Class / Patent application number | Description | Number of patent applications / Date published |
075255000 | Loose particulate mixture (i.e., composition) containing metal particles | 47 |
20080229880 | PRODUCTION OF HIGH-PURITY TANTALUM FLAKE POWDER - The present invention relates to a high-purity tantalum flake powder, produced by a hydride-dehydride process including: (a) cold working tantalum metal into a thin sheet; (b) hydriding the thin sheet, forming a brittle tantalum body, e.g., a foil or ribbon with an aspect ratio of greater than 5 to 1; (c) adjusting the tantalum body to a desired particle size; and (d) removing hydrogen from the tantalum body by vacuum sintering, forming a tantalum flake powder. In accordance with an embodiment of the present invention, tantalum flake is produced by sizing ultra-thin tantalum foil via the hydride-dehydride process. Tantalum is an extremely malleable metal and can be cold worked into extremely thin sheets less than 1 micron thick. Once hydrided, this foil is brittle, and can be easily sized by suitable milling processes. The hydrogen is removed by vacuum sintering, resulting in an extremely thin Ta metal flake. | 09-25-2008 |
20080236333 | Hardfacing Composition And Article Having Hardfacing Deposit - A hardfacing composition ( | 10-02-2008 |
20080245184 | Preparation method of metal nano particle using micro mixer - Disclosed is a method for preparing metal nanoparticles, the method comprising the steps of: providing a solution of metal salt and a solution of a strong reducing agent with a standard reduction potential of −0.23V or lower; and mixing the solutions by using a micro mixer without supplying additional heat energy from the exterior, while carrying out reduction of the metal. Metal nanoparticles obtained by the above method, and a micro mixer for preparing the metal nanoparticles are also disclosed. The method for preparing metal nanoparticles via the reduction of metal ions in a solution uses a strong reducing agent and a micro mixer. Therefore, it is possible to obtain metal nanoparticles having a particle size of 20 nm or more and a uniform shape and dimension without supplying additional heat energy from the exterior. Additionally, the method is amenable to a continuous process, and thus ensures cost-efficiency and stable product quality required for mass production. | 10-09-2008 |
20080245185 | THERMAL SPRAY POWDER AND THERMAL SPRAY COATING - A thermal spray powder including cermet particles, each of which contains metal containing at least one selected from the group consisting of cobalt, chrome, and nickel, and tungsten carbide. The ratio of the summed weight of cermet particles having a particle size of 25 μm or more in the thermal spray powder with respect to the summed weight of the entire cermet particles in the thermal spray powder is 0.5 to 15%. A thermal spray coating formed from the thermal spray powder is suitable for the formation of a tungsten carbide-based cermet thermal spray coating for use in rolls such as corrugated rolls. | 10-09-2008 |
20080271567 | Metal Powders and Methods for Producing the Same - A method for producing a metal powder product involves: Providing a supply of a precursor metal powder; combining the precursor metal powder with a liquid to form a slurry; feeding the slurry into a pulsating stream of hot gas; and recovering the metal powder product. | 11-06-2008 |
20090013824 | Binary alloy single-crystalline metal nanostructures and fabrication method thereof - Disclosed are a method of fabricating a binary alloy nanostructure by using metal oxides, metal substances or metal halides of metal elements used to form a binary alloy and/or binary alloy substances as a precursor through a vapor phase synthesis method and a binary alloy nanostructure fabricated by the same. More particularly, the present invention provides a method of fabricating a binary alloy nanowire or nanobelt which comprises placing a precursor on the front part of a reaction furnace and a substrate on the rear part of the furnace, and heat treating both of them under inert gas atmosphere to produce the nanowire or nanobelt and, in addition, a binary alloy nanowire or nanobelt fabricated by the method according to the present invention. | 01-15-2009 |
20090025509 | Hydrogen storage material and method of producing the same - A hydrogen storage material is formed by mixing and combining particles of a metal A selected from Mg and Al, particles of a metal B selected from Ni and Cu, and particles of an intermetallic compound A-B of the metal A and the metal B, together. A method of producing the hydrogen storage material includes a step of mixing the particles of the intermetallic compound A-B with the particles of the metal B, a step of adding particles of a hydride A-H of the metal A to the mixture and mixing them together, and a step of dehydrogenating the hydride A-H to convert it to the metal A. | 01-29-2009 |
