Abstract: A method for preparing a metal powder includes preparing a mixture by mixing a fluoride of a group 1 element, a fluoride of a group 2 element or a transition metal fluoride, with neodymium oxide, boron, iron, and a reducing agent; and heating the mixture at a temperature of 800° C. to 1100° C.

Abstract: A method for producing hard metal powder suitable for manufacturing hard metal products including metal carbides and a binder is provided. An easy to carry out method that provides high quality hard metal powder includes: a) dissolving in water, water soluble raw materials and a binder source to form an aqueous solution, b) drying the aqueous solution to form a precursor powder having the raw materials homogenously distributed throughout the precursor powder, c) decomposing the precursor powder by heating the powder in an inert atmosphere to remove gas evolved in the decomposition of the raw materials, d) grinding the precursor powder and mixing it with a liquid media to produce a suspension, e) spray drying the suspension to agglomerate the precursor powder, and f) heat treating the agglomerated precursor powder to form a hard metal powder containing agglomerates of carbides evenly distributed and bonded to a metallic matrix.

Abstract: A method for producing a magnetic powder includes the steps of: mixing neodymium oxide, boron, and iron to prepare a first mixture; adding and mixing calcium to the first mixture to prepare a second mixture; mixing an alkali metal with the second mixture to prepare a third mixture; and placing a carbon sheet on the third mixture, placing silica sand (SiO2 sand) thereon, and then heating the same to a temperature of 800° C. to 1100° C.

Abstract: A method of producing a magnetic powder and a magnetic powder is provided. The method of producing a magnetic powder according to an exemplary embodiment of the present disclosure includes: producing an iron powder by a reduction reaction of iron oxide, producing a magnetic powder using a molded body obtained by press molding a mixture including the iron powder, a rare earth oxide, boron, and calcium at a pressure of 22 MPa or more, and coating a surface of the magnetic powder with ammonium fluoride.

Abstract: Process for producing a titanium alloy material, such as a titanium aluminum alloy, are provided. The process includes reduction of TiCl4, which includes a titanium ion (Ti4+), through intermediate ionic states of an AlCl3-based salt solution that includes Ti3+ and an AlCl3-based salt solution that includes Ti2+, which may then undergo a disproportionation reaction to form the titanium aluminum alloy.

Abstract: The present invention provides a dispersion liquid containing silver nano-particles that develops excellent conductivity by low-temperature calcining and has silver nano-particles stably and well dispersed in a dispersion solvent, and a method for producing the dispersion liquid containing silver nano-particles.

Abstract: The invention relates to nano-particles comprising metallic ferromagnetic nanocrystals combined with either amorphous or graphitic carbon in which or on which chemical groups are present that can dissociate in aqueous solutions. According to the invention there is provided nano-particles comprising metal particles of at least one ferromagnetic metal, which metal particles are at least in part encapsulated by graphitic carbon. The nano-particles of the invention are prepared by impregnating carbon containing bodies with an aqueous solution of at least one ferromagnetic metal precursor, drying the impregnated bodies, followed by heating the impregnated bodies in an inert and substantially oxygen-free atmosphere, thereby reducing the metal compounds to the corresponding metal or metal alloy.

Abstract: Method for the production of tetrakis(trihydrocarbylphosphane)palladium(0) in organic solvent, whereby 50 to 100% by weight of the organic solvent consist of at least one polar-aprotic solvent, characterised in that a) at least one palladium compound selected from the group consisting of palladium(II) compounds and palladium(IV) compounds that are soluble in the organic solvent is reacted with b) at least one base, selected from the group consisting of alkali metal hydroxides, alkali metal carbonates, alkali metal hydrogen carbonates, alkali metal-C1-C4-alcoholates, ammonium carbonate, ammonium hydrogen carbonate, alkaline earth metal hydroxides, alkaline earth metal carbonates, alkaline earth metal hydrogen carbonates, alkaline earth metal-C1-C4-alcoholates, and alkylamines with a total of 2 to 12 carbon atoms; c) at least one trihydrocarbylphosphane; and d) at least one organic reducing agent that is different from the remaining components that are used in the method.

