Abstract: Provided is a sintered bearing that is capable of reducing cost through reduction in usage amount of copper, excellent in initial running-in characteristics and quietness, and is high in durability. Raw material powders including iron powder, flat copper powder, low-melting point metal powder, and graphite are loaded into a mold, and a green compact is formed under a state in which the flat copper powder is caused to adhere onto a molding surface. Subsequently, sintering is carried out without causing iron in the green compact to react with carbon so that an iron structure is formed of a ferrite phase. In this manner, a sintered bearing (1) including a base part (S2) including copper at a uniform content, and a surface layer (S1) covering a surface of the base part (S2) and including copper at a larger content than the base part (S2) can be obtained.

Abstract: The present invention relates to an elliptical unit block for preparing a core using soft magnetic metal powder and a core with excellent high current DC bias characteristics using the same, and more specifically, to an elliptical unit block for preparing a core using soft magnetic metal powder used in an inductor for an automotive electronic sub-assembly using a high current buck or boost inductor or a three phase line reactor or fuel cell system for power factor correction (PFC), and a powered magnetic core prepared using the same.

Abstract: Disclosed herein is an engine 52, in particular a combustion engine or a jet-power unit, or an engine part 54, 56 made from metal, and in particular Al or Mg, or an alloy comprising one or more thereof.

Abstract: The present invention is directed to a process for producing high density, refractory metal products via a press/sintering process. The invention is also directed to a process for producing a sputtering target and to the sputtering target so produced.

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: Seizure resistance and wear resistance of Cu—Bi—In copper-alloy sliding material are enhanced by forming a soft phase of as pure as possible Bi. Mixed powder of Cu—In cuprous alloy powder and Cu—Bi containing Cu-based alloy powder is used. A sintering condition is set such that Bi moves outside particles of said Cu—Bi containing Cu-based powder and forms a Bi grain-boundary phase free of In, and In diffuses from said Cu—In containing Cu-based powder to said Cu—Bi containing Cu-based powder.

Abstract: It is an object of the present invention to provide a valve seat product in which the amount of hard particles added to improve the wear resistance of a valve seat of an internal combustion engine is increased, and is excellent in the mechanical strength and machinability.

Abstract: The present invention relates to a composite material for the production of ecological ammunition characterized in that it comprises a) a metal matrix formed by a zinc and bismuth alloy, zinc and aluminum alloy, tin and bismuth alloy or zinc and tin alloy and a metal selected from aluminum, bismuth and the combination thereof and b) reinforcing metal particles distributed therein selected from wolframium, ferro-wolframium, ferro-wolframium carbides, wolframium carbides, wolframium oxides and ferro-wolframium oxides, subjected to oxidation before being added to the metal matrix.

Abstract: An apparatus for the generation of thermal energy comprises a reactor vessel containing a volume of pressurized hydrogen; a hydrogen-storing nickel alloy structure in the reactor vessel and configured to have an electric potential applied across it and to be heated to at least about 100 C; and a heat exchange conduit configured to carry a heat exchange medium past the nickel alloy structure so as to allow thermal energy generated in the nickel alloy structure to be transferred to the heat exchange medium. The hydrogen-storing nickel alloy structure comprises a nickel alloy skeletal catalyst mixed with an oxide. The applied electric potential, and the increase in the gas pressure and temperature of the hydrogen from the applied heat, create a reaction between hydrogen nuclei and nickel nuclei in the nickel alloy structure whereby thermal energy is generated by the emission of phonons from the nickel alloy structure.

Abstract: A material includes at least two different alloy phases. At least two alloy phases are each formed by at least one thermodynamically stable semi-Heusler alloy. The semi-Heusler alloys of the at least two alloy phases are different from one another. At least two of the semi-Heusler alloys have at least partly sintered particles that have an average particle size D50 in the range of less than or equal to 100 nm. Such a material has particularly good thermoelectric properties. A process is implemented to produce the material.

Abstract: [OBJECT] A composition of a metal nanoparticle is provided in which reproducibility in a method of producing a metal film with excellent low-temperature sinterable properties is improved. An article using the metal nanoparticle composition is also provided. [SOLVING MEANS] A composition of a metal nanoparticle that has a secondary aggregation diameter (median diameter) of 2.0 ?m or less as determined by disk centrifugal-type particle size measurement is used.

Abstract: The method for forming a 3-D metal object by 3-D printing or injection molding comprising providing as a feed material metal particles formed by establishing multiple metal components in a primary billet of a ductile material, working the primary billet through a series of reduction steps to form the components into elongated elements, leaching the ductile material from the elongated elements and reducing the length to short uniform lengths.

