| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 075351000 | Producing alloy | 31 |
| 20090139372 | Production method of pure metal/alloy super-micro powder - It is to propose a method of producing super-micro powders of pure metal-alloy in which cheap materials can be used and the production is efficient. In the production method of pure metal super-micro powder by heating a starting material containing a metal chloride and reducing the resulting vapor of the metal chloride with hydrogen gas, an elementary metal constituting the metal chloride is added to the starting material containing the metal chloride and a metal chloride having a large valence among metal chlorides having two or more valence is used as the metal chloride. Also, in the production method of alloy super-micro powder, a metal chloride is used as one to (number of all alloying components—1) alloying components in the starting material and an elemental metal is used as the other alloying component. | 06-04-2009 |
| 20100018346 | Synthesis of PtCo Nanoparticles - Synthesis of nanoparticles with particle size control is provided by the method of using two different metal-containing precursors, a capping component, an optional reducing agent, and then contacting the two precursors with the capping component to form a reaction solution, which is heated to produce first and second metals-containing nanoparticles. By controlling the ratio of the concentration of the capping component to the total concentration of the two metal-containing precursors, the nanoparticles can have diameters ranging between about 1 nm to about 15 nm. A decrease in the concentration of the capping component typically increases the size of the nanoparticles. Preferred compositions include Pt and Co-containing alloy nanoparticles. Controlled synthesis of larger, about 6 nm to about 12 nm, sized nanoparticles can be achieved in a solvent-free reaction process. | 01-28-2010 |
| 20100139455 | Methods of Forming Nanoparticles - The present invention provides a method for preparing nanoparticles of group IV elements, particularly nanoparticles of Si, Ge and Sn, and binary and ternary alloys of these elements. The method comprises the solution-phase decomposition of one or more group IV metal precursors at elevated temperature and under an inert atmosphere at atmospheric pressure, using a decomposition-promoting reagent. A surface-bonding agent is added to the reaction mixture to form an organic layer surrounding the nanoparticles and prevent aggregation. | 06-10-2010 |
| 20100313709 | METHOD FOR MANUFACTURING ALLOY POWDERS BASED ON TITANIUM, ZIRCONIUM AND HAFNIUM, ALLOYED WITH THE ELEMENTS NI, CU, TA, W, RE, OS AND IR - A method for manufacturing alloy powders based on titanium, zirconium and hafnium alloyed with the elements Ni, Cu, Ta, W, Re, Os, and Ir is described in which an oxide of Ti and Zr and Hf is mixed with a metal powder of the elements named and with a reducing agent, and wherein this mixture is heated in a furnace, optionally under a argonate atmosphere or, optionally under hydrogen atmosphere until the reducing reaction begins, the reaction product is leached and then washed and dried, wherein the oxide used has an average grain size of 0.5 to 20 μm, a specific surface area according to BET of 0.5 20 m | 12-16-2010 |
| 20110197710 | Making metal and bimetal nanostructures with controlled morphology - A method of making metal nanostructures having a nanometer size in at least one dimension includes preparing an aqueous solution comprising a cation of a first metal and an anion, and mixing commercial elemental powder particles of an elemental second metal having a greater reduction potential than the first metal with the aqueous solution in an amount that reacts and dissolves all of the second metal and precipitates the first metal as metal nanostructures. The temperature and concentration of the aqueous solution and the selection of the anions and the second metal are chosen to produce metal nanostructures of a desired shape, for example ribbons, wires, flowers, rods, spheres, hollow spheres, scrolls, tubes, sheets, hexagonal sheets, rice, cones, dendrites, or particles. | 08-18-2011 |
| 20110239824 | METHOD FOR RECOVERING METAL FROM TARGET AND METHOD FOR MANUFACTURING TARGET - A target consisting essentially of a CoCrPt-based metal or a CoCrPtRu-based metal, and one or more metal oxides selected from the group consisting of SiO | 10-06-2011 |
