Did You Know...
...that a workman who left the soap mixing machine on too long was responsible for making Ivory Soap? He was so embarrassed by his mistake that he threw the mess in a stream. Imagine his dismay when the evidence of his error floated to the surface! Result: Ivory soap, the soap that floats.
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| Number | Title | Issue Date |
| 7695573 | Method for processing alloys via plasma (ion) nitriding A surface processing method and power transmission component includes transforming a surface region of a metal alloy into a hardened surface region at a temperature that is less than a heat treating temperature of the metal alloy. The metal alloy includes about 11.1... | 04/13/2010 |
| 7438769 | Process for diffusing titanium and nitride into a material having a coating thereon A method for diffusing titanium and nitride into a base material having a coating thereon using conventional surface treatments or coatings. The method generally includes the steps of providing a base material having a coating thereon; providing a salt bath which in... | 10/21/2008 |
| 7344675 | Method for preparing nanostructured metal alloys having increased nitride content A method of producing high strength nanophase metal alloy powder by cryomilling metal powder under conditions which cause the formation of intrinsic nitrides, and of producing high strength metal articles by subjecting the nitrided cryomilled powder to thermo-mechan... | 03/18/2008 |
| 7261914 | Method and apparatus for forming a nitride layer on a biomedical device This invention is a method of forming a nitride layer on at least one metal or metal alloy biomedical device, comprising: providing a vacuum chamber with at least one biomedical device positioned thereon on a worktable within the vacuum chamber; reducing the pressur... | 08/28/2007 |
| 7259091 | Technique for forming a passivation layer prior to depositing a barrier layer in a copper metallization layer By performing a wet chemical process after etching a via, contaminations may be removed and a thin passivation layer may be formed that may then be readily removed in a subsequent sputter etch process for forming a barrier/adhesion layer. In a particular embodiment,... | 08/21/2007 |
| 7077867 | Prosthetic knee joint having at least one diamond articulation surface Prosthetic joints, components for prosthetic joints, superhard bearing and articulation surfaces, diamond bearing and articulation surfaces, substrate surface topographical features, materials for making joints, bearing and articulation surfaces, and methods for man... | 07/18/2006 |
| 7070687 | Apparatus and method of surface treatment for electrolytic and electroless plating of metals in integrated circuit manufacturing Apparatus and method for treating a surface of a substrate for electrolytic or electroless plating of metals in integrated circuit manufacturing. In one embodiment the method includes forming a barrier layer on a substrate. A metal-seed layer is then formed on the b... | 07/04/2006 |
| 7067424 | Method of manufacturing an electronic device The present invention provides for a method of providing copper metallization on a semiconductor body, including the step of depositing copper in a nitrogen-containing atmosphere so as to form a nitrogen-containing copper seed layer and forming the copper metallizat... | 06/27/2006 |
| 7030023 | Method for simultaneous degas and baking in copper damascene process A method for forming a copper damascene feature including providing a semiconductor process wafer including at least one via opening formed to extend through a thickness of at least one dielectric insulating layer and an overlying trench line opening encompassing th... | 04/18/2006 |
| 6951786 | Method of forming a stack of refractory metal nitride over refractory metal silicide over silicon The invention encompasses methods of forming silicide interconnects over silicon comprising substrates. In one implementation, a first layer comprising a metal and a non-metal impurity is formed over a region of a silicon comprising substrate where a silicide interc... | 10/04/2005 |
| 6929757 | Oxidation-resistant magnetorheological fluid A magnetorheological fluid containing magnetorheological particles which are resistant to oxidation having regions rich in diffused nitrogen located therein and a method for producing such magnetorheological fluid. ... | 08/16/2005 |
| 6830700 | Method and device for removing particles from liquid A method and device for removing particulate matter from a liquid medium, especially a molten salt bath. The structure includes a device for capturing and removing particulate matter from a liquid medium. In operation, the device is inserted into the liquid having t... | 12/14/2004 |