Abstract: An inorganic proton conductor for an electrochemical device and an electrochemical device using the inorganic proton conductor, the inorganic proton conductor including a tetravalent metallic element and an alkali metal.

Abstract: A process for the production of cutting tool inserts is described. A bottom punch is positioned into a powder compaction mold. A metallurgical powder is introduced into a mold cavity. A top punch is positioned into the powder compaction mold in an orientation opposed to the bottom punch. The metallurgical powder is compressed between the bottom punch and the top punch to form a powder compact. Also disclosed are cutting tool inserts produced in accordance with the process and powder pressing apparatuses for the production of cutting tool inserts.

Abstract: The present invention is directed to a method of manufacture of metal or alloy powders that uses liquid phase reduction of a metal halide, or a mixture of metal halides, to produce a metal particle coated in salts produced as a reaction byproduct. The reaction conditions can be chosen to select a range of metal particle sizes, and the salt coating prevents oxidation (or reaction with other atmospheric gases) and permits a range of applications hitherto difficult to achieve using metal powders.

Abstract: The invention relates to a generative production method for producing a component by selectively melting and/or sintering a powder several times consecutively by introducing an amount of heat by means of beam energy, such that the powder particles melt and/or sinter in layers, wherein the powder particles (1) are made of a first material (2) and the powder particles are surrounded by a second material (3) partially or over the entire surface thereof, wherein the second material has a lower melting point than the first material and/or lowers the melting point of the first material when mixed with the first material. The invention further relates to a corresponding powder and to a prototype produced from said powder.

Abstract: Provided is a hydrogen peroxide sensitive metal nanoparticle including: a metal nanoparticle including a biocompatible metal and a hydrogen peroxide reactive ion which is bonded to a surface of the metal nanoparticle and is oxidized by hydrogen peroxide.

Abstract: A powder metallurgy method includes (a) forming a metallic powder into a shape, (b) thermo-mechanically forming the shape into an article having a polycrystalline microstructure, (c) heat treating the article to cause coarsening of the polycrystalline microstructure, and (d) controlling the grain size homogeneity and distribution in the article formed during coarsening in step (c) by selecting the metallic powder in step (a) to include a metallic powder particle size distribution that is truncated on fine and coarse particle size sides, the selected metallic powder particle size distribution reducing abnormal grain growth such that the polycrystalline microstructure coarsens to a predefined target grain size range.

Abstract: A brazing filler metal powder is provided for brazing thin stainless steel parts together with reduced erosion. The brazing filler metal powder is formed by processing first metal particles, which typically comprise a nickel-based alloy including chromium, phosphorous, silicon, to a particle size of not greater than 0.0098 inch; providing second metal particles, typically consisting of copper, molybdenum, or cobalt; combining the first metal particles with the second metal particles by mixing and/or, milling, or sintering; and processing the combined composition to a particle size of not greater than 0.0098 inch. The first and second metal particles are less than fully alloyed together and are distinct from one another. A preferred composition of the brazing filler metal powder is 26.1 wt. % chromium, 5.4 wt. % phosphorous, 5.9 wt. % silicon, 10.0 wt. % cobalt, and a balance essentially of nickel.

Abstract: A method of producing a workpiece is disclosed. The method includes: providing a first powder, a hardness of the first powder being less than 250 HV, and a mean particle size of the first powder being less than 20 ?m; mixing the first powder and a second powder to form a mixed powder; the mixed powder includes carbon, chromium, iron, and elements selected from the group consisting of molybdenum, nickel, copper, niobium, vanadium, tungsten, silicon, cobalt, and manganese; adding a binder and water to the mixed powder; applying a spray drying process to granulate the mixed powder to form a spray-dried powder; applying a dry pressing process to the spray-dried powder to form a green part; applying a debinding process to the green part to form a debound body; and sintering the debound body into a workpiece having a hardness of higher than 250 HV.

Abstract: A composite article (1; 10; 40) comprises a plurality of inclusions (5) of a magnetocalorically active material embedded in a matrix (4) of a magnetocalorically passive material. The inclusions (5) and the matrix (4) have a microstructure characteristic of a compacted powder.

Abstract: An electrospark deposition electrode and an associated method for depositing coatings using the electrode are provided. The electrode includes a powder of a first metal and a powder of a second metal. The second metal is a braze alloy including nickel, the second metal having a lower melting point than the first metal. The powder of the first metal and the powder of the second metal are sintered together to form the electrode so that the powders are comingled but not combined within the electrode. The method includes depositing a layer of the first metal onto the substrate using an electrospark deposition process.

