Abstract: A method for extracting secondary metal values from a sulfuric acid leachate is provided. The method includes providing a leachate which contains a primary metal and a plurality of secondary metals, wherein the primary metal is selected from the group consisting of Cu, Li and Ni and is derived from sulfuric acid leaching of an ore; passing the leachate through a first ion exchange resin which is selective to, and releasably binds, the plurality of secondary metals; stripping the plurality of secondary metals from the second or third ion exchange resins, thereby obtaining a first extract; and recovering the secondary metals from the first extract.

Abstract: Articles and methods for processing aluminum are generally described. The aluminum can include compositions of gallium and/or indium such that the aluminum is activated to react with water.

Abstract: A method of making an amalgamation preform includes providing a particle-liquid mixture containing a plurality of types of solid particles and a liquid base metal. The plurality of types of solid particles at least includes reactive particles, reactable with the base metal, and non-reactive magnetic particles. A magnetic field is applied to the particle-liquid mixture to magnetically disperse the plurality of types of solid particles in the liquid base metal to form a particle-liquid dispersion without substantially inducing a reaction between the reactive particles and the liquid base metal. A playdough-like amalgamation preform is prepared based on the particle-liquid dispersion without solidifying the liquid base metal.

Abstract: The present invention provides a method which is capable of more strictly controlling the oxygen partial pressure required during the melting of a starting material, thereby being capable of recovering a valuable metal more efficiently. A method for recovering valuable metals (Cu, Ni, Co), said method comprising the following steps: a step for preparing, as a starting material, a charge that contains at least phosphorus (P), iron (Fe) and valuable metals; a step for heating and melting the starting material into a melt, and subsequently forming the melt into a molten material that contains an alloy and slag; and a step for recovering the alloy that contains valuable metals by separating the slag from the molten material. With respect to this method for recovering valuable metals, the oxygen partial pressure in the melt is directly measured with use of an oxygen analyzer when the starting material is heated and melted.

Abstract: A multi-layered material is provided for shielding low-frequency electromagnetic waves. The multi-layered material may include a plurality of repeating sets of alternating layers of materials. Each repeating set of alternating layers may include an electrically conductive layer and a magnetic layer including a continuous layer of a magnetic material. The multi-layered material is generally configured to shield electromagnetic waves having a frequency of less than about 1 MHz. In various aspects, the electrically conductive layer may include a conductive metal layer, or a two-dimensional transitional metal carbide. The multi-layered material may be provided as a thin film, or can be shaped or sized as flakes for use with a resin composite that is deposited via a spray application technique.

Abstract: A heat treatment method for a titanium-aluminum (TiAl) intermetallic includes the following steps: providing a TiAl intermetallic casting material; performing a first-stage heat treatment on the TiAl intermetallic casting material, where the TiAl intermetallic casting material is heated until a metallographic structure thereof is transformed into the ?+? phase, and is then cooled to room temperature to form a transitional casting material; and performing a second-stage heat treatment on the transitional casting material, where the transitional casting material is heated until a metallographic structure thereof is transformed into the ? single phase, and is then cooled to room temperature to form a TiAl intermetallic.

Abstract: Methods of recovering precious metals from unconventional feed water sources. In approaches, the methods use a combination of one or more of ultrafiltration, nanofiltration, and/or reverse osmosis membranes. The unconventional feed water source may be salt lake brines, coal-fired plant flue-gas scrubber blowdown water, high salinity brines, concentrated brine from desalination of seawater and the like sources. The recovered precious metals may include gold tetrachloride, gold sulfate, silver tetrachloride, silver sulfate, rare earth elements, or mixtures thereof.

Abstract: An aluminum magnesium alloy with reduced Samson phase at grain boundaries made from the method of providing aluminum in a container, adding boron to the container, providing an inert atmosphere, arc-melting the aluminum and the boron, and mixing the aluminum and the boron in the container to form an alloy mixture. A method of suppressing the Samson phase, Al3Mg2, at grain boundaries in Aluminum, comprising providing aluminum in a container, adding boron to the container, providing an inert atmosphere, arc-melting the aluminum and the boron, and mixing the aluminum and the boron in the container to form an alloy mixture.

Abstract: An Fe-based amorphous alloy ribbon reduced in an iron loss in a condition of a magnetic flux density of 1.45 T is provided. One aspect of the present disclosure provides an Fe-based amorphous alloy ribbon. The Fe-based amorphous alloy ribbon has continuous linear laser irradiation marks on at least one surface. The linear laser irradiation marks are formed along a direction orthogonal to a casting direction of the Fe-based amorphous alloy ribbon. Each linear laser irradiation mark has unevenness on its surface. When the unevenness is evaluated in the casting direction, a difference HL between a highest point and a lowest point in the thickness direction of the Fe-based amorphous alloy ribbon is 0.25 ?m to 2.0 ?m.

Abstract: Provided is a laminate molding method for additionally manufacturing a molded object on a table by use of metal powder. The laminate molding method includes: a metal powder layer forming step of forming a metal powder layer by supplying metal powder onto a table; a melting step of melting the metal powder layer by applying, to the metal powder layer, electromagnetic energy emitted from an electromagnetic energy source; a rotating step of rotating the electromagnetic energy source and the table relative to each other; and a table vertically moving step of vertically moving the table relative to the electromagnetic energy source. Gas is emitted from a gas emission port toward an outer side of the table, the gas emission portion being provided in generally a center of the table.