Abstract: The disclosure provides a method a method for generating a heterogeneous carbon-bonded material using an activated carbon support a solution comprising a material precursor and a chemical agent. The material precursor is typically a salt such as SnCl2, and the chemical agent is a substance which thermally decomposes to generate reducing gases. The mixture is heated in an inert, nonreactive atmosphere to generate the reducing gases and remove surface groups from the carbon support, allowing material such as metal from the material precursor to nucleate and directly bond to the sites. The method typically utilizes high specific surface area carbon and may produce a plurality of metal particles having an average diameter of less than about 20 nm dispersed on and strongly bonded to the underlying carbon support.

Abstract: A system and method of providing metal comprising objects via additive manufacturing techniques using an RES mixture. The RES process mixes a precursor compound and a chemical agent which thermally decomposes to form typically CO, H2, NHx, or some other reducing agent. Using the RES mixture, the additive manufacturing device reproduces an object from a sliced object model file layer-by-layer. Heat is applied to the patterned RES mixture to thermally decompose the chemical agent and reduce the precursor compound to a reduced metal species. This heating and reduction transforms the RES mixture from a general paste having little to no shear strength to an solid form exhibiting a much greater shear strength, allowing layer-by-layer generation of 3D object components.

Abstract: Processes for preparing stabilized metal-containing nanoparticles comprising silver and/or a silver alloy composite by reacting a silver compound with a reducing agent comprising a hydrazine compound at a temperature between about 20° C. and about 60° C. The reaction being carried out by incrementally adding the silver compound or a mixture of the silver compound and a stabilizer to a solution comprising the reducing agent, a stabilizer, and a solvent. Conductive ink compositions containing stabilized metal-containing nanoparticles prepared by such processes.

Abstract: The present specification relates to a method for fabricating metal nanoparticles.

Abstract: Soft magnetic particle powder is soft magnetic particle powder composed of flat soft magnetic particles, and the soft magnetic particle powder has a particle size D10 and a particle size D50 measured with a laser diffraction particle size distribution analyzer satisfying formula below: D10/D50>0.30.

Abstract: Soft magnetic particle powder is soft magnetic particle powder composed of flat soft magnetic particles, and the soft magnetic particle powder has a particle size D10 and a particle size D50 measured with a laser diffraction particle size distribution analyzer satisfying formula below: D10/D50>0.30.

Abstract: The disclosure provides a method for generating a metallic coating on a substrate using a mixture comprising a precursor compound typically of chromium oxide, a chemical agent typically comprising NHz, and an inert transport fluid. The precursor compound and chemical agent are generally in the form of particulates having mean diameters less than about 100 microns, and the transport fluid is present in an amount sufficient to facilitate application of the mixture to a substrate. The mixture is applied to a substrate and the coated substrate is heated to a temperature exceeding the decomposition temperature of the chemical agent, generating a reducing gas typically comprising CO, Hx, and/or NHx. In a particular embodiment, the precursor compound is CrO2, Cr3O4, CrO, or mixtures thereof, the chemical agent is urea, and the coated substrate is placed in a reactor having an inert atmosphere and subjected to a temperature of about 700° C. for about 5 minutes while maintaining an inert gas flow through the reactor.

Abstract: The present invention is an alloy for medical use including an Au—Pt alloy, containing 34 to 36 mass % of Pt with the balance being Au, and having an ?-phase single structure in which a ratio of a peak intensity (X) of a Pt (111) plane to a peak intensity (Y) of an Au (111) plane (X/Y) is 0.01 or less in an X-ray diffraction analysis. The alloy can be produced in such a manner that after the Au—Pt alloy ingot is molten and cast, cold working and a heat treatment for homogenization are performed at least two times on the molten and cast alloy. The alloy of the present invention is an artifact-free material that exhibits excellent compatibility with a magnetic field environment such as an MRI and has magnetic susceptibility of ±4 ppm with respect to that of water.

Abstract: A method for producing small metal alloy nanoparticles of a first metal and a second metal, comprising: mixing, at room temperature in air, a first aqueous solution of first and second metal nanoparticle precursor species in a first molar ratio of the first metal to the second metal; mixing a separate organic ligand into the first aqueous solution; adding a reducing agent to the first aqueous solution; and aging the first aqueous solution for a first period. The method may further comprise characterizing by photoluminescence or other property the metal alloy nanoparticles from the first aqueous solution and/or from a second aqueous solution of first and second metal nanoparticle precursor species in a second molar ratio of the first metal to the second metal.

