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| Number | Title | Issue Date |
| 7002159 | Boron coated straw neutron detector A neutron detector technology based on 10B thin film conversion of neutrons and detection of neutron capture reaction products in a counter gas within a thin straw tube detector body is described. This neutron detector is based on gas-filled thin wall str... | 02/21/2006 |
| 6760396 | Coated metal articles and method of making The method of protectively coating metallic uranium which comprises dipping the metallic uranium in a molten alloy comprising about 20-75% of copper and about 80-25% of tin, dipping the coated uranium promptly into molten tin, withdrawing it from the molten tin and ... | 07/06/2004 |
| 6687324 | Coated metal articles A metallic uranium article having a protective coating of a copper-tin alloy containing from 45 to 50% by weight of copper and from 55 to 50% by weight of tin, said alloy being firmly bonded to the metallic uranium.... | 02/03/2004 |
| 6609296 | Method of making a printed circuit board having filled holes and a fill member for use therewith including reinforcement means A method of making a circuitized substrate such as a printed circuit board having at least one hole therein which comprises the steps of providing a layer of dielectric, forming at least one (and preferably several) holes therein, providing a fill member ... | 08/26/2003 |
| 6222898 | Jacketing process A method of jacketing a uranium slug to an aluminum container comprising applying a coating to the exterior of the container, the coating consisting of colloidal graphite in water, permitting the coating to dry, applying an alloy of aluminum and silicon t... | 04/24/2001 |
| 6201846 | Method of jacketing A method of jacketing a body of fissionable material within a nonfissionable jacket having a cup-shaped body open at one end and a cap effecting closure at said end comprising the steps of inserting the cup-shaped body into a tightly fitting cup-shaped sl... | 03/13/2001 |
| 6190725 | Coating method for the preparation of coated nuclear fuels with carbides borides or nitrides by using high temperature and high pressure combustion synthesis The present invention relates to a coating method for the preparation of a coated nuclear fuel. Particularly, the present invention relates to the coating method of nuclear fuel surface with more than two coated layers of carbides, borides or nitrides and... | 02/20/2001 |
| 6081574 | Void forming pyrolytic carbon coating process A pyrolytic carbon coated nuclear fuel particle and method of making it. The fuel particle has a core composed of a refractory compound of an actinide metal. The pyrolytic carbon coating surrounds the core so as to provide a void volume therebetween. The ... | 06/27/2000 |
| 5895692 | Manufacturing of organic electroluminescent device A process for manufacturing an organic electroluminescent device, including the steps of sequentially forming a hole transport layer, a bipolar transport layer at need, and an electron transport layer on a transparent electrode side of a transparent subst... | 04/20/1999 |
| 5805655 | Protective coating to reduce stress corrosion cracking in zirconium alloy sheathing A protective coating to reduce stress corrosion cracking of zirconium alloy sheathing in nuclear reactors. The coating is graphite based and includes ZrO2 and ethyl cellulose and acts as a sacrificial layer to immobilize fission products by for... | 09/08/1998 |
| 5763734 | Method for containing or removing contaminants from a substrate A method for containing or removing contamination from a substrate includes applying a material such as a polyurea elastomer to the contaminated substrate. Preferably, the material sets in less than about 1 hour and is substantially unaffected by exposure... | 06/09/1998 |
| 5545427 | Process for the preparation of lithium aluminosilicate or gamma lithium aluminate ceramics having a controlled stoichiometry and microstructure This invention relates to a process for the preparation of lithium aluminosilicate or gamma lithium aluminate ceramics having a controlled microstructure and stoichiometry. According to this process, mixing takes place accompanied by stirring in a short c... | 08/13/1996 |
| 5498442 | Fluidized bed reactor and method for forming a metal carbide coating on a substrate containing graphite or carbon A fluidized bed reactor arrangement and method for forming a metal carbide coating on a substrate containing graphite in which a bed of particles inclusive of the substrate is fluidized using a fluidizing gas containing a metal halide vapor formed by reac... | 03/12/1996 |