Abstract: A corrosion resistant alloy, a method for making the corrosion resistant alloy, and a method for using the corrosion resistant alloy are provided. The corrosion resistant alloy includes 13-15 wt. % chromium, 5-7 wt. % nickel, and 2.5-4.5 wt. % molybdenum.

Abstract: A powder metal alloy composition is used in the production of a sintered powder metal insert for casting into an aluminum casting. The powder metal alloy composition includes an iron powder metal base, copper such that the copper is 3.5 weight percent or more of the powder metal alloy composition, and carbon in an amount of 0.1 to 1.0 weight percent of the powder metal alloy composition. Upon compacting and sintering the powder metal alloy composition to form the sintered powder metal insert, the sintered powder metal insert has a copper gradient that provides a higher concentration of copper on the surface of the sintered powder metal insert than in a center of the grains of the sintered powder metal insert. The higher concentration of copper at the surface of the insert enables a strong metallurgical bond to be formed with the aluminum casting during casting.

Abstract: Provided is a rare earth sintered magnet in which a multi-layer main phase particle having multiple layers including a layer 1 having R2 concentration, represented by at %, higher than that of a center of the particle, a layer 2 which is formed on the outside of the layer 1 and has R2 concentration lower than that of the layer 1, and a layer 3 which is formed on the outside of the layer 2 and has R2 concentration higher than that of the layer 2 is present at least in a portion in the vicinity of a surface of the main phase particle within at least 500 ?m from a surface of the sintered magnet body.

Abstract: The present disclosure relates to a process of manufacturing an article comprising at least one body of a cemented carbide and at least one body of a metal alloy or at least one body of a metal matrix composite and to a product manufactured thereof and wherein the article also comprises an interlayer between the at least one body of a cemented carbide and at least one body of a metal alloy or at least one body of a metal matrix composite in order to prevent deleterious interface phases from forming.

Abstract: A direct reduction process comprises providing a shaft furnace of a direct reduction plant to reduce iron oxide with reducing gas; providing a direct reduced iron melting furnace; and coupling a discharge chute between a discharge exit of the direct reduced shaft furnace and an inlet of the direct reduced iron melting furnace; wherein direct reduced iron and the reducing gas from the shaft furnace flow through the discharge chute and the reducing gas controls the melting furnace atmosphere to reducing environment.

Abstract: The present disclosure relates, according to some embodiments to a method for steel production, the method comprising forming a hydrogen and a carbon from a natural gas using thermal plasma electrolysis; reducing iron ore fines with the H2 to form an iron briquette; melting the briquette iron from the furnace to form a melted iron and melted non-metallic slag; separating the non-metallic slag from the melted iron in the furnace; combining the carbon and the melted iron in a furnace to form a carbon black and iron mixture; and alloying the melted iron with the carbon black to form a steel.

Abstract: A plated steel including a plated layer on a surface of a steel, in which Expression 1 of 0?Cr+Ti+Ni+Co+V+Nb+Cu+Mn?0.25 and Expression 2 of 0?Sr+Sb+Pb+B+Li+Zr+Mo+W+Ag+P?0.50 are satisfied, and Expression 3 of I(MgZn2 (41.31°))/I?(MgZn2)?0.265 and Expression 6 of 0.150?{I(MgZn2 (20.79°))+I(MgZn2 (42.24°))}/I?(MgZn2) are further satisfied in an X-ray diffraction pattern of a surface of the plated layer measured using Cu-K? rays under a condition that an X-ray output is 40 kV and 150 mA.

Abstract: An actuator includes a first ball-ramp plate, a second ball-ramp plate, and a plurality of balls. The first ball-ramp plate is formed of compressed powdered metal with ramps having a higher density than at least part of a remainder of the ball-ramp component. A method of manufacturing the actuator includes compacting a metal powder to form a blank of the first ball-ramp plate including an annular body disposed about an axis and a plurality of ramps fixedly coupled to the annular body and spaced circumferentially about the axis, and locally densifying the ramps of the blank by applying force to a ramped surface of each ramp.

Abstract: The invention relates to a dispersion-hardened platinum composition comprising at least 70 wt. % platinum, the platinum composition containing up to 29.95 wt. % of one of the metals rhodium, gold, iridium and palladium, between 0.05 wt. % and 1 wt. % oxides of the non-precious metals zirconium, yttrium and scandium, and, as the remainder, the platinum including impurities, wherein between 7.0 mol. % and 11.0 mol. % of the oxides of the non-precious metals is yttrium oxide, between 0.1 mol. % and 5.0 mol. % of the oxides is scandium oxide, and the remainder of the oxides is zirconia, including oxide impurities. The invention also relates to a crucible for crystal growing, a semi-finished product, a tool, a tube, a stirrer, a fiberglass nozzle or a component for producing or processing glass made of a platinum composition of this kind and to a method for the production of a platinum composition.

Abstract: Provided are a method and a system for processing a rare earth concentrate ore. The method comprises (1) mixing the rare earth concentrate ore and concentrated sulfuric acid, thereby obtaining a mixed slurry and a first fluorine-containing gas; (2) mixing the mixed slurry and an initiator liquid for acidolysis, thereby obtaining a clinker and a second fluorine-containing gas; (3) subjecting the clinker to leaching with water, thereby obtaining a leached slurry; (4) subjecting the leached slurry to a solid-liquid separation, thereby obtaining a filtrate and a leached slag, and recycling the leached slag to step (2) for acidolysis again.