Abstract: Various methods including applying a coating material with an additive to an article are disclosed. The coating material may be in a powder form before a thermal spraying used to apply the coating material. The coating material may comprise a chromium nitride, a chromium carbide, a chromium silicide, or a tungsten carbide. Additional materials may be added, e.g., a molybdenum alloy such as molybdenum-chromium. In one aspect, thermal spraying includes melting the coating material, propelling the molten coating material toward the article to be coated, and coating the article with the molten coating material. In another aspect, the coated article is one or more piston rings.

Abstract: Disclosed is an iron-based soft magnetic powder obtained by preparing an iron-oxide-based soft magnetic powder through water atomization, and thermally reducing the iron-oxide-based soft magnetic powder. The iron-based soft magnetic powder has an average particle size of 100 ?m or more and has an interface density of more than 0 ?m?1 and less than or equal to 2.6×10?2 ?m?1, where the interface density is determined from a cross-sectional area (?m2) and a cross-sectional circumference (?m) of the iron-based soft magnetic powder. The iron-based soft magnetic powder obtained by preparing an iron-oxide-based soft magnetic powder through water atomization and thermally reducing the iron-oxide-based soft magnetic powder, when used for the production of a dust core, can give a dust core having a low coercive force. Also disclosed is a duct core having a low coercive force and exhibiting superior magnetic properties.

Abstract: A method for producing nanoparticles on a substrate using a metal precursor in an ionic liquid and microwave heating is described. The composite compositions are useful as catalysts for chemical reactions, fuel cell, supercapacitor and battery components, and the like.

Abstract: A supported catalyst is prepared by a process that includes establishing shell-removal conditions for a supported catalyst intermediate that includes capped nanoparticles of a catalyst material dispersed on a carbon support. The capped nanoparticles each include a platinum alloy core capped in an organic shell. The shell-removal conditions include an elevated temperature and an inert gas atmosphere that is substantially free of oxygen. The organic shell is removed from the platinum alloy core under the shell-removal conditions to limit thermal decomposition of the carbon support and thereby limit agglomeration of the catalyst material such that the supported catalyst includes an electrochemical surface area of at least 30 m2/gPt.

Abstract: The invention relates to a method for producing an electrode layer of an electrical device, wherein the method includes the following steps: providing a quantity of nanoparticles from an electrically conductive material, the surfaces of each of which have a layer of a hygroscopic stabilizer material, preparing a substrate and producing an electrode layer on a substrate surface, wherein the nanoparticles in this context are deposited on the substrate surface and are tempered in a solvent atmosphere of a polar solvent.

Abstract: A method for producing a substantially spherical metal powder is described. A particulate source metal includes a primary particulate and has an average starting particle size. The particulate source metal is optionally ball milled and mixed with a binder in a solvent to form a slurry. The slurry is granulated to form substantially spherical granules, wherein each granule comprises an agglomeration of particulate source metal in the binder. The granules are debinded at a debinding temperature to remove the binder from the granules forming debinded granules. The debinded granules are at least partially sintered at a sintering temperature such that particles within each granule fuse together to form partially or fully sintered solid granules. The granules can then be optionally recovered to form a substantially spherical metal powder.

Abstract: A nickel-based superalloy particularly suitable for the fabrication of mechanical components for a piece of turbomachinery that it comprises the following elements in percentage by weight: chromium between 3% and 7%; tungsten between 3% and 15%; tantalum between 4% and 6%; aluminum between 4% and 8%; carbon less than 0.8%; the remaining percentage of nickel plus impurities.

Abstract: The present invention is directed toward core-shell nanoparticles, each comprising a ligand-capped metal shell surrounding a plurality of discrete, nonconcentric, metal-containing cores. Methods of making and using these nanoparticles are also disclosed.

