Matches 1 - 49 out of 49


Match Document Document Title
US20120177169 Core of Light Water Reactor and Fuel Assembly  
A core of a light water reactor having a plurality of fuel assemblies, which are loaded in said core, having nuclear fuel material containing a plurality of isotopes of transuranium nuclides, an...
US20120263271 NUCLEAR FUEL  
A nuclear fuel pellet design that is a cylindrical axial profile with either a larger radius or conical shaped ends such that the as built diameter at the ends of the pellet are slightly smaller...
US20130322590 EXTENSION OF METHODS TO UTILIZE FULLY CERAMIC MICRO-ENCAPSULATED FUEL IN LIGHT WATER REACTORS  
A 12×12 fully ceramic micro-encapsulated fuel assembly for a light water nuclear reactor includes a set of FCM fuel rods bundled in a square matrix arrangement. The fully ceramic...
US20120020447 OPTIMIZED FUEL ASSEMBLY CHANNELS AND METHODS OF CREATING THE SAME  
Fuel assemblies include an outer channel having a physical configuration optimized for a position of the fuel assembly within a core of a nuclear reactor. The position of the fuel assembly with...
US20140185730 URANIUM DIOXIDE NUCLEAR FUEL PELLET HAVING CERAMIC MICROCELLS AND FABRICATING METHOD THEREOF  
A uranium dioxide nuclear fuel pellet has about 50 to about 400 μM (with respect to a 3-dimentional size) microcells formed of a ceramic material having a chemical attraction with fission products...
US20110299645 Breeding Nuclear Fuel Mixture Using Metallic Thorium  
Disclosed is a breeding nuclear fuel mixture including metallic thorium useable in a nuclear power plant, prepared by mixing uranium dioxide (UO2) or plutonium dioxide (PuO2) having ceramic...
US20150170767 FULLY CERAMIC MICRO-ENCAPSULATED (FCM) FUEL FOR CANDUs AND OTHER REACTORS  
A fuel pellet for a nuclear reactor includes a plurality of tristructural-isotropic fuel particles embedded in a structural silicon carbide matrix. A method of manufacturing a fuel pellet includes...
US20110176650 NUCLEAR REACTOR GREEN AND SINTERED FUEL PELLETS, CORRESPONDING FUEL ROD AND FUEL ASSEMBLY  
A sintered fuel pellet for a water nuclear reactor fuel rod including a peripheral wall extending along a central axis and two end faces. At least one of the end faces includes at least a first...
US20140247915 METHOD FOR PRODUCING A WEAR-RESISTANT AND CORROSION-RESISTANT STAINLESS STEEL PART FOR A NUCLEAR REACTOR, CORRESPONDING PART AND CORRESPONDING CONTROL CLUSTER  
A method for producing a wear-resistant and corrosion-resistant stainless steel part for a nuclear reactor is provided. This method comprises steps of providing a blank in stainless steel; shaping...
US20130114781 FULLY CERAMIC MICROENCAPSULATED REPLACEMENT FUEL ASSEMBLIES FOR LIGHT WATER REACTORS  
A fully ceramic micro-encapsulated fuel assembly for a light water nuclear reactor includes a set of FCM fuel rods bundled in a square matrix arrangement. Fully ceramic micro-encapsulated fuel...
US20120321031 NUCLEAR FUEL ROD AND METHOD OF MANUFACTURING PELLETS FOR SUCH A ROD  
A new type of nuclear fuel rods. The rod cladding has an elliptical section transverse to its longitudinal direction and each nuclear fuel pellet has a truncated elliptical shape along the major...
US20110255651 NUCLEAR REACTOR (ALTERNATIVES), FUEL ASSEMBLY OF SEED-BLANKET SUBASSEMBLIES FOR NUCLEAR REACTOR (ALTERNATIVES), AND FUEL ELEMENT FOR FUEL ASSEMBLY  
Fuel elements are supported by fuel assemblies configured for use in land-based nuclear reactors such as the VVER-1000. The fuel elements include a kernel having a multi-lobed profile that forms...
US20110317795 METHOD FOR PRODUCING ACTINIUM-225 AND ISOTOPES OF RADIUM AND TARGET FOR IMPLEMENTING SAME  
The invention relates to the field of nuclear technology and radiochemistry, more specifically to the production and isolation of radionuclides for medical purposes. The method for producing...
US20150239025 CLADDING TUBE FOR NUCLEAR FUEL ROD, METHOD AND APPARATUS FOR MANUFACTURING A CLADDING  
A cladding tube for nuclear fuel made from metal and including concave dimples on its external surface. A nuclear fuel assembly includes at least a plurality of nuclear fuel rods provided with...
US20110222643 CLADDING TUBE FOR NUCLEAR FUEL ROD, METHOD AND APPARATUS FOR MANUFACTURING A CLADDING TUBE  
A cladding tube for nuclear fuel made from metal and including concave dimples on its external surface. A nuclear fuel assembly includes at least a plurality of nuclear fuel rods provided with...