| 5434896 | Wear resistant coating for components of fuel assemblies and control assemblies, and method of enhancing wear resistance of fuel assembly and control assembly components using wear-resistant coating A wear resistant coating (50) for a component of a nuclear reactor fuel assembly or control assembly comprising a ceramic material (52) which is premixed with a glass (54). The coating is applied to components of the nuclear reactor vessel, or portions th... | 07/18/1995 |
| 5414197 | Method of containing and isolating toxic or hazardous wastes A method of containing hazardous and toxic wastes includes the steps of irporating the dried waste, in a salt form, in melted polymer, such as asphalt, and forming the waste salt and asphalt blend into aggregate pellets. The pellets are coated with a pow... | 05/09/1995 |
| 5318730 | Process for containment of hazardous wastes A method and composition for stabilizing and isolating hazardous, radioactive or mixed waste materials of particulate and solid types, which comprises providing a non-toxic one component aqueous mixture of an acrylic polymer containing a thixotropic agent... | 06/07/1994 |
| 5280510 | Microparticle coating on inside of fuel rods and other fuel assembly components A method for coating the inside surface (18) of tubular components (16) of a nuclear fuel assembly, including the steps of supporting the component within a vacuum chamber (12), positioning a source rod (20) having a field emitter structure (22) within th... | 01/18/1994 |
| 5278882 | Zirconium alloy with superior corrosion resistance A stabilized alpha metal matrix provides an improved ductility, creep strength, and corrosion resistance against irradiation in a zirconium alloy containing on a weight percentage basis tin in a range of 0.4 to 1.0 percent and typically 0.5; iron in a ran... | 01/11/1994 |
| 5274686 | Anodic vacuum arc deposition A method for enhancing the wear and corrosion resistance of a tubular nuclear fuel assembly component (40), comprising the step of coating the component with a corrosion and wear resistant material by an anodic arc plasma deposition process (70). The coat... | 12/28/1993 |
| 5268946 | Wear resistant coating for fuel cladding A wear resistant coating (50) for fuel rod cladding (20) comprises a ceramic material (52) which is premixed with a glass (54). The cladding tube is heated and the ceramic/glass mixture is flame sprayed onto the cladding tube. The coating is applied to lo... | 12/07/1993 |
| 5242631 | Method for coating nuclear fuel pellets A method for coating a nuclear fuel pellet is provided in which a liquid sol is formed containing the makings of a rare earth metal oxide. The liquid sol is applied to the exterior surface of the nuclear fuel pellet and the pellet is baked to form a solid... | 09/07/1993 |
| 5227129 | Method for applying corrosion resistant metallic coating of zirconium nitride A corrosion resistant metallic coating (60) of zirconium nitride is applied to the cladding tube (40) of a nuclear fuel rod (20). The zirconium nitride is reactively deposited on a zirconium-alloy cladding tube by a cathodic arc plasma deposition process.... | 07/13/1993 |
| 5171520 | Wear resistant coating for fuel cladding A wear resistant coating (50) for fuel rod cladding (20) comprises a ceramic material (52) which is premixed with a glass (54). The cladding tube is heated and the ceramic/glass mixture is flame sprayed onto the cladding tube. The coating is applied to lo... | 12/15/1992 |
| 5164123 | Encapsulation of toxic waste A method of encapsulating a toxic material with a resinous plastic wherein the toxic material is admixed and coated with the resinous plastic to result in an encapsulated product having a protective skin thereover. The method involves an extrusion step fo... | 11/17/1992 |
| 5137683 | Process for forming a chromium oxide insulating layer between the pellets and the cladding of a nuclear fuel element, and fuel element having such an insulating layer An organometallic chromium compound in the gaseous phase is brought into contact with a substrate consisting of the inner surface of the zirconium alloy tubular cladding (5) of the fuel element, or the outer surface of the pellets of fuel material, the su... | 08/11/1992 |
| 5069888 | Process for passivating uranium oxides to control oxidation A method of passivating the surface of particulate uranium oxides is disclosed comprising a process of continuously contacting uranium oxide particles with an oxygen containing and cooling counter flowing gas stream. The treatment produces a protective su... | 12/03/1991 |
| 5063001 | Method of compacting radioactive metal wastes A method of compacting radioactive metal wastes comprising enclosing the radioactive metal waste in vacuo in a capsule, placing the capsule into a pressure container, and subjecting the capsule to an increased pressure at a high temperature to compact the... | 11/05/1991 |
