Class / Patent application number | Description | Number of patent applications / Date published |
148281000 | Metal substrate contains elemental Ti, Zr, Nb, Ag, Ta, or W or alloy thereof | 14 |
20090000700 | TREATMENT METHOD FOR OPTICALLY TRANSMISSIVE BODY - A method of treating a transmissive body of zinc sulfide or zinc selenide includes placing a non-platinum metal layer, such as a layer of cobalt, silver, or iron on a surface of the transmissive body, and improving the optical properties of the transmissive body by subjecting the body and the layer to an elevated temperature and elevated pressure. The zinc sulfide or zinc selenide may be chemical vapor deposited material. The non-platinum metal of the layer may be such that a Gibbs free energy of formation of a most stable sulfide (or selenide) of the non-platinum metal is more negative than a Gibbs free energy of formation of a most stable zinc sulfide (or zinc selenide) configuration that is thermodynamically capable of reacting with the non-platinum metal. With this condition the non-platinum metal preferentially chemically bonds with free sulfur (or free selenium) in preference to zinc sulfide (or zinc selenium). | 01-01-2009 |
20090020187 | METHOD AND APPARATUS FOR PROTECTING METAL FROM OXIDATON - An apparatus and process for protecting metal from oxidation during metal forming operations. A salt is deposited onto at least a portion of a surface of the metal. The salt is heated in a protective environment until the salt melts on the metal to form a coated metal. The protective environment may then be removed and the coated metal may be exposed to an active environment. The coated metal may then be formed using standard metal forming processes. In alternative embodiments salts are selected for particular melting and vaporizing temperatures. An automated apparatus for coating a metal object with a salt may be provided. An applicator is configured to deposit the salt onto a surface of the metal object to form a salted metal object. A furnace is configured to receive the salted metal object and to melt at least a portion of the salt on the surface of the salted metal object. A conveyor system is configured to transport the metal object into and out of the applicator and configured to transport the salted metal object into and out of the furnace. | 01-22-2009 |
20090199932 | COMPOSITE ARTICLE AND METHOD - Method, and articles therefrom, for providing a hard, abrasion-resistant, attractive, oxide surface layer of selectable thickness and having an outer appearance within the scale from gray to blackness, to a zirconium titanium alloy article by heating the article in an oxygen containing atmosphere. | 08-13-2009 |
20090211667 | SURFACE TREATMENT METHOD OF TITANIUM MATERIAL FOR ELECTRODES - Disclosed herein is a surface treatment method of a titanium material for electrodes characterized by including: a titanium oxide layer formation step S | 08-27-2009 |
20100032061 | METHOD FOR MANUFACTURING A Ni-BASED ALLOY ARTICLE AND PRODUCT THEREFROM - A method for manufacturing a Ni-based alloy article which elutes little Ni even when used in a high-temperature water environment for a long period comprises heating the Ni-based alloy in a carbon dioxide-containing atmosphere for a set period of time at an elevated temperature to form an oxide film comprising chromium oxide on a surface thereof. Using carbon dioxide as an oxidizing gas produces an oxide film of generally uniform thickness along a length of the article being treated so that resistance to nickel elution is more uniform over the entire article. | 02-11-2010 |
20100252146 | TITANIUM ALUMINIDE INTERMETALLIC ALLOYS WITH IMPROVED WEAR RESISTANCE - The invention is directed to a method for producing a titanium aluminide intermetallic alloy composition having an improved wear resistance, the method comprising heating a titanium aluminide intermetallic alloy material in an oxygen-containing environment at a temperature and for a time sufficient to produce a top oxide layer and underlying oxygen-diffused layer, followed by removal of the top oxide layer such that the oxygen-diffused layer is exposed. The invention is also directed to the resulting oxygen-diffused titanium aluminide intermetallic alloy, as well as mechanical components or devices containing the improved alloy composition. | 10-07-2010 |
20110024002 | METHOD OF PROCESSING METALLIC MATERIAL FOR A CONDUCTIVE MEMBER CELL AND A METHOD OF ADJUSTING SURFACE ROUGHNESS OF THE METALLIC MATERIAL - A method of processing a metallic material includes immersing ferritic stainless steel or austenitic stainless steel in an acid solution containing hydrochloric acid in an amount of two times or more relative to the concentration of nitric acid or an acid solution containing hydrofluoric acid in an amount of one and a half times or more relative to the concentration of nitric acid to adjust surface roughness of the metallic material. | 02-03-2011 |