Abstract: An audio/video cable includes an insulated layer including a copper conductor for transmitting audio/video signals and an insulation layer formed on a periphery thereof. The copper conductor includes a soft dilute copper alloy material containing pure copper, Ti as an additive element and an inevitable impurity as a balance. The soft dilute copper alloy material includes a recrystallized structure having a grain size distribution such that crystal grains in a surface layer are smaller than internal crystal grains. The soft dilute copper alloy material includes not less than 2 and not more than 12 mass ppm of sulfur, more than 2 mass ppm but not more than 30 mass ppm of oxygen, and not less than 4 and not more than 55 mass ppm of Ti.

Abstract: Vapor phase coating techniques with improved control over the co-transfer and co-deposition of aluminum and reactive element(s) from sources to the article being coated. One method includes providing a reactive element source, wherein at least a portion of the reactive element source comprises a non-halide compound of a reactive element, providing an aluminum source, providing a halide activator, and heating an article having a metallic surface, the reactive element source, the aluminum source, and the halide activator under conditions effective to cause species comprising aluminum and the reactive element to be co-deposited onto said surface to form a coating.

Abstract: A nanoparticle of a decomposition product of a transition metal aluminum hydride compound, a transition metal borohydride compound, or a transition metal gallium hydride compound. A process of: reacting a transition metal salt with an aluminum hydride compound, a borohydride compound, or a gallium hydride compound to produce one or more of the nanoparticles. The reaction occurs in solution while being sonicated at a temperature at which the metal hydride compound decomposes. A process of: reacting a nanoparticle with a compound containing at least two hydroxyl groups to form a coating having multi-dentate metal-alkoxides.

Abstract: A Sn—Ag—Cu-based lead-free solder alloy and solder joints thereof with superior drop shock reliability are disclosed. The solder contains between greater than 0 wt. % and less than or equal to about 1.5 wt. % Ag; between greater than or equal to about 0.7 wt. % and less than or equal to about 2.0 wt. % Cu; between greater than or equal to about 0.001 and less than or equal to about 0,2 wt. % Mn; and a remainder of Sn.

Abstract: The present invention relates to a cemented carbide with a homogeneous and dense microstructure of hard constituents in a well distributed binder phase based on Co and/or Ni with a porosity of AOO-BOO according to ISO 4505. The cemented carbide has a nanoporosity of less than 2.5 pores/1000 ?m2 with a size of 0.5-1 ?m. The cemented carbide is produced by using a binder phase powder with a specific surface area of 3 to 8 m2/g with a sponge shape and a grain size of the sponge shaped particles of between 1 and 5 ?m.

Abstract: A photoelectric conversion device includes an optical fiber, a molded portion covering an end portion and an end face of the optical fiber, the molded portion including a transparent resin transparent to light inputted and outputted through the optical fiber and a light input/output surface perpendicular to an optical axis of the optical fiber, electric wirings oppositely formed on the light input/output surface of the molded portion so as to sandwich a light input/output portion through which the light inputted and outputted through the optical fiber passes, and an optical device mounted on the electric wirings so as to stride over the light input/output portion. The optical device includes a surface light-emitting element or a surface light-receiving element optically coupled to the optical fiber through the molded portion.

Abstract: There is provided a method of preparing a nickel nanoparticle, the method including: forming an aqueous solution by mixing water and a solution containing a hydroxyl group; forming a mixed liquid by adding carboxylic acid to the aqueous solution at a ratio of 10 to 20 wt % with regard to the solution containing a hydroxyl group; and adding a nickel salt to the mixed liquid and stirring the mixed liquid.

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: A solder paste comprises an amount of a first solder alloy powder between about 60 wt % to about 92 wt %; an amount of a second solder alloy powder greater than 0 wt % and less than about 12 wt %; and a flux; wherein the first solder alloy powder comprises a first solder alloy that has a solidus temperature above about 260° C.; and wherein the second solder alloy powder comprises a second solder alloy that has a solidus temperature that is less than about 250° C.