20090114061 | DE-ALLOYED PLATINUM NANOPARTICLES - A method of producing de-alloyed nanoparticles. In an embodiment, the method comprises admixing metal precursors, freeze-drying, annealing, and de-alloying the nanoparticles in situ. Further, in an embodiment de-alloyed nanoparticle formed by the method, wherein the nanoparticle further comprises a core-shell arrangement. The nanoparticle is suitable for electrocatalytic processes and devices. | 05-07-2009 |
20090282948 | METHODS OF NANOSTRUCTURE FORMATION AND SHAPE SELECTION - Methods for forming nanostructures of various shapes are disclosed. Nanocubes, nanowires, nanopyramids and multiply twinned particles of silver may by formed by combining a solution of silver nitrate in ethylene glycol with a solution of poly(vinyl pyrrolidone) in ethylene glycol. Hollow nanostructures may be formed by reacting a solution of solid nanostructures comprising one of a first metal and a first metal alloy with a metal salt that can be reduced by the first metal or first metal alloy. Nanostructures comprising a core with at least one nanoshell may be formed by plating a nanostructure and reacting the plating with a metal salt. | 11-19-2009 |
20090293673 | POWDERED METALS EXTRACTED FROM ACID MINE DRAINAGE AND THEIR USE IN THE MANUFACTURE OF PRESSED METAL ARTICLES - Acid mine drainage is treated to form a wet meal-containing precipitate. Such wet metal containing precipitate is dried and processed to form a powder which contains one or more metals. The powder (alone or in combination with other metal powders or other additives) is then compressed (e.g., pressed in a die, rolled, extruded) and sintered to form a desired sintered metal article. In some embodiments, the sintered metal article may be subjected to one or more secondary processes (e.g., oil impregnation, resin impregnation, metal infiltration, copper infiltration, heat treating, steam oxidizing, plating and secondary machining) to alter the strength, configuration or other property of the pressed metal article. | 12-03-2009 |
20100154590 | PROCESS FOR PRODUCING REFRACTORY METAL ALLOY POWDERS - 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. | 06-24-2010 |
20110017017 | RAPID SYNTHESIS AND SIZE CONTROL OF CHALCOPYRITE-BASED SEMI-CONDUCTOR NANOPARTICLES USING MICROWAVE IRRADIATION | 01-27-2011 |
20110154947 | Brazing Composition and Brazing Method for Superalloys - A brazing composition for the brazing of superalloys including a base material with at least one initial phase is provided. The initial phase has a solidus temperature that is below the solidus temperature of the base material and, above a certain temperature, forms with the base material and/or with at least one further initial phase at least one resultant phase, the solidus temperature of which is higher that the solidus temperature of the initial phases. Heat treatment takes place in two stages, wherein the temperature of the second heat treatment is preferably 800-1200° C. The brazing composition may likewise be of the type MCrAlX, and the power particles of the initial phase may be in the form of nanoparticles. | 06-30-2011 |
20120234136 | MAGNESIUM - ALUMINIUM MAGNETIC POWDER AND METHOD FOR MAKING SAME - This invention relates to Mn—Al magnetic powders of a high coercive force which are obtained from Mn—Al alloy vaporized by plasma arc discharging, and a manufacturing method thereof. | 09-20-2012 |
20140230603 | POWDER MIXTURE - 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. | 08-21-2014 |
20140373681 | MO-SI-B-BASED ALLOY POWDER, METAL-MATERIAL RAW MATERIAL POWDER, AND METHOD OF MANUFACTURING A MO-SI-B-BASED ALLOY POWDER - 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. | 12-25-2014 |
20150294830 | A COMBINATION OF MATERIALS FOR MERCURY-DISPENSING DEVICES AND DEVICES CONTAINING SAID COMBINATION OF MATERIALS - An improved mercury-dispensing combination of materials is made up of a compound A including mercury and a second metal selected among titanium, zirconium and mixtures thereof and an alloy or an intermetallic compound B including copper and tin, said mercury-dispensing combination of materials further containing an amount of oxygen comprised between 0.03% and 0.48% with respect to the overall weight of the composition A+B. It is also possible to add a getter material C that includes metals such as titanium, zirconium, tantalum, niobium, vanadium and mixtures thereof or their alloys with other metals such as nickel, iron, aluminum. | 10-15-2015 |