Abstract: Alloys based on titanium aluminides, such as ? (TiAl) which may be made through the use of casting or powder metallurgical processes and heat treatments. The alloys contain titanium, 38 to 46 atom % aluminum, and 5 to 10 atom % niobium, and they contain composite lamella structures with B19 phase and ? phase there in a volume ratio of the B19 phase to ? phase 0.05:1 and 20:1.

Abstract: A method of forming micrometric or millimetric sized granules by the agglomeration of nanometric sized particles, comprising the addition of a set of nanometric sized particles into a container having an inside wall surface with a circular or approximately circular section and setting the set of particles in motion along said inside wall surface by rotating the container about a rotation axis passing through said container. The setting in motion of the particles is done in a dry state and the container is rotated continuously at constant speed for several consecutive hours.

Abstract: An apparatus for manufacturing an article from powder material including a first table, a second table rotatably mounted on the first table about a first axis and a third table rotatably mounted on the second table about a second axis. A hollow canister is supported by the third table. A vibrator is arranged to vibrate the canister. A first device is arranged to rotate the second table about the first axis and a second device is arranged to rotate the third table about the second axis. A hopper is arranged to supply powder material into the canister and a valve controls the flow of powder material from the hopper into the canister. A processor is arranged to control the valve, the vibrator, the first device and the second device to control the filling and packing density of the canister.

Abstract: A method and composition of a sintered superhard compact is provided. The sintered superhard compact body may comprise superhard particles and a binder phase. The binder phase may bond the superhard particles together. The binder phase comprises tungsten and cobalt. The ratio of tungsten to cobalt is between 1 and 2 and sum of W and Co in the sintered superhard compact is in a range of from about 2 to about 20 percent by weight.

Abstract: Described herein is a method of combining discrete pieces of BMG in to a BMG feedstock that has at least one dimension greater than a critical dimension of the BMG, by methods such as thermoplastic forming, pressing, extruding, folding or forging. Other embodiments relate to a bulk metallic glass (BMG) component or feedstock having discrete pieces of a BMG, wherein the BMG component or feedstock has at least one dimension greater than a critical dimension of the BMG.

Abstract: A composite soft magnetic material having low magnetostriction and high magnetic flux density contains: pure iron-based composite soft magnetic powder particles that are subjected to an insulating treatment by a Mg-containing insulating film or a phosphate film; and Fe—Si alloy powder particles including 11%-16% by mass of Si. A ratio of an amount of the Fe—Si alloy powder particles to a total amount is in a range of 10%-60% by mass. A method for producing the composite soft magnetic material comprises the steps of: mixing a pure iron-based composite soft magnetic powder, and the Fe—Si alloy powder in such a manner that a ratio of the Fe—Si alloy powder to a total amount is in a range of 10%-60%; subjecting a resultant mixture to compression molding; and subjecting a resultant molded body to a baking treatment in a non-oxidizing atmosphere.

Abstract: A method is provided for producing magnetic green compacts. Material powder including a rare earth alloy and containing not less than 15 mass % of fine particles with particle diameter of not more than 2 ?m is filled into a compacting mold, then compacted and compressed, and subjected to magnetic fields to give a green compact. A powder compact having a packing density 1.05 to 1.2 times the bulk density is subjected to a weak magnetic field of 1 to 2 T to give a compact. The magnetic field strength is increased to not less than 3 T at an excitation rate of 0.01 to 0.15 T/sec, and the strong magnetic field of not less than 3 T is applied to the compact by a high-temperature superconducting coil. The magnetic field is applied by the high-temperature superconducting coil in a direction opposite to a direction applied by a normal conducting coil.

Abstract: The present invention relates to a starting material for producing a sintered connection. In order to avoid the formation of cracks in the joining partners in the case of fluctuating thermal loading, the starting material comprises second particles 20 in addition to metallic first particles 10, wherein the second particles 20 at least proportionately contain a particle core material which has a coefficient of thermal linear expansion ? at 20° C. which is less than the coefficient of thermal linear expansion ? at 20° C. of the metal or of the metals of the first particles in metallic form, and wherein the D50 value of the second particles 20 is greater than or equal to half the D50 value of the first particles 10 and less than or equal to two times the D50 value of the first particles 10. In addition, the present invention relates to a corresponding sintered connection 100?, to an electronic circuit 70 and also to a process for forming a thermally and/or electrically conductive sintered connection.

Abstract: A magnetic material is provided, the magnetic material including a powder composite material sintered from at least one magnetizable alloy powder of a high energy density, and fibers admixed with the powder composite. The fibers may be aligned in one direction to improve at least one of high-melting, high-modulus and high-strength material properties.