Abstract: An assembly of micelle aggregates, wherein each aggregate comprises micelles of an anionic surfactant and nano-sized particles of metallic silver. A product comprising such assemblies for use in treating or preventing bacterial infections.

Abstract: The present invention addresses the problem of providing a novel, solid silver-copper alloy. Provided is a solid silver-copper alloy in which the concentration of copper contained in the silver-copper alloy is 0.1-99.94 wt %, and which has, as the principal constituent thereof, a non-eutectic structure which does not contain a eutectic when the solid silver-copper alloy is at room temperature. This silver-copper alloy can be produced by mixing a fluid containing silver ions and copper ions with a fluid containing a reducing agent, and separating silver-copper alloy particles therefrom. It is preferable to mix the fluid containing the silver ions and copper ions with the fluid containing the reducing agent in a thin-film fluid formed between processing surfaces arranged so as to face one another, capable of approaching toward and separating from one another, and capable of having at least one surface rotate relative to the other.

Abstract: A method of forming a metal deposit on an ultra-hard material. In an embodiment, the method includes providing a plurality of ultra-hard particles, mixing the ultra-hard particles in a solution with a metal salt, drying the solution to create a mixture of metal salt particles adhered to surfaces of the ultra-hard particles, heating the mixture to convert the metal salt particles into metal deposits on the surfaces of the ultra-hard particles, and HTHP sintering the mixture of ultra-hard particles with the metal deposits to form a polycrystalline ultra-hard material.

Abstract: Provided is an electroless plating method for a low temperature co-fired glass ceramic substrate, the method including: a degreasing and activation treatment step of degreasing and activating a surface of a wiring pattern formed of a silver sintered body; a catalyzing step of providing a catalyst onto the surface of the wiring pattern formed of a silver sintered body; and an electroless multi-layered coating plating treatment step. The electroless plating method further includes, between the degreasing and activation treatment step and the catalyzing step, a silver precipitation treatment step of precipitating silver on a glass component present on the surface of the wiring pattern formed of a silver sintered body after the degreasing and activation treatment step, and the catalyzing step includes providing the catalyst also to the silver precipitated in the silver precipitation treatment step.

Abstract: A process for manufacturing silver nanowires is provided, wherein the recovered silver nanowires have a high aspect ratio; and, wherein the total glycol concentration is <0.001 wt % at all times during the process.

Abstract: A method is provided for synthesizing metal cyanometallate (MCM). The method provides a solution of AXM1Y(CN)Z; where “A” is selected from a first group of metals and M1 is selected from a second group of metals. The method adds a material including M2 to the solution to form a liquid phase material that may be either a suspension or a solution. M2 is selected from the second group of metals. The method adds acid to the liquid phase material. The addition of acid to the liquid phase material decomposes the M2 material into M2-ions. Simultaneous with the addition of the acid, a precipitate of ANM1PM2Q(CN)R.FH2O is formed, where N is in a range of 1 to 2. A variation of the above-described synthesis method is also provided.

Abstract: Processes for preparing stabilized metal-containing nanoparticles comprising silver and/or a silver alloy composite by reacting a silver compound with a reducing agent comprising a hydrazine compound at a temperature between about 20° C. and about 60° C. The reaction being carried out by incrementally adding the silver compound or a mixture of the silver compound and a stabilizer to a solution comprising the reducing agent, a stabilizer, and a solvent. Conductive ink compositions containing stabilized metal-containing nanoparticles prepared by such processes.

Abstract: The present invention provides silver nano-particles that are excellent in stability and develop excellent conductivity by low-temperature calcining, a method for producing the silver nano-particles, and a silver coating composition comprising the silver nano-particles. A method for producing silver nano-particles comprising: mixing a silver compound with an aliphatic amine comprising at least a branched aliphatic hydrocarbon monoamine (D) comprising a branched aliphatic hydrocarbon group and one amino group, said branched aliphatic hydrocarbon group having 4 or more carbon atoms, to form a complex compound comprising the silver compound and the amine; and thermally decomposing the complex compound by heating to form silver nano-particles.