20110108165 | RAPID THERMAL TREATMENT FOR COLORING SURGICAL NEEDLES - An apparatus for thermally treating and coloring a plurality of curved suture needles. The apparatus includes a conveyer for transferring the plurality of curved suture needles from a source of curved suture needles to a receiver, a housing positioned adjacent the conveyer, the housing having a first end, a second end, and an opening running from the first end to the second end, the opening aligned with the conveyer to enable the plurality of curved suture needles to pass therethrough, a heat source located within the housing for heating the plurality of curved suture needles as the plurality of curved suture needles are transferred by the conveyer from the first end of the housing to the second end of the housing and a system for providing a gas mixture containing a fractional concentration of oxygen to oxidize and colorize the surfaces of the plurality of curved suture needles as the plurality of suture needles pass through the housing. A process for thermally treating and coloring a plurality of curved suture needles to colorize and enhance the stiffness and yield moment of the curved suture needles is also provided. | 05-12-2011 |
20110308669 | METHOD FOR MANUFACTURING METAL PIPE - In this method, the inner surface of a metal pipe containing, by mass percent, 20 to 55% of Cr and 20 to 70% of Ni is subjected to mechanical treatment, the metal pipe is subjected to heat treatment such as to be held in a temperature range of 1050 to 1270° C. for 0.5 to 60 minutes, and thereby an oxide scale layer consisting mainly of Cr is formed on at least the inner surface of the metal pipe. A metal pipe excellent in carburization resistance and coking resistance in a carburizing gas environment can be obtained by the method. | 12-22-2011 |
20120125488 | Method of producing a plasma-resistant thermal oxide coating - A method of creating a plasma-resistant thermal oxide coating on a surface of an article, where the article is comprised of a metal or metal alloy which is typically selected from the group consisting of yttrium, neodymium, samarium, terbium, dysprosium, erbium, ytterbium, scandium, hafnium, niobium or combinations thereof. The oxide coating is formed using a time-temperature profile which includes an initial rapid heating rage, followed by a gradual decrease in heating rate, to produce an oxide coating structure which is columnar in nature. The grain size of the crystals which make up the oxide coating is larger at the surface of the oxide coating than at the interface between the oxide coating and the metal or metal alloy substrate, and the oxide coating is in compression at the interface between the oxide coating and the metal or metal alloy substrate. | 05-24-2012 |
20120216921 | COMPOSITE ARTICLE AND METHOD - Method, and articles therefrom, for providing a hard, abrasion-resistant, attractive, oxide surface layer of selectable thickness and having an outer appearance within the scale from gray to black, to a zirconium titanium alloy article by heating the article in an oxygen containing atmosphere. | 08-30-2012 |
20120273091 | SILICON-CONTAINING STEEL COMPOSTITION WITH IMPROVED HEAT EXCHANGER CORROSION AND FOULING RESISTANCE - A method of providing sulfidation corrosion resistance and corrosion induced fouling resistance to a heat transfer component surface includes providing a silicon containing steel composition including an alloy and a Si-partitioned non-metallic film formed on a surface of the alloy. The alloy is formed from the composition η, θ, and t, in which η is a metal selected from the group consisting of Fe, Ni, Co, and mixtures thereof, θ is Si, and t is at least one alloying element selected from the group consisting of Cr, Al, Mn, Ti, Zr, Hf, V, Nb, Ta, Mo, W, Sc, La, Y, Ce, Ru, Rh, Ir, Pd, Pt, Cu, Ag, Au, Ga, Ge, As, In, Sn, Sb, Pb, B, C, N, P, O, S and mixtures thereof. The Si-partitioned non-metallic film comprises at least one of sulfide, oxysulfide and mixtures thereof. | 11-01-2012 |
20140076462 | METHOD FOR PASSIVATING TANTALUM METAL SURFACE AND APPARATUS THEREOF - A method for passivating tantalum metal surface is provided, the method comprises cooling tantalum metal to or below 32° C. and/or passivating tantalum metal surface by oxygen-containing gas with a temperature of 0° C. or below. Also provided is an apparatus for passivating tantalum metal surface for applying the method, comprising a heat treatment furnace, an argon forced-cooling device and/or a device for cooling oxygen-containing gas. | 03-20-2014 |
20150107721 | METHODS OF PREPARING A SURFACE OF A CAST ZIRCONIUM ALLOY SUBSTRATE FOR OXIDATION - Methods of preparing a surface of a cast zirconium alloy substrate for oxidation, the method including hot isostatic pressing a cast substrate of near shape dimensions, heating the cast substrate, machining the cast substrate to desired shape dimensions, and treating the surface of the cast substrate to accept an oxide layer. in some examples, treating the surface of the cast substrate may include polishing the surface, peening the polished surface, and finishing the peened surface. Additional or alternative examples may include heat treating a cast substrate of near shape dimensions to define a homogenized grain structure within the cast substrate, machining the heat treated cast substrate to desired shape dimensions, and surface treating the machined cast substrate to modify its structure to define a recrystallized modified grain structure defining a reduced grain boundary size. | 04-23-2015 |