20160082514 | SYSTEM AND METHOD FOR MAKING NON-SPHERICAL NANOPARTICLES AND NANOPARTICLE COMPOSITIONS MADE THEREBY - Systems and methods for selectively making non-spherical metal nanoparticles from a metal material. The metal target surface is ablated to create an ejecta event or plume containing nanoparticles moving away from the surface. Ablation may be caused by laser or electrostatic discharge. At least one electromagnetic field is placed in front of the solid target surface being ablated. The electromagnetic field manipulates at least a portion of the nanoparticles as they move away from the target surface through the electromagnetic field to create coral-shaped metal nanoparticles. The distance between the electromagnetic field and metal surface can be adjusted to yield metal nanoparticles of a desired size and/or shape. | 03-24-2016 |
20160096223 | METAL NANOPARTICLES - The present specification relates to a metal nanoparticle. Specifically, the present specification relates to a metal nanoparticle having a cavity. | 04-07-2016 |
20160114389 | METAL NANOPARTICLES - The present specification relates to a metal nanoparticle. | 04-28-2016 |
20160114398 | METHOD FOR FABRICATING METAL NANOPARTICLES - The present specification relates to a method for fabricating metal nanoparticles. | 04-28-2016 |
20160184899 | METHOD FOR PREPARING A DENDRIMER TYPE OR DENDRIMER-DERIVED METAL NANOSTRUCTURE IN LIQUID-LIQUID INTERFACE AND DENDRIMER TYPE OR DENDRIMER-DERIVED METAL NANOSTRUCTURE PREPARED BY SAME - A dendrimer type or dendrimer-derived metal nanostructure may be very easily obtained from a metal precursor and a reducing agent in a liquid-liquid interface between different liquids which form the interface. The metal nanostructure may have, particularly, a low-dimensional structure. In addition, a plurality of nanogaps may be formed between many small branches. | 06-30-2016 |
20160199910 | CHROMIUM METAL POWDER | 07-14-2016 |
20170232508 | METHOD FOR PRODUCING FINE TUNGSTEN POWDER | 08-17-2017 |
075252000 | Mixture contains particles of nonmetal | 23 |
20080271566 | PROCESS FOR TREATING PARTICULATE MATERIAL CONTAINING HEAVY METAL AND AN ADDITIVE FOR USE IN SUCH PROCESS - A process for treating particulate material containing heavy metal generated during a manufacturing process is disclosed. The process includes providing particulate material containing heavy metal within an enclosed area and mixing an additive of calcium silicate forming material with the particulate material in the enclosed area to create an additive-particulate material. The additive-particulate material can be passed into a waste collection device located downstream of the enclosed area. The calcium silicate forming material can be provided as particles with a particle size of minus 50 to plus 325 mesh. An additional aspect of the invention is an additive for use in such a process for treating metallic oxide impregnated dust, which has a particle size of plus 325 mesh and consists essentially of calcium silicate forming material. | 11-06-2008 |
20080302209 | Metallurgical Powder Composition - A metallurgical composition is provided for making compacted parts, comprising: (a) at least about 80 percent by weight of an iron or iron-based powder; (b) up to about 20 percent by weight of at least one alloying powder; (c) from about 0.05 to about 2 percent by weight of a binding agent comprising a C | 12-11-2008 |
20090107291 | Binder for the Fabrication of Diamond Tools - This invention relates to powder metallurgy, more specifically, to methods of fabricating hard alloy items. The invention can be used as an iron, cobalt or nickel base binder for the fabrication of diamond cutting tools for the construction industry and stone cutting, including segmented cutting discs of different designs and wires for reinforced concrete and asphalt cutting used in the renovation of highway pavements, runways in airports, upgrading of metallurgical plants, nuclear power plants, bridges and other structures, monolithic reinforced concrete cutting drills, as well as discs and wires for the quarry production of natural stone and large scale manufacturing of facing construction materials. This invention achieves the objective of providing binders for the fabrication of diamond tools having higher wear resistance without a significant increase in the sintering temperature, as well as higher hardness, strength and impact toughness. The achievement of these objectives by adding an iron group metal as the main component of the binder composition and alloying additives in the form of nanosized powder in accordance with this invention is illustrated with several examples of different type binders for the fabrication of diamond tools. | 04-30-2009 |
20090107292 | Lubricant for Powder Metallurgical Compositions - An iron-based powder metallurgical composition is provided comprising an iron or iron-based powder and a particulate composite lubricant, the composite lubricant comprising particles having a core comprising a solid organic lubricant having fine carbon particles adhered thereon. A particulate composite lubricant and a method for producing the same also are provided. | 04-30-2009 |