US20140185731 URANIUM DIOXIDE NUCLEAR FUEL PELLET HAVING METALLIC MICROCELLS AND FABRICATING METHOD THEREOF  
A uranium dioxide nuclear fuel pellet includes metallic microcells having a high protection capacity for fission products and a high thermal conductivity simultaneously arranged in the nuclear...
US20140294135 POWDER OF AN ALLOY BASED ON URANIUM AND MOLYBDENUM IN GAMMA-METASTABLE PHASE, COMPOSITION OF POWDERS COMPRISING THIS POWDER, AND USES OF SAID POWDER AND COMPOSITION  
The invention relates to a powder of an alloy comprising uranium and molybdenum in γ-metastable phase, a composition of powders comprising this powder, and the uses of said alloy powder and of...
US20100303193 PARTICULATE METAL FUELS USED IN POWER GENERATION, RECYCLING SYSTEMS, AND SMALL MODULAR REACTORS  
A metal particulate fuel system is described. The metal fuel system may include particulate metal fuel for use in nuclear reactors. The particulate metal fuel may include a plurality of particles...
US20140169516 FUEL RODS WITH VARYING AXIAL CHARACTERISTICS AND NUCLEAR FUEL ASSEMBLIES INCLUDING THE SAME  
Nuclear fuel rods have cladding or fuel with physical parameters that substantially change based on axial position within a rod. Parameters include inner and outer cladding and fuel diameters or...
US20140307844 Fuel rods having irradiation target end pieces  
Example embodiments are directed to a fuel rod having end pieces on either end containing irradiation targets. Example embodiment end pieces may contain materials that may be converted to desired...
US20110268243 FUEL CHANNEL ARRANGED TO BE COMPRISED BY A FUEL ELEMENT FOR A FISSION REACTOR  
A fuel channel (5) for a fuel element (1) to a fission reactor, where the fuel element comprises an inlet (9), an outlet (11) and a plurality of elongated fuel rods (3), which fuel rods each...
US20140050293 THERMOACOUSTIC ENHANCEMENTS FOR NUCLEAR FUEL RODS AND OTHER HIGH TEMPERATURE APPLICATIONS  
A nuclear thermoacoustic device includes a housing defining an interior chamber and a portion of nuclear fuel disposed in the interior chamber. A stack is disposed in the interior chamber and has...
US20130329849 METAL NUCLEAR-FUEL PIN INCLUDING A SHELL HAVING THREADS OR FIBERS MADE OF SILICON CARBIDE (SIC)  
A nuclear-fuel pin including a linear element made of a metal nuclear-fuel material consisting of uranium and/or plutonium, and cladding including Fe and Cr or an alloy including at least both of...
US20120201341 ZIRCONIUM-BASED ALLOYS, NUCLEAR FUEL RODS AND NUCLEAR REACTORS INCLUDING SUCH ALLOYS, AND RELATED METHODS  
Zirconium-based metal alloy compositions comprise zirconium, a first additive in which the permeability of hydrogen decreases with increasing temperatures at least over a temperature range...
US20110091004 TRISO FUEL FOR HIGH BURN-UP NUCLEAR ENGINE  
A fuel particle for use in a fusion-fission nuclear engine includes a fuel kernel and a buffer layer surrounding the fuel kernel. The fuel particle also includes a pyrolytic carbon layer...
US20090060115 METHOD, USE AND DEVICE CONCERNING CLADDING TUBES FOR NUCLEAR FUEL AND A FUEL ASSEMBLY FOR A NUCLEAR PRESSURE WATER REACTOR  
A method of producing a cladding tube for nuclear fuel for a nuclear pressure water reactor includes forming a tube which at least principally consists of a cylindrical tube component of a...
US20110206174 NUCLEAR FUEL, A FUEL ELEMENT, A FUEL ASSEMBLY AND A METHOD OF MANUFACTURING A NUCLEAR FUEL  
The invention refers to a nuclear fuel, a fuel element, a fuel assembly and a method of manufacturing a nuclear fuel. The nuclear fuel is adapted for use in a water cooled nuclear reactor,...
US20100266084 Nuclear fission reactor fuel assembly and system configured for controlled removal of a volatile fission product and heat released by a burn wave in a traveling wave nuclear fission reactor and method for same  
A nuclear fission reactor fuel assembly and system configured for controlled removal of a volatile fission product and heat released by a burn wave in a traveling wave nuclear fission reactor and...
US20140334595 FUEL ASSEMBLY  
Nuclear fuel assemblies include non-symmetrical fuel elements with reduced lateral dimensions on their outer lateral sides that facilitate fitting the fuel assembly into the predefined envelope...
US20100142668 POROUS PLENUM SPACER FOR DUAL-COOLED FUEL ROD  
A porous plenum spacer is inserted into the plenum of a dual-cooled fuel rod having concentric inner and outer cladding tubes. The porous plenum spacer includes a hollow cylindrical body inserted...