Abstract: A material for use in a 3D printer. The material may include a plurality of metallic particles and a stabilizing material. The metallic particles may have an average cross-sectional length that is less than or equal to about 100 nm. The stabilizing material may include an organoamine, carboxylic acid, thiol and derivatives thereof, xanthic acid, polyethylene glycols, polyvinylpyridine, polyninylpyrolidone, or a combination thereof.

Abstract: Silver nanoparticle-containing ink which develops excellent conductivity by low-temperature calcining and has silver nano-particles stably and well dispersed in a dispersion solvent. Method for producing the silver nanoparticle-containing ink, by: mixing a silver compound with amines comprising an aliphatic hydrocarbon monoamine (A) comprising one amino group and an aliphatic hydrocarbon group having 6 or more carbon atoms in total; and further comprising at least one of: an aliphatic hydrocarbon monoamine (B) comprising one amino group and an aliphatic hydrocarbon group having 5 or less carbon atoms in total; and an aliphatic hydrocarbon diamine (C) comprising two amino groups and an aliphatic hydrocarbon group having 8 or less carbon atoms in total; to form a complex compound comprising the silver compound and the amines; thermally decomposing the complex compound by heating to form silver nano-particles; and dispersing the silver nano-particles in a dispersion solvent containing an alicyclic hydrocarbon.

Abstract: Methods for preparing magnetic nanoparticles comprising metal, metal carbide, metal nitride, metal sulfide, metal phosphide, metal oxide or a mixture thereof are disclosed. Methods for preparing magnetic nanoparticles having a core comprising metal, metal carbide, metal nitride, metal sulfide, metal phosphide, or a mixture thereof and a metal oxide shell are also disclosed. The methods comprise the solution-phase decomposition of a precursor at elevated temperature then exposure of the reaction mixture to an oxidizing medium, such as air.

Abstract: Various embodiments provide methods of forming zero valent metal particles using an aerosol-reductive/expansion synthesis (A-RES) process. In one embodiment, an aerosol stream including metal precursor compound(s) and chemical agent(s) that produces reducing gases upon thermal decomposition can be introduced into a heated inert atmosphere of a RES reactor to form zero valent metal particles corresponding to metals used for the metal precursor compound(s).

Abstract: Methods for producing nanoparticles of metal alloys and the nanoparticles so produced are provided. The methods include addition of surfactant and cationic metal to a novel reagent complex between zero-valent metal and a hydride. The nanoparticles of zero-valent metal alloys produced by the method include ˜7 nm zero-valent manganese-bismuth useful in fabricating a less expensive permanent magnet.

Abstract: A method of synthesizing magnetic nanoparticles comprising soft magnetic phases is provided, wherein the method comprises degassing a first mixture at a temperature in a range from about 80° C. to 130° C. The first mixture comprises a solvent, a compound comprising iron, cobalt, or combinations thereof dissolved in the solvent, and an organic component comprising a fatty acid or an amine. Degassing the first mixture is followed by adding a capping ligand to the first mixture under inert atmosphere to form a second mixture; adding a reducing agent to the second mixture at a temperature in a processing temperature range from about 250° C. to about 350° C. to form a third mixture; and incubating the third mixture at a temperature within the processing temperature range to form nanoparticles comprising a soft magnetic phase.

Abstract: The invention relates to a cermet body essentially free from nitrogen where the binder phase is Co in an amount of from about 5 to about 25 vol % Co, further comprising TiC and WC in amounts so that the atomic Ti:W ratio is from about 2.5 to about 10. The cermet body further comprising Cr in an amount such that the atomic Cr:Co ratio is from about 0.025 to about 0.14. The cermet body is free from nucleated of Ti—W—C cores. The invention also relates to a method of making a cermet body.

Abstract: A method for making a metal-based nano-composite material is disclosed. In the method, a semi-solid state metal-based material is provided. The semi-solid state metal-based material is stirred and nano-sized reinforcements are added into the semi-solid state metal-based material to obtain a semi-solid state mixture. The semi-solid state mixture is heated to a temperature above a liquidus temperature of the metal-based material, to achieve a liquid-metal-nano-sized reinforcement mixture. The liquid-metal-nano-sized reinforcement mixture is ultrasonically processed at a temperature above the liquidus temperature by conducting ultrasonic vibrations to the liquid-metal-nano-sized reinforcement mixture along different directions at the same time.