20090120237 | ENHANCED FORMULATION OF COBALT ALLOY MATRIX COMPOSITIONS - A method for manufacturing a single-element matrix cobalt-based granular media alloy composition formulated as Co | 05-14-2009 |
20100154589 | METHOD OF PRODUCING NITRIDE/TUNGSTEN NANOCOMPOSITE POWDER AND NITRIDE/TUNGSTEN NANOCOMPOSITE POWDER PRODUCED USING THE SAME - Provided is a method of producing a nitride/tungsten nanocomposite powder. The method includes mixing nitride with tungsten or a tungsten alloy, and mechanically alloying the mixture in an inert atmosphere using a milling machine. | 06-24-2010 |
20100186551 | Coarse Iron or Iron-Based Powder Composition Containing Specific Lubricant - A specifically defined powder composition is provided wherein there is a requirement that the specified lubricant always be liquid at room temperature. Such powder composition contains coarse iron or iron-based powder having an average particle size between 75 and 300 μm wherein less than 10% of the powder particles have a size below 45 μm and the amount of particles above 212 μm is above 20%, and as a lubricant at least one non-drying oil or a vegetable or animal based fatty acid having a crystalline melting point below 25° C., and a viscosity (q) at 40° C. above 15 mPas, wherein said viscosity is temperature dependent according to the following formula: | 07-29-2010 |
20100224025 | IRON-BASED POWDER FOR POWDER METALLURGY - Flowability-improving particles containing 50 to 100% by mass of carbon black are adhered to surfaces of iron powder through a binder to provide an iron-based powder for powder metallurgy which has excellent flowability and which is capable of uniformly filling a thin-walled cavity, compaction with high ejection force, and maintaining sufficient strength of a sintered body in subsequent sintering. | 09-09-2010 |
20110209575 | GRANULATED POWDER AND METHOD FOR PRODUCING GRANULATED POWDER - A granulated powder includes a metal powder and an organic binder and is obtained by binding a plurality of metal particles in the metal powder to one another by the organic binder. The organic binder contains polyvinyl alcohol or a derivative thereof and a polyol. Further, the ratio of the apparent density of the granulated powder to the true density of the metal powder (a metal material constituting the metal powder) is from 20% to 50%. Further, as the polyol, glycerin is preferred, and the amount thereof is preferably from 0.01 to 0.2 parts by weight based on 100 parts by weight of the metal powder. | 09-01-2011 |
20110265602 | LUBRICANT FOR POWDER METALLURGICAL COMPOSITIONS - An iron-based powder metallurgical composition is provided comprising an iron or iron-based powder and composite lubricant particles, with the composite lubricant particles comprising a core of 10-60% by weight of at least one primary fatty acid amide having more than 18 and not more than 24 carbon atoms and 40-90% by weight of at least one fatty acid bisamide, with the core having nanoparticles of at least one metal oxide adhered thereon. Further provided is a particulate composite lubricant as well as a method of preparing such lubricant. | 11-03-2011 |
20120031233 | LUBRICANT FOR POWDER METALLURGY - A lubricant for use in a powder mixture is disclosed. This lubricant contains carnauba wax and at least one plant- or animal-based fat. A powder mixture using this lubricant can be used to compact green parts have higher densities and helps to improve the life of the tools compacting the powder. | 02-09-2012 |
20120085201 | IRON-BASED MIXED POWDER FOR POWDER METALLURGY - In an iron-based powder, 0.01% to 5.0% by mass of oxide particles having an average size of 0.5 μm or more are contained, whereby the flowability of an iron-based mixed powder is increased and thereby the density of a green compact is increased, and ejection force is greatly reduced after compaction, thereby accomplishing an increase in product quality and a reduction in production cost. | 04-12-2012 |
20120111146 | IRON-BASED MIXED POWDER FOR POWDER METALLURGY - In an iron-based powder, 0.01% to 5.0% by mass of a flaky powder having an average particle size of longitudinal size of 100 or less, a thickness of 10 μm or less, and an aspect ratio (longitudinal size-to-thickness ratio) of 5 or more with respect to the iron-based mixed powder is contained, whereby the flowability of an iron-based mixed powder is increased, the density of a green compact is increased, and ejection force is greatly reduced after compaction, thereby accomplishing an increase in product quality and a reduction in production cost. | 05-10-2012 |
20120125154 | NOVEL COMPOSITE ANODE MATERIALS FOR LITHIUM ION BATTERIES - The present invention provides compositions and methods of making Sn-MCx-C and Sb-MOx-C nanostructured anode compositions that exhibit excellent capacity retention with high capacity and rate capability that alleviate the volume expansion encountered with alloy anodes during the charge-discharge process. | 05-24-2012 |