Abstract: The invention relates to sputter targets and methods for depositing a layer from a sputter target. The method preferably includes the steps of: placing a sputter target in a vacuum chamber; placing a substrate having a substrate surface in the vacuum chamber; reducing the pressure in the vacuum chamber to about 100 Torr or less; removing atoms from the surface of the sputter target while the sputter target is in the vacuum chamber (e.g., using a magnetic field and/or an electric field). The deposited layer preferably is a molybdenum containing alloy including about 50 atomic percent or more molybdenum, 0.5 to 45 atomic percent of a second metal element selected from the group consisting of niobium and vanadium; and 0.5 to 45 atomic percent of a third metal element selected from the group consisting of tantalum, chromium, vanadium, niobium, and titanium.

Abstract: Core-shell particles encapsulated by a thin film of a catalytically active metal are described. The particles are preferably nanoparticles comprising a non-noble core with a noble metal shell which preferably do not include Pt. The non-noble metal-noble metal core-shell nanoparticles are encapsulated by a catalytically active metal which is preferably Pt. The core-shell nanoparticles are preferably formed by prolonged elevated-temperature annealing of nanoparticle alloys in an inert environment. This causes the noble metal component to surface segregate and form an atomically thin shell. The Pt overlayer is formed by a process involving the underpotential deposition of a monolayer of a non-noble metal followed by immersion in a solution comprising a Pt salt. A thin Pt layer forms via the galvanic displacement of non-noble surface atoms by more noble Pt atoms in the salt. The overall process is a robust and cost-efficient method for forming Pt-coated non-noble metal-noble metal core-shell nanoparticles.

Abstract: A nickel base repair alloy comprises a blend of about 40 to 60 wt % of a first nickel based braze alloy containing boron, about 15 to 35 wt % of a first nickel based filler material, and the remainder consisting of a blend of a second nickel based filler material and a low melting eutectic braze nickel based alloy.

Abstract: A metal powder composition including: an iron or iron-based powder composition, and a lubricating combination including a substance A, a substance B, and a substance C; wherein: substance A is a polyolefin, substance B is chosen from a group of saturated and unsaturated fatty acid amides, saturated and unsaturated fatty acid bisamides, saturated fatty alcohols and fatty acid glycerols, and substance C is an amide oligomer having a molecular weight between 500 g/mol and 30 000 g/mol; and wherein the amounts of respective substances A, B and C in weight percent of the iron or iron-based powder composition are: 0.05?A+B<0.4 wt %, C?0.3 wt %, A+B+C?2.0 wt %, and the relation between substances A and B is: B/A>0.5. Also, a method of producing a metal powder composition and a method for producing a green component.

Abstract: A cream solder obtained by kneading an Sn—Ag—Cu alloy together with a flux, wherein the Sn—Ag—Cu alloy includes a mixture of a first powdery alloy and a second powdery alloy, the first powdery alloy is represented by an Sn—Ag phase diagram having a solid-liquid coexistence region and has a given silver amount which is larger than that in the eutectic composition (3.5 wt. % silver), and the second powdery alloy has a silver amount which is that in the eutectic composition (3.5 wt. % silver) or which is close to that in the eutectic composition and is smaller than that in the first powdery alloy. This cream solder has excellent strength and thermal stability, and satisfactory bonding properties. It is based on an inexpensive Sn—Ag—Cu solder alloy. It is suitable for use as a high-temperature-side lead-free solder material conformable to temperature gradation bonding. Also provided is a method of soldering.

Abstract: A functional material includes at least two kinds of particles selected from the group consisting of first metal composite particles, second metal composite particles and third metal composite particles. The first metal composite particles, the second metal composite particles and the third metal composite particles each contain two or more kinds of metal components. The melting point T1(° C.) of the first metal composite particles, the melting point T2(° C.) of the second metal composite particles and the melting point T3(° C.) of the third metal composite particles satisfy a relationship of T1>T2>T3.

Abstract: Getter devices based on powders of alloys particularly suitable for hydrogen and nitrogen sorption are described. Such alloys have a composition including zirconium, vanadium, titanium and, optionally, one or more elements selected from iron, chromium, manganese, cobalt, nickel and aluminum.