| 6627856 | Moveable heat exchanger Disclosed is a moveable heat exchanger for use with a high temperature chamber, such as for instance a nitriding furnace. The heat exchanger is between a first position external to the furnace, and a second position in which the heat exchanger projects su... | 09/30/2003 |
| 6589368 | High melting point metal based alloy material having high toughness and strength The present invention provides a refractory-metal-based alloy material having a remarkably enhanced toughness and strength, by internally nitriding a nitride-forming metal element incorporated as a solid solution into an alloy worked piece, which has a pa... | 07/08/2003 |
| 6554914 | Passivation of copper in dual damascene metalization The present invention pertains to systems and methods for passivating the copper seed layer deposited in Damascene integrated circuit manufacturing. More specifically, the invention pertains to systems and methods for depositing the copper seed layer by p... | 04/29/2003 |
| 6530998 | Formed article of amorphous alloy having hardened surface and method for production thereof A ceramic hard layer is formed on the surface of a formed article by subjecting the formed article of a substantially amorphous alloy to a heat treatment in an atmosphere containing a reactive gas under the conditions of temperature and time falling withi... | 03/11/2003 |
| 6524401 | Process for nitriding an aluminum-containing substrate While a nitride film is formed on a substrate containing metallic aluminum, a fluctuation in forming nitride film can be prevented, or the formation of the nitride film can be accelerated. A substrate containing at least metallic aluminum is subjected to ... | 02/25/2003 |
| 6451129 | Titanium-base decoration member and method for curing the same A decorative titanium material according to the present invention eliminates a deterioration of the appearance even after processing, that is, provides a small surface roughness, and has a hardened layer of titanium at the surface of the titanium material... | 09/17/2002 |
| 6364965 | Aluminum-containing member and a method for producing such an aluminum-containing member A method for producing an aluminum-containing member, comprising the steps of heating a substrate containing at least metallic aluminum in vacuum of not more than 10-3 torrs, and continuing with the heating step, forming a nitride in a surface ... | 04/02/2002 |
| 6328819 | Method and use of an apparatus for the thermal treatment, in particular nitriding treatment, of metal workpieces A method is provided for heat treatment of metal workpieces obtain a substantially uniform nitride layer, even in workpieces comprising high alloy iron articles. The following method steps are provided: a) heating the workpieces to a temperature between 400° ... | 12/11/2001 |
| 6221173 | Titanium or titanium alloy member and surface treatment method therefor Disposing the titanium or titanium alloy in a vacuum vessel, and applying annealing treatment thereto by heating (a heating process); feeding a mixed gas consisting primarily of nitrogen with a trace of oxygen component into the vessel, and heating inside... | 04/24/2001 |
| 6168694 | Methods for and products of processing nanostructure nitride, carbonitride and oxycarbonitride electrode power materials by utilizing sol gel technology for supercapacitor applications Metal nitride, carbonitride, and oxycarbonitride powder with high surface area (up to 150 m2 /g) is prepared by using sol-gel process. The metal organic precursor, alkoxides or amides, is synthesized firstly. The metal organic precursor is modi... | 01/02/2001 |
| 6129988 | Gaseous modification of MCrAlY coatings The present invention generally describes methods for modifying MCrAlY coatings by using gaseous carburization, gaseous nitriding or gaseous carbonitriding. The modified MCrAlY coatings are useful in thermal barrier coating systems, which may be used in g... | 10/10/2000 |
| 6117249 | Treating metallic machine parts A method of treating a metallic machine part to increase wear life and to change surface appearance comprising the steps of roughening the surface, thereafter changing its color by case hardening and, subsequently, increasing the lubricity of the case har... | 09/12/2000 |
| 6090223 | Chromium nitride film and method for forming the same By forming a Cr playing layer on the surface of a metal and forming a CrN film by nitriding the surface thereof, it is possible to improve the surface hardness, wear resistance, corrosion resistance, etc., of the metal; wherein the nitriding treatment of ... | 07/18/2000 |
| 6086684 | Electric discharge surface treating method and apparatus A surface treating is performed by an electric discharge. The electric discharge is generated by applying a voltage between an electrode and a metal workpiece. The electrode is a solid or green compact electrode or the like which is made of a reforming ma... | 07/11/2000 |
