| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 419013000 | Nitride containing | 18 |
| 20090053089 | HOMOGENEOUS GRANULATED METAL BASED and METAL-CERAMIC BASED POWDERS - A method of making a homogeneous granulated metal-based powder, comprises steps of: providing preselected amounts of at least one metal element or metal alloy, at least one ceramic compound, and/or at least one non-metallic element; forming a homogeneous slurry/suspension or wet mixture comprising the preselected amounts of metal element(s) and/or metal alloys, ceramic compound(s), and/or non-metallic element(s), a liquid phase comprising at least one liquid, and at least one binder material; drying the slurry/suspension or mixture to remove at least a portion of the liquid phase and form a powder mixture comprising partially or completely dried granules; and subjecting the granules to a thermal de-binder process for effecting: additional removal of any remaining liquid phase, if necessary; removal of the at least one binder material; reduction of carbon content; reduction of oxygen on the surfaces or interior of the metal or metal alloy phases in the granules; and optional partial sintering for strengthening for withstanding subsequent processing. The resultant granules are useful in fabricating magnetic sputtering targets employed in the manufacture of magnetic data/information storage and retrieval media. | 02-26-2009 |
| 20100124514 | METHOD OF PRODUCING UNIFORM BLENDS OF NANO AND MICRON POWDERS - A method of uniformly dispersing a nano powder throughout a micron powder. Ordinary mixing or agitation does not succeed in attaining uniform dispersal: the nano powder agglomerates into microscopic masses. In one form of the invention, a charge of a micron powder, with fifty weight percent of charge of nanopowder is loaded into a ball mill. The mixture is ball milled for less than two hours, at room temperature in a dry condition, and produces a highly uniform distribution of the nano powder throughout the micron powder. | 05-20-2010 |
| 20100278679 | NANOPHASE CRYOGENIC-MILLED COPPER ALLOYS AND PROCESS - There is provided cryogenic milled nanophase copper alloys and methods of making the alloys. The alloys are fine grained having grains in the size range from about 2 to about 100 nanometers, and greater. The nanophase alloys possess desirable physical properties stemming from the fine grain size, such as potentially high strength. Some embodiments of the cryogenic milled copper alloys may also be tailored for ductility, toughness, fracture resistance, corrosion resistance, fatigue resistance and other physical properties by balancing the alloy composition. In addition, embodiments of the alloys generally do not require extensive or expensive post-cryogenic milling processing. | 11-04-2010 |
| 20110135530 | METHOD OF MAKING A NANOMATRIX POWDER METAL COMPACT - A method of making a powder metal compact is disclosed. The method includes forming a coated metallic powder comprising a plurality of coated metallic powder particles having particle cores with nanoscale metallic coating layers disposed thereon, wherein the metallic coating layers have a chemical composition and the particle cores have a chemical composition that is different than the chemical composition of the metallic coating layers. The method also includes applying a predetermined temperature and a predetermined pressure to the coated powder particles sufficient to form a powder metal compact by solid-phase sintering of the nanoscale metallic coating layers of the plurality of coated powder particles to form a substantially-continuous, cellular nanomatrix of a nanomatrix material, a plurality of dispersed particles dispersed within the cellular nanomatrix and a solid-state bond layer extending throughout the cellular nanomatrix. | 06-09-2011 |
| 20110150691 | PREPARATION OF RARE EARTH PERMANENT MAGNET MATERIAL - A method for preparing a rare earth permanent magnet material comprises the steps of: disposing a powder comprising one or more members selected from an oxide of R | 06-23-2011 |
| 20110150692 | Submicron Cemented Carbide with Mixed Carbides - A cemented carbide body is 1-30% by mass of binder consisting of Co, Co/Ni, Co/Fe, Co/Ni/Fe or Ni/Fe and a hard material having a hexagonal WC phase and having a face-centered cubic phase of the form (M | 06-23-2011 |