Abstract: Disclosed are an ink composition for manufacturing a light absorption layer including metal nano particles and a method of manufacturing a thin film using the same, more particularly, an ink composition for manufacturing a light absorption layer including copper (Cu)-enriched Cu—In bimetallic metal nano particles and Group IIIA metal particles including S or Se dispersed in a solvent and a method of manufacturing a thin film using the same.

Abstract: The invention relates to a composition for synthesizing bimetallic nanoparticles, wherein the composition contains a first organometallic precursor and a second organometallic precursor having different decomposition rates and contained within an ionic liquid solution. The invention also relates to a method for synthesizing bimetallic nanoparticles, in which the composition is transformed under a hydrogen gas pressure between 0.1 and 10 MPa at a temperature between 0 and 150° C. until a suspension of bimetallic nanoparticles is obtained. The resulting nanoparticles are useful in diverse fields including the fields of catalysis and microelectronics.

Abstract: An aqueous emulsion for use in aqueous milling of hard material powder components in an aqueous slurry. The aqueous emulsion includes an oxidation inhibitor in an amount between about 0.3 weight percent and about 1.2 weight percent of the hard material powder components in the aqueous slurry. The aqueous emulsion also includes a paraffin wax in an amount between about 0.25 weight percent and about 0.75 weight percent of the hard material powder components in the aqueous slurry for vacuum dried powder and in an amount about up to 2.75 weight percent of the hard material powder components in the aqueous slurry for spray dried powder. The aqueous emulsion also includes myristic acid in an amount between about 0.10 weight percent and about 0.50 weight percent of the hard material powder components in the aqueous slurry. The balance of the aqueous emulsion is water.

Abstract: Methods for producing nanoparticles of metal alloys and the nanoparticles so produced are provided. The methods include addition of surfactant and cationic metal to a novel reagent complex between zero-valent metal and a hydride. The nanoparticles of zero-valent metal alloys produced by the method include ˜7 nm zero-valent manganese-bismuth useful in fabricating a less expensive permanent magnet.

Abstract: A process for producing refractory metal alloy powders includes the steps of blending at least one powder with at least one solvent and at least one binder to form a slurry; forming a plurality of agglomerates from the slurry; screening the plurality of agglomerates; sintering the plurality of agglomerates; and melting said plurality of agglomerates to form a plurality of homogenous, densified powder particles.

Abstract: The claimed invention provides a wet chemical method to prepare manganese bismuth nanoparticles having a particle diameter of 5 to 200 nm. When annealed at 550 to 600K in a field of 0 to 3T the nanoparticles exhibit a coercivity of approximately 1T and are suitable for utility as a permanent magnet material. A permanent magnet containing the annealed MnBi nanoparticles is also provided.

Abstract: A titanium base alloy powder is formed by subsurface reduction of a chloride vapor with a molten alkali metal or molten alkaline earth metal to form reaction products comprising pre-alloy particles and a salt of the alkali metal or the alkaline earth metal. A majority of the pre-alloy particles have a composition of at least 50% by weight of titanium, about 5.38% to 6.95% by weight of aluminum, and about 3% to 5% by weight of vanadium. The pre-alloy particles are recovered from the reaction products to produce a titanium base alloy powder containing less than about 200 ppm alkali or alkaline earth metal.

Abstract: A process for preparing a palladium nanoparticle ink comprises reacting a reaction mixture comprising a palladium salt, a stabilizer, a reducing agent, and an optional solvent to directly form the palladium nanoparticle ink. During the formation of the palladium nanoparticle ink, the palladium nanoparticles are not isolated from the reaction mixture.

Abstract: The present invention relates a process of preparing a nanopowder by using a natural source starting material wherein the nano powder is a nano metal or nano alloy or nano metal oxide or nano metal carbide or nano compound or nano composite or nanofluid. The nano product produced by the process has novel properties such as enhanced hardness, antibacterial properties, thermal properties, electrical properties, abrasive resistant, wear resistant, superior frictional properties, sliding wear resistance, enhanced tensile strength, compression strengths, enhanced load bearing capacity and corrosion properties.