Abstract: A solder paste using a Sn—Ag base, Sn—Cu base, or similar alloy powder has a high melting point, so it causes thermal damage to electronic devices. Sn—Ag—In base lead-free solder alloys having a low melting temperature have been studied, but they are difficult to use because they cause much occurrence of chips standing up during reflow. The present invention forms a solder paste by separating a Sn—Ag—In base lead-free solder into first and second solder alloy powders for which the difference in their peak temperatures measured by differential thermal analysis is at least 10° C. and blends the mixed powders with a flux.

Abstract: A method is provided for connecting at least two components, in which a sintering preform is used. This preform includes a carrier having a surface that has at least one structuring element containing hardened paste, wherein the hardened paste contains: (a) metal particles having a coating that contains at least one organic compound; and (b) at least one sintering aid selected from the group consisting of (b1) organic peroxides, (b2) inorganic peroxides, (b3) inorganic acids, (b4) salts of organic acids, wherein the organic acids have 1-4 carbon atoms, (b5) esters of organic acids, wherein the organic acids have 1-4 carbon atoms, and (b6) carbonyl complexes. The surface of the carrier having the hardened paste is not reactive to the constituents of the paste.

Abstract: Provided is a composite for manufacturing a chip part for a high frequency, and the composite includes a magnetic powder having a relatively spherical shape, and a metal magnetic body particle having a relatively more amorphous shape than that of the magnetic powder and a lower hardness than that of the magnetic powder.

Abstract: In solder paste of the present invention, a first metal powder, a second metal powder, and a third metal powder are dispersed in a flux or a thermosetting resin. The first metal powder includes a first metal material such as Cu, Ag, Au, or Pd that serves as a base metal. A second metal material such as Sn or In that has a melting point lower than that of the first metal material is coated on the surface of the first metal material. The second metal powder is made of a metal material such as Sn or In that has a melting point lower than that of the first metal material. The third metal powder such as a Cu, Ag, Au or Pd powder has an average particle diameter smaller than that of the first metal material and can form compounds with the second metal material and the second metal powder.

Abstract: Provided is a Mo—Si—B-based alloy for a heat-resistant alloy that satisfies, more than conventional, physical properties such as proof stress and hardness adapted to an increase in the melting point of a welding object. A Mo—Si—B-based alloy powder of this invention is such that the full width at half maximum of (600) of Mo5SiB2 in X-ray diffraction peak data is 0.08 degrees or more and 0.7 degrees or less.

Abstract: The present invention relates to ferromagnetic powders with an electrically insulating layer on iron particles intended for the manufacture of components having improved soft magnetic properties at low and medium frequencies. The invention comprises an iron powder coated with a dielectric insulating layer comprising boron bearing compounds to form an insulated ferromagnetic powder. The present invention also relates to a method of making these insulated ferromagnetic powders. The present invention further relates to a method of synthesizing a product made from insulated ferromagnetic powders via a post-heat treatment at a moderate temperature (300° C. to 700° C.), to form a glass-like coating which acts as an electrical insulator. A preferred embodiment of the present invention is obtained when small amounts of alkali bearing compounds are added to the precursors to modify the coating chemistry and significantly increase the electrical resistivity after heat treatment.

Abstract: A titanium base alloy powder having lesser amounts of aluminum and vanadium with an alkali or alkaline earth metal being present in an amount of less than about 200 ppm. The alloy powder is neither spherical nor angular and flake shaped. 6/4 alloy is specifically disclosed having a packing fraction or tap density between 4 and 11%, as is a method for making the various alloys.

Abstract: A process to increase the fluidity of metal powders by surface modification with alkylsilane reagents. This invention generally discloses that the most efficient process results from treatment with methyltrichlorosilane in hexane. In particular, the fluidity of aluminum powders having mean diameters smaller than 10 micrometers was considerably improved by the process of embodiments of the invention.