| 20110252923 | ULTRAFINE ALLOY PARTICLES, AND PROCESS FOR PRODUCING THE SAME - The Ultrafine alloy particles of an alloy includes a primary metal and one or more subsidiary metals solid-soluble in said primary metal, a content of the one or more subsidiary metals is in a range of 1 wt % to 25 wt % and the one or more subsidiary metals solid-solved in the primary metal inhibit coalescence or oxidation of the ultrafine alloy particles including the primary metal, or both. The process introduces powder materials including the primary metal and the one or more subsidiary metals for producing the ultrafine alloy particles into a thermal plasma flame under reduced pressure to form a vapor-phase mixture and introduces a cooling gas toward an end portion of the thermal plasma flame in a supply amount sufficient for quenching the vapor-phase mixture so as to generate the ultrafine alloy particles. | 10-20-2011 |
| 20110283834 | ONE-STEP SYNTHESIS OF MONODISPERSE AU-CU NANOCUBES - A one-step process for synthesizing gold-copper bimetallic nanocubes. The process comprises the step of simultaneously reducing a copper II salt and a gold halide by 1,2-hexadecanediol in diphenyl ether, and 1-dodecanethiol as well as surfactants 1-adamantanecarboxylic acid and 1-hexadecylamine. The copper II salt may be copper (II) acetylacetonate, copper chloride, copper sulfate, or copper phosphate. The gold halide may be chloroauric acid, gold chloride, gold bromide, or tetrabromoauric acid. The reduction may occur at a temperature between about 160 and 180 degrees Celsius. The copper II salt may be copper (II) acetylacetonate and the gold halide may be chloroauric acid. | 11-24-2011 |
| 20110283835 | METAL POWDER MANUFACTURING DEVICE, METAL POWDER, AND MOLDED BODY - A metal powder manufacturing device for manufacturing a metal powder includes a feed for supplying a molten metal, a fluid spout unit, and a course modification unit. The fluid spout unit further includes a channel and an orifice. The channel is provided below the feed, allowing passing of the molten metal supplied from the feed. The orifice is opened at a bottom end of the channel, spouting a fluid into the channel. The above course modification unit is provided below the fluid spout unit, and forcibly changes the traveling direction of a dispersion liquid. This dispersion liquid is composed of multiple fine droplets dispersed into the fluid. The above droplets are a resultant of a breakup caused by a contact between the molten metal and the fluid ejected from the orifice. Here, the dispersion liquid is transported so that the droplets is cooled and solidified in the dispersion liquid in order to manufacture the metal powder. | 11-24-2011 |
| 20120272790 | ALLOY NANOPARTICLES OF SN-CU-AG, PREPARATION METHOD THEREOF AND INK OR PASTE USING THE ALLOY NANOPARTICLES - The invention relates to Sn—Cu—Ag alloy nanoparticles, preparation method thereof and ink or paste using the alloy nanoparticles in which the alloy nanoparticles are suitable for metal ink having excellent electrical conductivity or solder materials having low calcinating temperature. | 11-01-2012 |
| 20130133483 | Synthesis of Nanoparticles Using Reducing Gases - Selective gas-reducing methods for making shape-defined metal-based nanoparticles. By avoiding the use of solid or liquid reducing reagents, the gas reducing reagent can be used to make shape well-defined metal- and metal alloy-based nanoparticles without producing contaminates in solution. Therefore, the post-synthesis process including surface treatment become simple or unnecessary. Weak capping reagents can be used for preventing nanoparticles from aggregation, which makes the further removing the capping reagents easier. The selective gas-reducing technique represents a new concept for shape control of nanoparticles, which is based on the concepts of tuning the reducing rate of the different facets. This technique can be used to produce morphology-controlled nanoparticles from nanometer- to submicron- to micron-sized scale. The Pt-based nanoparticles show improved catalytic properties (e.g., activity and durability). | 05-30-2013 |
