase in a direction parallel to the draw direction.

The application relates to the technical field of lithium / sodium ion battery negative electrode materials, in particular to a phosphorus-based negative electrode material with a solid electrolyte interface and a preparation method and application thereof, the method comprises the following steps: mixing phosphorus powder, a carbon material and a metal fluoride and performing ball milling to obtain a composite negative electrode material; and performing sieving treatment on the composite negative electrode material to obtain the phosphorus-based negative electrode material. According to the application, the metal fluoride is doped to in-situ construct a solid electrolyte interface with high strength and high lithium ion / electron transmission, so that the cycle stability and the rate performance of the battery are improved. When the lithium ion battery is discharged, the metal fluoride can in-situ construct a solid electrolyte interface rich in fluorinated lithium with high Young's modulus and lithium-metal alloy with high ion / electron conductivity on the surface of phosphorus-carbon particles prior to phosphorus-carbon lithium intercalation, the solid electrolyte interface can enhance the strength of the solid electrolyte interface by means of the fluorinated lithium with high Young's modulus, so as to inhibit the expansion of the phosphorus-carbon negative electrode, and the cycle stability is improved.

The invention discloses a porous carbon catalyst embedded with high-density alloy nanoparticles as well as a preparation method and application of the porous carbon catalyst, and belongs to the technical field of fuel cells or water electrolysis catalytic materials. The porous carbon catalyst embedded with the high-density alloy nanoparticles is a nitrogen and oxygen co-doped carbon carrier which has a porous structure and is partially graphitized, the high-density and high-crystallinity alloy nanoparticles which are uniformly dispersed are embedded in the carbon carrier, and the particle size distribution is below 6nm. According to the porous carbon catalyst embedded with the high-density alloy nanoparticles, the dispersity and the utilization rate of the metal alloy nanoparticles are remarkably improved, and meanwhile, the conductivity and the stability of a carbon carrier are improved, so that the catalytic activity of the carbon carrier in an oxygen reduction reaction and an oxygen evolution reaction in an alkaline medium is effectively enhanced; the catalyst has very excellent bifunctional oxygen catalysis performance, and has a wide application prospect in the field of renewable energy source conversion and storage.

A system board includes a module board that connects to the system board with an interposer having compressible connectors. The module board can further be covered by a shield that has a metal alloy having an element to provide good electrical conductivity and an element to provide structural integrity and heat transfer. The module board can further include gaskets to interconnect the shield to a ground plane of the module board. the interposer board can further include an extra column of ground connections to reduce signaling noise between the interposer board and the system board.

The invention relates to the technical field of wire drawing devices, and discloses a non-ferrous metal alloy material wire drawing device and method.The wire drawing device comprises a metal wire drawing machine, the metal wire drawing machine comprises a machine cabinet, a water tank is installed on the machine cabinet, and driving shafts are arranged on the two sides of the interior of the water tank; the modularized cone pulley unit comprises a spline sleeve arranged on the driving shaft, and a cone pulley module is arranged on the spline sleeve; the cone pulley module comprises multiple sets of cone pulley individuals arranged on the spline sleeve, and the multiple sets of cone pulley individuals are connected in a clamped mode. The modular cone pulley unit is adopted, the cone pulley is designed into the multiple sets of cone pulley bodies connected in the clamped mode, when one set of cone pulley body is abraded, only the abraded cone pulley body needs to be replaced, the whole cone pulley does not need to be replaced, the maintenance cost is greatly reduced, the replacement time is greatly shortened, and the utilization rate and the production efficiency of equipment are improved.

A metal alloy powder composition consisting essentially of Nickel (32 to 42 wt %)-Aluminum (40-50 wt %)-Molybdenum (10-20 wt %)-Boron (0.1-2.0 wt %) in the particle size between 125 to 5 microns range and manufactured as an alloy by gas or water atomization process. This composition reduces the melting point of the alloy and minimizes the oxidation of aluminum in the alloy during thermal spray. This improves the integrity of the coating on electrodes in the alkaline water electrolysis application and the life of electrodes.