Abstract: A method of producing composites of micro-engineered, coated particulates embedded in a matrix of metal, ceramic powders, or combinations thereof, capable of being tailored to exhibit application-specific desired thermal, physical and mechanical properties to form substitute materials for nickel, titanium, rhenium, magnesium, aluminum, graphite epoxy, and beryllium. The particulates are solid and/or hollow and may be coated with one or more layers of deposited materials before being combined within a substrate of powder metal, ceramic or some combination thereof which also may be coated. The combined micro-engineered nano design powder is consolidated using novel solid-state processes that prevent melting of the matrix and which involve the application of varying pressures to control the formation of the microstructure and resultant mechanical properties.

Abstract: A composition of matter comprises, in combination, in weight percent: a content of nickel as a largest content; 3.10-3.75 aluminum; 0.02-0.09 boron; 0.02-0.09 carbon; 9.5-11.25 chromium; 20.0-22.0 cobalt; 2.8-4.2 molybdenum; 1.6-2.4 niobium; 4.2-6.1 tantalum; 2.6-3.5 titanium; 1.8-2.5 tungsten; and 0.04-0.09 zirconium.

Abstract: A method of forming a connecting rod, the method including the steps of: forming the connecting rod via a powder forging process; forming an integral wear resistant surface inside a bore of the connecting rod via an inductive heating process after completion of the powder forging process.

Abstract: A metal-bonded graphite foam composite includes a ductile metal continuous phase and a dispersed phase that includes graphite foam particles.

Abstract: A mixture of powders for preparing a sintered nickel-titanium-rare earth (Ni—Ti—RE) alloy includes Ni—Ti alloy powders comprising from about 55 wt. % Ni to about 61 wt. % Ni and from about 39 wt. % Ti to about 45 wt. % Ti, and RE alloy powders comprising a RE element.

Abstract: An apparatus for the layer-by-layer production of three-dimensional objects having a material application unit containing a doctor blade with an edge closest to the construction field having a non-continuous straight line. In one embodiment the blade may vibrate. A process for layer-by-layer production, wherein the construction field is completely coated with applied powder prior to irradiation is also provided. Three dimensional articles made according to the invention are also provided.

Abstract: There is provided a nickel alloy having an excellent creep strength as well as high-temperature oxidation resistance. The nickel alloy of the present invention comprises, by mass percent, Cr in a range of 11.5 to 11.9%, Co in a range of 25 to 29%, Mo in a range of 3.4 to 3.7%, W in a range of 1.9 to 2.1%, Ti in a range of 3.9 to 4.4%, Al in a range of 2.9 to 3.2%, C in a range of 0.02 to 0.03%, B in a range of 0.01 to 0.03%, Zr in a range of 0.04 to 0.06%, Ta in a range of 2.1 to 2.2%, Hf in a range of 0.3 to 0.4%, and Nb in a range of 0.5 to 0.8%, the balance being Ni and unavoidable impurities, and contains carbides and borides precipitating in crystal grains and at grain boundaries.

Abstract: The invention provides a thermoelectric material, a method for fabricating the same, and a thermoelectric module employing the same. The thermoelectric material is composed of Zn4Sb(3-x)Rex, wherein 0<x<0.02. Further, the thermoelectric module includes a first electrode, and a thermoelectric element, wherein the thermoelectric element includes the thermoelectric material composed of Zn4Sb(3-x)Rex and contacts to the first electrode; and a second electrode contacting to the thermoelectric element, wherein the first and second electrodes are separated by the thermoelectric element.

Abstract: Braze materials, brazing processes, and coatings produced therefrom, for example, a wear-resistant coating suitable for protecting surfaces subjected to wear at high temperatures. The braze material includes first particles formed of a metallic alloy and second particles formed of a cobalt-base braze alloy having a melting point below the melting point of the first particles. The braze alloy consists of, by weight, 3.5 to 15.0% silicon, 2.0 to 6.0% boron, and the balance cobalt and incidental impurities, and the second particles constitute at least 30 up to 90 weight percent of the first and second particles combined. Following a brazing cycle performed on the braze material, a wear-resistant coating is formed in which the first particles are dispersed in a matrix of the braze alloy.

Abstract: The invention is directed at sputter targets including 50 atomic % or more molybdenum, a second metal element of niobium or vanadium, and a third metal element selected from the group consisting of titanium, chromium, niobium, vanadium, and tantalum, wherein the third metal element is different from the second metal element, and deposited films prepared by the sputter targets. In a preferred aspect of the invention, the sputter target includes a phase that is rich in molybdenum, a phase that is rich in the second metal element, and a phase that is rich in the third metal element.