| 20110262296 | CERMET - A titanium based carbonitride alloy containing Ti, Nb, Ta, W, C, N and Co, contains: | 10-27-2011 |
| 20120063943 | METAL COMPOSITE POWDER, SINTERED BODY, AND PREPARATION METHOD THEREOF - Provided are a composite powder of a metal and carbide (carbonitride) for a structural material, a sintered body, and methods of preparing the composite powder and sintered body. The composite powder for a structural member has a composition of M | 03-15-2012 |
| 20120082586 | NITROGEN ALLOYED STAINLESS STEEL AND PROCESS - The present invention comprises the nitridization of stainless steel with a gaseous nitrogen compound such as nitrogen gas (N | 04-05-2012 |
| 20120207640 | HIGH STRENGTH ALUMINUM ALLOY - High strength aluminum alloys and methods for producing them. The alloys consist essentially of about 9.0 to 10.3 wt. % zinc, about 2.5 to 3.5 wt. % magnesium, about 1.5 to 3.0 wt. % copper and less than about 0.05 wt. % of any other alloying constituent. The balance consists of aluminum. These alloys are compatible with ceramic reinforcements used in metal matrix composites. | 08-16-2012 |
| 20130052075 | METHOD FOR THE MANUFACTURE OF A WEAR PAD FOR A BAND SAW BLADE GUIDE, SUCH A WEAR PAD, AND THE USE OF A STEEL MATERIAL FOR PRODUCING THE WEAR PAD - A wear pad of a band saw guide exposed to wear from a moving band saw blade is produced in a powder metallurgical manner from a steel material having the following composition, in percent by weight: 0.01-2 C, 0.01-3.0 Si, 0.01-10.0 Mn, 16-33 Cr, max. 5 Ni, 0.01-5.0 (W+Mo/2), max. 9 Co, max. 0.5 S, 1.6-9.8 N, 7.5 to 14 of (V+Nb/2), wherein the contents of N and of (V+Nb/2) are balanced in relation to each other so that the contents of the elements are within a range I″, F″, G, H, I″ in a coordinate system, where the content of N is the abscissa and the content of (V+Nb/2) is the ordinate, and where the coordinates for the points (in the format [x: (N, (V+Nb/2)]) are [I″: (1.6, 7.5)], [F″: (5.8, 7.5)], [G: (9.8, 14.0)], and [H: (2.6, 14.0)], max 7 of any of Ti, Zr, and Al; and a balance essentially only iron and unavoidable impurities. | 02-28-2013 |
| 20130149183 | HIGH-STRENGTH TITANIUM ALLOY MEMBER AND PRODUCTION METHOD FOR SAME - A production method for a titanium alloy member includes preparing a titanium alloy material for sintering as a raw material of a sintered body; nitriding the titanium alloy material for sintering, thereby forming a nitrogen compound layer and/or a nitrogen solid solution layer in a surface layer of the titanium alloy material for sintering and yielding a nitrogen-containing titanium alloy material for sintering; mixing the titanium alloy material for sintering and the nitrogen-containing titanium alloy material for sintering, thereby yielding a titanium alloy material for sintering mixed with nitrogen-containing titanium alloy material; sintering the titanium alloy material for sintering mixed with nitrogen-containing titanium alloy material, thereby bonding the material each other and dispersing nitrogen contained in the nitrogen-containing titanium alloy material for sintering in a condition in which nitrogen is uniformly dispersed into an entire inner portion of the sintered body by solid solution. | 06-13-2013 |
| 20140056749 | HOT-WORK TOOL STEEL AND A PROCESS FOR MAKING A HOT-WORK TOOL STEEL - A low-chromium hot-work tool steel consisting of (in wt-%): C 0.08-0.40, N 0.015-0.30, C+N 0.30-0.50, Cr 1-4, Mo 1.5-3, V 0.8-1.3, Mn 0.5-2, Si 0.1-0.5, optionally Ni<3, Co≦5, B<0.01, Fe balance apart from impurities, and a process for making a low-chromium hot-work tool steel article having increased tempering resistance. | 02-27-2014 |