Abstract: The present invention addresses the problem of providing a method for producing microparticles. Composite microparticles are separated by mixing at least two kinds of fluids to be processed in a thin film fluid that is formed between approachable and separable opposing processing surfaces that relatively rotate, wherein the fluids to be processed are a metal fluid comprising at least two kinds of metal elements that are dissolved in a solvent in the form of metal and/or metal compound and a fluid for separation containing at least one kind of separating substance for separating a composite substance comprising the at least two kinds of metal elements. The molar ratio between the at least two kinds of metal elements contained in the resulting microparticles is controlled by controlling the circumferential speed of the rotation at a confluence where the metal fluid and the fluid for separation merge at this time.

Abstract: When a ribbon is cast by heating raw materials to prepare a molten R-T-B-based alloy and supplying the molten alloy to a chill roll to solidify the molten alloy, the temperature of the molten alloy is adjusted in accordance with at least one of the arithmetic mean roughness Ra and the mean spacing of profile irregularities Sm of the surface of the chill roll, thereby controlling the spacing between adjacent R-rich phases in a crystal structure of resulting alloy flakes to a desired value. This makes it possible to inhibit variations in the crystal structure of the resulting alloy flakes that may occur due to wear of the chill roll. In adjusting the temperature of the molten alloy in accordance with at least one of the arithmetic mean roughness Ra and the mean spacing of profile irregularities Sm, it is preferred that the molten alloy temperature be adjusted using the equation: ?t=?7×(|?Ra|×|?Sm|)0.5/? where ?t is an amount of adjustment of the molten alloy temperature (° C.

Abstract: This invention relates to thermal spray coatings, powders useful in deposition of the thermal spray coatings, methods of producing the powders, and uses of the thermal spray coatings, for example, coating of piston rings and cylinder liners of internal combustion engines. The coatings of this invention are applied by thermal spray deposition of a powder. The powder contains bimetallic carbides of chromium and molybdenum dispersed in a matrix metal. The matrix metal contains nickel/chromium/molybdenum.

Abstract: A method of synthesis to produce a conductive film including cupronickel nanowires. Cupronickel nanowires can be synthesized from solution, homogeneously dispersed and printed to make conductive films (preferably <1,000 ?/sq) that preferably transmit greater than 60% of visible light.

Abstract: Provided is a method for preparing nickel-aluminum alloy powder at low temperature, which is simple and economical and is capable of solving the reactor corrosion problem. The method for preparing nickel-aluminum alloy powder at low temperature includes: preparing a powder mixture by mixing nickel powder and aluminum powder in a reactor and adding aluminum chloride into the reactor (S1); vacuumizing the inside of the reactor and sealing the reactor (S2); and preparing nickel-aluminum alloy powder by heat-treating the powder mixture in the sealed reactor at low temperature (S3).

Abstract: A titanium metal or a titanium alloy having submicron titanium boride substantially uniformly dispersed therein and a method of making same is disclosed. Ti power of Ti alloy powder has dispersed within the particles forming the powder titanium boride which is other than whisker-shaped or spherical substantially uniformly dispersed therein.

Abstract: The present invention addresses the problem of providing a novel, solid silver-copper alloy. Provided is a solid silver-copper alloy in which the concentration of copper contained in the silver-copper alloy is 0.1-99.94 wt %, and which has, as the principal constituent thereof, a non-eutectic structure which does not contain a eutectic when the solid silver-copper alloy is at room temperature. This silver-copper alloy can be produced by mixing a fluid containing silver ions and copper ions with a fluid containing a reducing agent, and separating silver-copper alloy particles therefrom. It is preferable to mix the fluid containing the silver ions and copper ions with the fluid containing the reducing agent in a thin-film fluid formed between processing surfaces arranged so as to face one another, capable of approaching toward and separating from one another, and capable of having at least one surface rotate relative to the other.

Abstract: An improved method of reducing a mixed metal oxide composition comprising oxides of nickel, cobalt, copper and iron in a hydrogen atmosphere to produce a mixture of the respective metals, the improvement wherein the atmosphere further comprises water vapor at a concentration, temperature and time to effect selective reduction of the oxides of nickel cobalt and copper relative to the iron oxide to produce the metallic mixture having a reduced ratio of metallic iron relative to metallic nickel, cobalt and copper.