| 4963758 | Method of making compacts containing precise amounts of nuclear fuel Methods for making nuclear fuel compacts containing precise amounts of nuclear fuel material which exhibit low heavy metal contamination and fewer defective coatings following compact fabrication using a hardenable binder including petroleum pitch or the ... | 10/16/1990 |
| 4943394 | Method of storing radioactive waste without risk of hydrogen escape In order to prevent the formation of a hydrogen atmosphere in a free gas ce usually available in the storage containers of radioactive waste, potassium permanganate is dispersed in a suitable carrier within the storage barrel provided for the waste. When... | 07/24/1990 |
| 4927564 | Method for conditioning radioactive or toxic wastes in thermosetting resins The invention concerns a method for conditioning in a thermosetting resin a quantity of waste stored in water. According to the invention, a liquid hardening agent, immiscible with water and having a density greater than that of the water, is used in order to ... | 05/22/1990 |
| 4917857 | Process for producing metallic or ceramic hollow-sphere bodies Metallic or ceramic hollow spheres are produced by applying a solid layer to a substantially spherical particle of foamed polymer and the coated polymer cores are pyrolyzed with formation of vapor. In order to permit an economical production of the hollow... | 04/17/1990 |
| 4857359 | Process for overcoating granular materials A process for overcoating granules with overcoating material in a granulator by providing the inside surface of the granulator, before introduction of the granules, with a layer of the overcoating material in a thickness of 0.1 to 1 mm, maintaining a pres... | 08/15/1989 |
| 4764305 | Process for the conditioning of radioactive or toxic waste in epoxy resins and polymerizable mixture with two liquid constituents usable in this process The invention relates to a process for the conditioning of radioactive or toxic waste in epoxy resins and a polymerizable mixture with two liquid constituents usable in this process. This process consists of incorporating the waste into a polymerizable mi... | 08/16/1988 |
| 4751098 | Reoxidation of partially oxidizable powders Disclosed is a method of reoxidizing a partially oxidizable metal or metal oxide powder. The powder is spread on a first sloped trough to form a layer of less than about a half inch in thickness. The layer of powder slides down the trough and falls onto a... | 06/14/1988 |
| 4701379 | Boron hydride polymer coated substrates A method is disclosed for coating a substrate with a uniformly smooth layer of a boron hydride polymer. The method comprises providing a reaction chamber which contains the substrate and the boron hydride plasma. A boron hydride feed stock is introduced i... | 10/20/1987 |
| 4695476 | Process for coating the internal surface of zirconium tubes with neutron absorbers A process for forming a boron-containing coating on the internal surface of a zirconium or zirconium alloy hollow tube by heating the internal surface to a temperature of between 200°-450° C. and passing through the tube a mixture of a volatilized boron... | 09/22/1987 |
| 4675153 | Zirconium alloy fuel cladding resistant to PCI crack propagation Described herein is a composite nuclear fuel rod cladding tube which includes two concentric layers of zirconium base alloys metallurgically bonded to each other. The outer layer is composed of a conventional zirconium base alloy having high strength and ... | 06/23/1987 |
| 4673585 | Process for the preparation of the surface of uranium or uranium-based alloy parts Process for the preparation of the surface of a uranium or uranium alloy part. It comprises a stage of chemically etching the surface of the uranium or uranium alloy part by means of a solution of nickel chloride and hydrochloric acid. The etching solutio... | 06/16/1987 |
| 4668444 | Process for the production of isotrophic spherical fuel or absorber elements for high temperature reactors Substantially isotropic spherical fuel and absorber elements for high temperature reactors are produced by molding corresponding fuel particles and graphite molding compositions. There is used as graphite molding powder a mixture of graphitized granules o... | 05/26/1987 |
| 4666639 | Process for the production of spherical fuel elements To produce spherical fuel or absorber elements for high temperature reactors a mixture of coated nuclear fuel or absorber particles and graphite molding composition is molded into spheres, carbonized in a furnace having gas flushing and calcined in a vacu... | 05/19/1987 |