Abstract: Compositions related to skutterudite-based thermoelectric materials are disclosed. Such compositions can result in materials that have enhanced ZT values relative to one or more bulk materials from which the compositions are derived. Thermoelectric materials such as n-type and p-type skutterudites with high thermoelectric figures-of-merit can include materials with filler atoms and/or materials formed by compacting particles (e.g., nanoparticles) into a material with a plurality of grains each having a portion having a skutterudite-based structure. Methods of forming thermoelectric skutterudites, which can include the use of hot press processes to consolidate particles, are also disclosed. The particles to be consolidated can be derived from (e.g., grinded from), skutterudite-based bulk materials, elemental materials, other non-Skutterudite-based materials, or combinations of such materials.

Abstract: A powder metallurgical combination is provided comprising an iron-based powder A comprising core particles of iron to which core particles nickel is diffusion alloyed and wherein said nickel diffusion alloyed to said core particles comprises 4-7% (preferably 4.5-6%) by weight of said iron-based powder A, and a powder B substantially consisting of particles of pure iron. Further a method is provided for preparing a powder metallurgical combination.

Abstract: The present invention provides conductive metal compositions for electronic applications, and methods of preparation and uses thereof. More specifically, the present invention provides metallic particle transient liquid phase sintering compositions containing blended formulations of metal and metal alloy components that form interconnected conductive metallurgical networks with increased stability, resistance to thermal stress and ability to mitigate CTE mismatch between materials.

Abstract: Compositions containing tin nanoparticles and electrically conductive particles are described herein. The tin nanoparticles can have a size below about 25 nm so as to make the compositions fusable at temperatures below that of bulk tin (m.p.=232° C.). Particularly, when the tin nanoparticles are less than about 10 nm in size, the compositions can have a fusion temperature of less than about 200° C. The compositions can contain a whisker suppressant to inhibit or substantially minimize the formation of tin whiskers after tin nanoparticle fusion. In some embodiments, the compositions contain tin nanoparticles, electrically conductive particles comprising copper particles, and a whisker suppressant comprising nickel particles. Methods for using the present compositions are also described herein. The present compositions can be used as a lead solder replacement that allows rework to be performed.

Abstract: There is provided a metal powder for use in a selective laser sintering method for producing a three-dimensional shaped object, wherein the metal powder comprises a powder mixture of a precipitation-hardening metal composition. In particular, the metal powder of the present invention is configured to have a Fe-based component powder and a Ni-based component powder which are individually included in the powder mixture wherein a powder made of an alloy of Fe-based and Ni-based components is not included as a main powder in the powder mixture.

Abstract: A powder mixture of the present invention is characterized in that it comprises: an iron powder or an iron-based alloy powder, wherein a graphite powder is adhered to a surface of the iron powder or the iron-based alloy powder by a binding agent containing a polyolefin wax; and a negatively-charged powder to be mixed with the iron powder or the iron-based alloy powder, and consisting of an iron powder and/or an iron-based alloy powder treated for negatively charging. This enables keeping the good adhering property of a graphite powder in a mixed powder and high flowability as a mixture of the raw material powder.

Abstract: The conductive material according to the present invention includes a binder resin and conductive particles each having a solder at a conductive surface, the binder resin includes a curable compound capable of being cured by heating, and a thermal curing agent, and when the binder resin and the solder in the conductive particle are each heated at a temperature rising rate of 10° C./minute to perform differential scanning calorimetry, an exothermic peak top temperature in curing of the binder resin is lower than an endothermic peak top temperature in melting of the solder.

Abstract: A solder composition comprising a blend of a first powder component and a second powder component, wherein the first powder component is a first solder alloy and the second powder component is a second solder alloy or a metal.