| 6074494 | Surface nitriding method of an aluminum material, and an auxiliary agent for nitriding This invention aims to provide a nitriding method of forming a relatively thick nitride layer on the surface of an aluminum material containing silicon, and an auxiliary agent for nitriding. By using a nitriding auxiliary agent mainly comprising aluminum ... | 06/13/2000 |
| 6020025 | Method of manufacturing a crank shaft A crank shaft is constructed only at the surface layer of a journal portion with a hard nitride layer, so that the resultant crank shaft is available at a low cost, not so heavy and excellent in durability in comparison with a case employing a hard materi... | 02/01/2000 |
| 5916383 | Method of shot peening a hardened metal product with shot having high hardness A method for shot peening a hard metal product that has a hardened surface. The method includes projecting shot on the hardened surface of the hard metal product. The ratio of the Vickers hardness of the shot to that of the hardened surface is 0.8-1.6, an... | 06/29/1999 |
| 5912399 | Chemical synthesis of refractory metal based composite powders A new tungsten compound is formed by reacting ammonium metatungstate with guanidine carbonate. Such a compound can be converted to metallic tungsten, tungsten carbide or oxycarbide, and tungsten nitride or oxynitride. One can also make multiphase composit... | 06/15/1999 |
| 5888269 | Nitriding agent A case nitrided aluminum product is produced by contacting an aluminum product with a nitriding agent at a part of a surface thereof at least, and by nitriding the aluminum product at the surface with an ambient gas at a temperature of a melting point of ... | 03/30/1999 |
| 5865908 | Composite diffusion type nitriding method, composite diffusion type nitriding apparatus and method for producing nitride A composite diffusion type nitriding method and a composite diffusion type nitriding apparatus of the present invention are effectively used for nitriding various materials, such as machine parts, as well as a material which is difficult for nitriding by ... | 02/02/1999 |
| 5776264 | Method for producing amorphous based metals Amorphous tungsten, cobalt, nickel, molybdenum, iron and alloys thereof can be formed by reducing metal-containing compositions to form the elemental metal wherein the particle size of the elemental metal is less than about 80 microns. This is oxidized in... | 07/07/1998 |
| 5645944 | Application of molybdenum alloys The invention relates to the application of molybdenum alloys, which are superficially hardened by means of nitriding, for female dies and comparable construction components for extruding light and nonferrous metals. It is possible through the application... | 07/08/1997 |
| 5599404 | Process for forming nitride protective coatings A substrate material to be coated with either a nitride, carbide, or oxide contains a small percent of a specific reactive element, like titanium, which forms very stable nitrides, carbides, or oxides. The material also contains larger percentages of elem... | 02/04/1997 |
| 5593511 | Method of nitridization of titanium thin films Titanium films are nitrided at temperatures less than 650° C., and preferably between 400° C. and 500° C., by treating the titanium film with a plasma formed from a nitriding gas at elevated temperatures. The plasma is created by subjecting the nitridi... | 01/14/1997 |
| 5582655 | Case nitrided aluminum product, process for case nitriding the same, and nitriding agent for the same A case nitrided aluminum product is produced by contacting an aluminum product with a nitriding agent at a part of a surface thereof at least, and by nitriding the aluminum product at the surface with an ambient gas at a temperature of a melting point of ... | 12/10/1996 |
| 5580397 | Carbide and carbonitride surface treatment method for refractory metals A carbide and carbonitride surface treatment method for refractory metals is provided, in steps including, heating a part formed of boron, chromium, hafnium, molybdenum, niobium, tantalum, titanium, tungsten or zirconium, or alloys thereof, in an evacuate... | 12/03/1996 |
| 5514225 | Case nitrided aluminum product, process for case nitriding the same, and nitriding agent for the same A case nitrided aluminum product is produced by contacting an aluminum product with a nitriding agent at a part of a surface thereof at least, and by nitriding the aluminum product at the surface with an ambient gas at a temperature of a melting point of ... | 05/07/1996 |
| 5505791 | Process of producing nitrided and hardened nickel alloy products The present invention relates to nickel alloy products with their surfaces nitrided and hardened which are formed by pressure casting nickel alloy material, and nitrided and hardened layers are formed in surface layers. Since the nitrided and hardened sur... | 04/09/1996 |