| 20140047950 | Continuous Reactor and Method for Manufacturing Nanoparticles - The present invention relates to a continuous reactor a method for manufacturing nanoparticles. The reactor of the present invention includes: a plurality of first inputs for individually inputting a plurality of reagents; a first mixing part connected to the first inputs to mix the reagents; N number of first reaction units, each comprising a plurality of first diverging channels and a first converging channel to form a channel having the first diverging channels and the first converging channels alternately connected to one another in series for N times of diverging-converging actions, wherein N≧1, and the first diverging channels of a 1 | 02-20-2014 |
| 20140360315 | METHOD OF PRODUCING RARE EARTH ALLOY FLAKES - 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: Δt=−7×(|ΔRa|×|ΔSm|) | 12-11-2014 |
| 20150020647 | METHOD FOR PRODUCING MICROPARTICLES - 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. | 01-22-2015 |
| 20150040726 | TITANIUM ALLOY - 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. | 02-12-2015 |
| 20150082945 | 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. | 03-26-2015 |
| 20150372287 | Sb Nanocrystals or Sb-Alloy Nanocrystals for Fast Charge/Discharge Li- and Na-ion Battery Anodes - A method for the production of SbM | 12-24-2015 |
| 20160200971 | HIGHLY LUMINESCENT SEMICONDUCTOR NANOCRYSTALS | 07-14-2016 |
| 20170232522 | METHOD FOR PRODUCING METAL NANOPARTICLES | 08-17-2017 |
| 20220134424 | HIGH NITROGEN STEEL POWDER AND METHODS OF MAKING THE SAME - Provided are methods and devices for forming high nitrogen steel. The processes include heating a steel precursor to a temperature that transforms the steel into an austenite of FCC wherein the heating is in a nitrogen containing atmosphere. After an optional nitrogen uptake time, the precursor is further heated to a temperature above the T | 05-05-2022 |
| 075352000 | Including comminution | 11 |
| 20080264205 | Method for Making Nanoparticles - A method for making nanoparticles includes the steps of dipping a metal element in a solution that contains metallic ions or ions with a metal, wherein the metal element has a lower electronegativity or redox potential than that of the metal in the ions, and rubbing the metal element to make nanoparticles. Another method for making nanoparticles includes the steps of dipping a metal element in a solution that contains metallic ions or ions with a metal, wherein the metal element has a lower electronegativity or redox potential than that of the metal in the ions, and applying sonic energy to at least one of the metal element and solution. A further method for making copper nanoparticles includes the step of adding ascorbic acid to a copper salt solution. | 10-30-2008 |
| 20090044662 | Method for pretreating sintering material - A method for pretreating a sintering material using as a material at least two types of iron ore containing coarse grains and fine powder, using a first granulator to make the fine powder stick to coarse grains forming core grains so as to produce S-type granules, and using a second granulator to granulate only fine powder or mainly fine powder to produce P-type granules, which method producing the S-type granules by adjusting an amount of fine powder supplied into said first granulator so that the average stuck thickness of fine powder to the core grains becomes 50 to 300 μm and supplying the remaining fine powder not supplied to said first granulator to the second granulator. | 02-19-2009 |
| 20090193935 | Method for Manufacturing High Strength Ultra-Fine/Nano-Structured Al/Aln or Al Alloy/Aln Composite Materials - The present invention relates to the a method for manufacturing high strength ultra-fine/nano-structured aluminum/aluminum nitride or aluminum alloy/aluminum nitride composites using mechanical milling or mechanical alloying process which is conducted in the nitride-forming atmosphere such as nitrogen gas (N), ammonia gas (NH) or mixed gas including both gases, subsequent heat treatment process, and hot consolidation process. Also, high strength ultra-fine/nano-structured Al/ALN or Al alloy/ALN composite materials fabricated by the method of present invention have superior mechanical strength and heat resistance to those fabricated by conventional powder metallurgy process or liquid processes. | 08-06-2009 |