Abstract: A composition suitable for use as a target containing antimony to be irradiated by accelerated charged particles (e.g., by protons to produce tin-117m) comprises an intermetallic compound of antimony and titanium which is synthesized at high-temperature, for example, in an arc furnace. The formed material is powdered and melted in an induction furnace, or heated at high gas pressure in gas static camera. The obtained product has a density, temperature stability, and heat conductivity sufficient to provide an appropriate target material.

Abstract: The present invention relates to tungsten rhenium compounds and composites and to methods of forming the same. Tungsten and rhenium powders are mixed together and sintered at high temperature and high pressure to form a unique compound. An ultra hard material may also be added. The tungsten, rhenium, and ultra hard material are mixed together and then sintered at high temperature and high pressure.

Abstract: A method of forming a sintered nickel-titanium-rare earth (Ni—Ti-RE) alloy includes adding one or more powders comprising Ni, Ti, and a rare earth constituent to a powder consolidation unit comprising an electrically conductive die and punch connectable to a power supply. The one or more powders are heated at a ramp rate of about 35° C./min or less to a sintering temperature, and pressure is applied to the powders at the sintering temperature, thereby forming a sintered Ni—Ti-RE alloy.

Abstract: The present invention relates to a porous lightweight iron and a method for preparing the same, and more particularly to a porous lightweight iron having decreased weight due to pores formed therein while having a strength similar to that of existing steel products; and a method for preparing a porous lightweight iron having desired properties or various properties according to intended use. As described above in detail, according to the present invention, the thickness, weight and strength of lightweight iron to be produced, can be controlled, thus making it possible to prepare porous lightweight iron having desired properties by controlling the sintering temperature during the preparation process, the mixing ratio of diamond or silicon carbide and the mixing ratio of raw materials.

Abstract: A wear-resistant material comprising an alloy that contains: 1.5-5.5 wt. % carbon, 0.1-2.0 wt. % silicon, max. 2.0 wt. % manganese, 3.5-30.0 wt. % chromium, 0.3-10 wt. % molybdenum, 0-10 wt. % tungsten, 0.1-30 wt. % vanadium, 0-12 wt. % niobium, 0.1-12 wt. % titanium and 1.3-3.5 wt. % nickel, the remainder being comprised of iron and production-related impurities, whereby the carbon content fulfils the following condition: CAlloy [w %]=S1+S2+S3 where S1=(Nb+2(Ti+V?0.9))/a, S2=(Mo+W/2+Cr?b)/5, S3=c+(TH?900)·0.0025, where 7<a<9, 6<b<8, 0.3<c<0.5 and 900° C.<TH<1,220° C.

Abstract: The present invention relates to tungsten-rhenium coated compounds, materials formed from tungsten-rhenium coated compounds, and to methods of forming the same. In embodiments, tungsten and rhenium are coated on ultra hard material particles to form coated ultra hard material particles, and the coated ultra hard material particles are sintered at high temperature and high pressure.

Abstract: A process is provided for producing a component. The process comprising the steps of: producing a former corresponding to the internal dimensions of the component to be formed; providing a layer of a second material on at least one surface of the former; locating the former in a containment and filling the containment with a first material; subjecting the containment to hot isostatic pressing such that the second material diffuses into the first material.

Abstract: Provided is a method for producing a decorative sintered metallic article and the same, used in jewelry goods, ornaments, clothing accessories, by combining a copper paste and a silver paste. The method comprises the steps of: producing a patterned piece by alternately arranging the copper paste containing an organic binder and water in 10 to 35 wt % and one or more kinds of copper powders selected from a copper powder and a copper alloy powder, and the silver paste similarly prepared to the copper paste; forming patterned pastes by drawing a pattern through deforming at least rows on the upper surface of the alternately arranged copper and silver pastes; drying the patterned pastes to produce a patterned piece; shaping a decorative object by processing the produced patterned piece; and firing the decorative object to produce a decorative sintered object.

Abstract: A selectively corrodible powder compact that may be used to make the components of a selectively corrodible perforating system is disclosed. The selectively corrodible powder compact includes a cellular nanomatrix comprising a nanomatrix material. The selectively corrodible powder compact also includes a plurality of dispersed particles comprising a particle core material having a density of about 7.5 g/cm3 or more, dispersed in the cellular nanomatrix. The selectively corrodible powder compact further includes a bond layer extending throughout the cellular nanomatrix between the dispersed particles.