Abstract: An alloy composition includes a blend of a first alloy and a second, different alloy. The blend has a combined composition including about 17.2 wt %-24.25 wt % of chromium, about 6 wt %-10.51 wt % of aluminum, about 3 wt %-23 wt % of cobalt, about 1.5 wt %-3.6 wt % of silicon, about 0.1 wt %-0.175 wt % of boron, up to about 0.163 wt % of hafnium, about 0.075 wt %-0.7 wt % of yttrium, and a balance of nickel.

Abstract: The present invention provides a method for forming compositions having a plurality of ultra-fine metallic particles, and the metallic composition produced therewith. Also provided is a substrate coated with the plurality of ultra-fine metallic particles obtained in accordance with the method of the present invention.

Abstract: The present invention provides a process for simply and easily producing fine metal particles or fine metal oxide particles in the form of a dry powder which can be used as extremely fine particles in a good dispersion state without causing coagulation for a long time even if not stored in a dispersion solvent.

Abstract: A multiphase composite system is made by binding hard particles, such as TiC particles, of various sizes with a mixture of titanium powder and aluminum, nickel, and titanium in a master alloy or as elemental materials to produce a composite system that has advantageous energy absorbing characteristics. The multiple phases of this composite system include an aggregate phase of hard particles bound with a matrix phase. The matrix phase has at least two phases with varying amounts of aluminum, nickel, and titanium. The matrix phase forms a bond with the hard particles and has varying degrees of hard and ductile phases. The composite system may be used alone or bonded to other materials such as bodies of titanium or ceramic in the manufacture of ballistic armor tiles.

Abstract: A nickel powder with an average particle size of 0.05 to 1.0 ?m, which is composed of nickel particles having an oxidized surface layer and containing sulfur, wherein the sulfur content with respect to the total weight of the powder is 100 to 2000 ppm, and the intensity of a peak identified to sulfur bonded to nickel in surface analysis by ESCA of the nickel particles varies in a direction toward the center from the surface of the particles, and this intensity has its maximum at a location deeper than 3 nm from the particle outermost surface. This nickel powder is manufactured by bringing a nickel powder containing sulfur and dispersed in a non-oxidizing gas atmosphere into contact with an oxidizing gas at a high temperature.

Abstract: The method of manufacturing the thermoelectric material including a plurality of phases that are phase-separated from a supersaturated solid solution includes: a process of performing a mechanical alloying treatment to a starting raw material that is prepared with a composition deviated from a composition range existing in an equilibrium state of a compound to generate the supersaturated solid solution; and a process of performing phase separation into the plurality of phases and solidification by heating and pressing the supersaturated solid solution, or by further performing a heat treatment according to the circumstances.

Abstract: The invention provides a preparation process of transition metal boride, comprising the following steps: A) aluminum is put in a reactor, inert gas is fed into the reactor after evacuation, the reactor is heated up to 700 to 800° C. and then added with dry potassium fluoborate or sodium fluoborate, monomer boron and cryolite are generated by rapid stirring and reaction for 4 to 6 hours, and the molten liquid at the upper layer is sucked out and the monomer boron is obtained by means of separation; and B) the obtained monomer boron is added with transition metal for reaction at the temperature from 1800 to 2200° C. in order to generate corresponding transition metal boride.

Abstract: A water-atomized iron-based steel powder is provided which comprises by weight-%: 0.45-1.50 Ni, 0.30-0.55 Mo, less than 0.3 Mn, less than 0.2 Cu, less than 0.1 C, less than 0.25 O, less than 0.5 of unavoidable impurities, and the balance being iron, and where Ni and Mo have been alloyed by a diffusion alloying process.

Abstract: An electrochemical cell has an electrode which includes a zinc-indium alloy as electrochemically active material, wherein the alloy is present in the form of particles and the entirety of the particles is composed of at least two particle fractions differing in indium concentration.

Abstract: A highly compressible iron powder for powder metallurgy has an optimized particle size distribution. The Vickers microhardness of the particles that do not pass through the sieve having the nominal opening of 150 ?m is controlled to be at most about 110. The iron powder is suitable for production of magnetic parts having high magnetism and mechanical parts having high mechanical strength.