20120325049 | COPPER BASED BINDER FOR THE FABRICATION OF DIAMOND TOOLS - This invention relates to powder metallurgy, more specifically, to composite material production methods, and can be used for the production of copper base binders for diamond tools used in the construction industry and stone working. The copper binder comprises the following components (wt. %): Copper (30-60), iron (20-35), cobalt (10-15), tin (0-10.5), tungsten carbide (0-20) and an alloying addition. According to the first variant the alloying addition is a nanopowder having a specific surface area 6-25 m | 12-27-2012 |
20120325050 | CLAYISH COMPOSITION FOR FORMING SINTERED SILVER ALLOY BODY, POWDER FOR CLAYISH COMPOSITION FOR FORMING SINTERED SILVER ALLOY BODY, METHOD FOR MANUFACTURING CLAYISH COMPOSITION FOR FORMING SINTERED SILVER ALLOY BODY, SINTERED SILVER ALLOY BODY, AND METHOD FOR MANUFACTURING SINTERED SILVER ALLOY BODY - A clayish composition for forming a sintered silver alloy body capable of forming a sintered silver alloy body, which is not easily discolored even in the atmosphere and has excellent tensile strength, flexural strength, surface hardness (hereinafter, sometimes collectively referred to as ‘mechanical strength’), elongation or the like, powder for the clayish composition for forming a sintered silver alloy body, a method for manufacturing the clayish composition for forming a sintered silver alloy body, a sintered silver alloy body and a method for manufacturing the sintered silver alloy body. | 12-27-2012 |
20130068069 | METALLURGICAL LUBRICANT POWDER AND METAL POWDER COMPOSITION - A powder metallurgy lubricant includes an aromatic carboxylic acid represented by a formula (1), | 03-21-2013 |
20130180359 | MIXED POWDER FOR POWDER METALLURGY AND MANUFACTURING METHOD THEREOF - This mixed powder for powder metallurgy, the powder having excellent fluidity and minimal graphite powder scattering, can be obtained relatively conveniently by mixing fine graphite having an average grain diameter of 4 μm or less with an iron based powder. The process is performed without the addition of a binder and while shearing force is applied. It is preferable that the fine graphite have an average grain diameter of 2.4 μm or less and be wet-milled. A portion of the fine graphite is preferably added in place of at least one constituent selected from the group consisting of carbon black, fullerene, carbon compounds carbonized by baking, and graphite having an average grain diameter of 5 μm or more. | 07-18-2013 |
20150068361 | LUBRICANT FOR POWDER METALLURGY AND METAL POWDER COMPOSITIONS CONTAINING SAID LUBRICANT - A particulate composite lubricant for powder metallurgy comprises: first discrete particles comprising at least about 90 wt % of a fatty primary monoamide wax, being substantially free of fatty bisamide wax, and being at least partially coated with metal oxide nanoparticles and second metal-stearate free discrete particles comprising a fatty bisamide wax. A particulate composite lubricant for powder metallurgy can comprise: a Montan acid ester wax and at least one fatty amide wax comprising at least one of a fatty monoamide wax and a fatty bisamide wax. | 03-12-2015 |
20150337410 | HEAP LEACHING - A heap of a material to be leached to recover a valuable metal from the material includes an electromagnetic heating system to generate heat in situ in the heap. | 11-26-2015 |
20160089724 | PROCESS FOR MANUFACTURING METAL CONTAINING POWDER - A process for manufacturing metal containing powder, the process including the steps of: (a) mixing at least one metal oxide powder with Ca or Mg granules and/or calcium hydride in granule or powder form to form a mixture; (b) maintaining said mixture under an H | 03-31-2016 |
20160115572 | COMPOSITE POWDER OF CARBIDE/BLENDING METAL - A composite powder is provided. The composite powder comprises 80-97 wt % of carbide and 3-20 wt % of blending metal powder comprising cobalt and a first metal powder, wherein the first metal powder is formed of one of aluminum, titanium, iron, nickel, or a combination thereof, and the amount of cobalt is 90-99% of total blending metal powder. | 04-28-2016 |
075253000 | Halogen containing particles | 1 |
20130152735 | IRON-BASED MIXTURE POWDER FOR SINTERING AND IRON-BASED SINTERED ALLOY - There is provided an iron-based mixture powder for sintering, as well as an iron-based sintered alloy using same, that are capable of reducing the cutting resistance of the iron-based sintered alloy and of mitigating the shortening of cutting tool life even when a metal fluoride powder is used. The iron-based mixture powder for sintering comprises an iron-based powder, a graphite powder, a hard powder that is harder than the iron-based powder, and a metalfluoride powder. With respect to particle asperity as expressed by the following equation, | 06-20-2013 |