| 20090249920 | Fe-based amorphous magnetic powder, magnetic powder core with excellent high frequency properties and method of making them - The present invention provides an amorphous alloy powder and magnetic powder cores exhibiting excellent high frequency properties and a method for making themof. The composition of said alloy powder by atomic percentage satisfies the following formula: (Fe | 10-08-2009 |
| 20090277302 | METHOD OF COPPER PRECIPITATION IN LEAD-FREE SOLDER, GRANULATION AND SEPARATION OF (CuX)6Sn5 COMPOUNDS AND RECOVERY OF TIN - The purpose of the present invention is to separate excess coppers leached out in a lead-free solder bath and recover tin with high efficiency. An element X for forming a (CuX) | 11-12-2009 |
| 20100064851 | Method for manufacturing material for forming composite metal and method for manufacturing article formed from composite metal - A method for kneading a carbon nanomaterial with a metal material and manufacturing a composite-metal-forming material. A semi-molten metal material obtained by heating the metal material to a temperature of a region where a solid and a liquid are both present is kneaded with the carbon nanomaterial, and the composite metal material is obtained. The composite metal material is heated to the solution temperature of the metal material, and a solution treatment is performed, whereby the composite-metal-forming material is obtained. | 03-18-2010 |
| 20100107816 | METHOD OF MAKING METAL FLAKES - The invention relates to a method of making metal flakes by low- or high-kinetic milling, also known as mechanical alloying. The object of the invention is to further improve such a known method such that it is also suitable for making metal flakes having improved properties. The object is attained according to the invention in that at least one further alloying additive is provided in addition to a metal base material, and that making the metal flakes is carried out by kinetic milling of the base material together with the at least one alloying additive such that the base material and the alloying additive are mechanically alloyed with each other. | 05-06-2010 |
| 20150033912 | SYSTEM AND METHOD OF FORMING NANOSTRUCTURED FERRITIC ALLOY - A system for mechanical milling and a method of mechanical milling are disclosed. The system includes a container, a feedstock, and milling media. The container encloses a processing volume. The feedstock and the milling media are disposed in the processing volume of the container. The feedstock includes metal or alloy powder and a ceramic compound. The feedstock is mechanically milled in the processing volume using metallic milling media that includes a surface portion that has a carbon content less than about 0.4 weight percent. | 02-05-2015 |
| 20160039007 | PROCEDURE FOR THE MECHANICAL ALLOYING OF METALS - The procedure for the mechanical alloying of metals comprises grinding at least a metal inside a grinding mill together with at least a control agent to obtain a powdered ground product, wherein: —the metal is selected from the list comprising: titanium, zirconium, hafnium, vanadium, niobium, tantalum, chromium, molybdenum, tungsten; and—the control agent is selected from the list comprising: magnesium, calcium and rare earths. | 02-11-2016 |
| 20160158839 | POWDER MIXTURES CONTAINING UNIFORM DISPERSIONS OF CERAMIC PARTICLES IN SUPERALLOY PARTICLES AND RELATED METHODS - Embodiments of a method for producing powder mixtures having uniform dispersion of ceramic particles within larger superalloy particles are provided, as are embodiments of superalloy powder mixtures. In one embodiment, the method includes producing an initial powder mixture comprising ceramic particles mixed with superalloy mother particles having an average diameter larger than the average diameter of the ceramic particles. The initial powder mixture is formed into a consumable solid body. At least a portion of the consumable solid body is gradually melted, while the consumable solid body is rotated at a rate of speed sufficient to cast-off a uniformly dispersed powder mixture in which the ceramic particles are embedded within the superalloy mother particles. | 06-09-2016 |
| 20160201176 | IRON-BASED AMORPHOUS ALLOYS AND METHODS OF SYNTHESIZING IRON-BASED AMORPHOUS ALLOYS | 07-14-2016 |