| 20140065003 | NOVEL METHOD OF IMPROVING THE MECHANICAL PROPERTIES OF POWDER METALLURGY PARTS BY GAS ALLOYING - The following specification describes a process for improving the hardness and other mechanical properties of iron and steel Powder Metallurgy (P/M) parts. The first stage of the novel process consists of heating to and holding at a temperature between 590° C. to 720° C. unalloyed or low alloyed P/M parts in an atmosphere containing a Nitrogen donor such as Ammonia in either batch or continuous furnaces. The concentration of ammonia during the first stage is maintained between 3% to 15%. The second stage of the inventive process is an ‘aging’ process which may be conducted either as an in-line process or as a stand-alone independent process that involves the heating of P/M parts that have fully or partially cooled after the first stage to a temperature between 180° C. and 660° C. in an atmosphere of plain air or Nitrogen. The first stage may be performed in varying concentrations of the nitrogen donor wherein the temperature and time duration may also be varied to control the depth of hardening in the said part. The conditions may be optimized to achieve through hardness of the part without embrittllement. The optional stage two of the technology is an aging process that does not involve “quenching,” thereby significantly lowering distortion of treated parts and eliminating pollution associated with liquid quenching. The technology improves process economy by using low temperatures and consequently fuel consumption. | 03-06-2014 |
| 20140086783 | PROCESS FOR MANUFACTURING A REINFORCED ALLOY BY PLASMA NITRIDING - Process for manufacturing a reinforced alloy comprising a metallic matrix, dispersed in the volume of which are nanoparticles, at least 80% of which have a mean size from 1 nm to 50 nm, the nanoparticles comprising at least one nitride chosen from the nitrides of at least one metallic element M belonging to the group consisting of Ti, Zr, Hf and Ta. The process comprises the following successive steps: a) plasma nitriding of a base alloy is carried out at a temperature from 200° C. to 700° C. in order to insert interstitial nitrogen therein, the base alloy incorporating 0.1% to 1% by weight of the metallic element M and being chosen from an austenitic, ferritic, ferritic-martensitic or nickel-based alloy; b) the interstitial nitrogen is diffused within the base alloy at a temperature of 350° C. to 650° C.; and c) the nitride is precipitated at a temperature from 600° C. to 900° C. over a duration of 10 minutes to 10 hours, in order to form the nanoparticles dispersed in the reinforced alloy. | 03-27-2014 |
| 20140212319 | TITANIUM ALLOY MEMBER AND PRODUCTION METHOD THEREFOR - A high strength titanium alloy member with superior fatigue resistance, and a production method therefor, are provided. The production method includes preparing a raw material made of titanium alloy, nitriding the raw material to form a nitrogen-containing raw material by generating a nitrogen compound layer and/or a nitrogen solid solution layer in a surface layer of the raw material, mixing the raw material and the nitrogen-containing raw material to yield a nitrogen-containing mixed material, sintering the nitrogen-containing mixed material to obtain a sintered titanium alloy member by bonding the material together and uniformly diffusing nitrogen in solid solution from the nitrogen-containing raw material to the entire interior portion of the sintered titanium alloy member, hot plastic forming and/or heat treating the sintered titanium alloy member to obtain a processed member, and surface treating the processed member to provide compressive residual stress. | 07-31-2014 |
| 20140356215 | HEAT-RESISTANT ALLOY AND METHOD OF MANUFACTURING THE SAME - Provided is a heat-resistant alloy that satisfies physical properties such as proof stress and hardness adapted to an increase in the melting point of a welding object compared to conventional alloys. | 12-04-2014 |
| 20160184896 | Composition Of Particulate Materials And Process For Obtaining Self-Lubricating Sintered Products - The metallurgical composition comprises a main particulate metallic material, for example iron or nickel, and at least one alloy element for hardening the main metallic material, which form a structural matrix; a particulate solid lubricant, such as graphite, hexagonal boron nitride or mixture thereof; and a particulate alloy element which is capable of forming, during the sintering of the composition conformed by compaction or by injection molding, a liquid phase, agglomerating the solid lubricant in discrete particles. The composition may comprise an alloy component to stabilize the alpha-iron matrix phase, during the sintering, in order to prevent the graphite solid lubricant from being solubilized in the iron. The invention further refers to the process for obtaining a self-lubricating sintered product. | 06-30-2016 |