US20120106693 HIGH Cr FERRITIC/MARTENSITIC STEELS HAVING AN IMPROVED CREEP RESISTANCE FOR IN-CORE COMPONENT MATERIALS IN NUCLEAR REACTOR, AND PREPARATION METHOD THEREOF  
Disclosed herein is a high Cr Ferritic/Martensitic steel comprising 0.04 to 0.13% by weight of carbon, 0.03 to 0.07% by weight of silicon, 0.40 to 0.50% by weight of manganese, 0.40 to 0.50% by...
US20100091932 METHOD FOR DESIGNING A FUEL ASSEMBLY OPTIMIZED AS A FUNCTION OF THE STRESSES IN USE IN LIGHT-WATER NUCLEAR REACTORS, AND RESULTING FUEL ASSEMBLY  
A method for design of a fuel assembly for nuclear reactors, including structural components made from zirconium alloy: the mean uniaxial tensile or compressive stress to which the components are...
US20130010914 COMPOSITE MATERIALS, BODIES AND NUCLEAR FUELS INCLUDING METAL OXIDE AND SILICON CARBIDE AND METHODS OF FORMING SAME  
Methods of forming composite bodies and materials including a metal oxide, such as, uranium dioxide, and silicon carbide are disclosed. The composite materials may be formed from a metal oxide...
US20070274430 Device And Method For Conditioning Nuclear Fuel Assemblies With Double Confinement Barrier  
Transport and storage of nuclear fuel assemblies may require double confinement depending on the circumstances. A device and a method are described to perform this double conditioning without the...
US20100322370 PROCESS OF MANUFACTURING ZIRCONIUM ALLOY FOR FUEL GUIDE TUBE AND MEASURING TUBE HAVING HIGH STRENGTH AND EXCELLENT CORROSION RESISTANCE  
A process of manufacturing zirconium alloy. The process may be used to make a nuclear fuel guide tube and/or a measuring tube which are main components of a nuclear fuel assembly structure. While...
US20130114780 NUCLEAR CORE COMPONENT  
A fuel rod or control rod for a nuclear reactor that has a spacer interposed between an upper end plug and a plenum spring which extends between the spacer and the fissile or absorber material....
US20100135452 LIQUID-METAL-COOLED FAST REACTOR CORE COMPRISING NUCLEAR FUEL ASSEMBLY WITH NUCLEAR FUEL RODS WITH VARYING FUEL CLADDING THICKNESS IN EACH OF THE REACTOR CORE REGIONS  
A liquid-metal cooled fast reactor core having a nuclear fuel assembly constituted of nuclear fuel rods with varying cladding thicknesses in reactor core regions, in which: the nuclear fuel...
US20100128834 ZIRCONIUM ALLOYS WITH IMPROVED CORROSION RESISTANCE AND METHOD FOR FABRICATING ZIRCONIUM ALLOYS WITH IMPROVED CORROSION RESISTANCE  
Articles, such as tubing or strips, which have excellent corrosion resistance to water or steam at elevated temperatures, are produced from alloys having 0.2 to 1.5 weight percent niobium, 0.01 to...
US20090080591 NUCLEAR FUEL PROVIDED WITH A COATING  
This invention relates to a method of preparing a nuclear fuel including the step of depositing a coating which includes fluorine, or at least one compound thereof, around a kernel (12) of fissile...
US20110180184 SURFACE LASER TREATMENT OF ZR-ALLOY FUEL BUNDLE MATERIAL  
A method for treating a Zr-alloy fuel bundle material in a nuclear reactor includes treating a surface of the Zr-alloy fuel bundle material with a laser beam generated by a solid-state laser, and...
US20090252278 NUCLEAR REACTOR (ALTERNATIVES), FUEL ASSEMBLY OF SEED-BLANKET SUBASSEMBLIES FOR NUCLEAR REACTOR (ALTERNATIVES), AND FUEL ELEMENT FOR FUEL ASSEMBLY  
The invention relates to light water reactor designs in which thorium is used as fuel and in particular to designs of jacketless fuel assemblies, which make up the cores of pressurized water...
US20090080592 Swelling-resistant nuclear fuel  
A nuclear fuel according to one embodiment includes an assembly of nuclear fuel particles; and continuous open channels defined between at least some of the nuclear fuel particles, wherein the...
US20100034335 ARTICLES HAVING ENHANCED WETTABILITY  
Articles having surfaces with enhanced wetting properties are presented. One embodiment is an article having a surface configured for promoting a phase transformation from a liquid phase to a...
US20100098207 METHOD AND DEVICE TO PRODUCE HEAT AND POWER  
A method and device are described to form a heat producing plant with replaceable fusion-based reaction cartridges, where the fuel is embedded in casings in the preferred embodiment, and the heat...
US20090285350 Multi-layer fuel channel and method of fabricating the same  
A fuel channel according to example embodiments for a nuclear reactor may have an elongated and hollow body with a multi-layer structure. The multi-layer structure may include a core layer and at...
US20120195402 NEUTRON SOURCE ASSEMBLY  
A neutron source rodlet assembly having a separate source capsule assembly that is not encapsulated within the neutron source rodlet assembly. The neutron source rodlet assembly is made up, at...
US20100296621 METHOD OF MANUFACTURING NUCLEAR FUEL ELEMENTS AND A CONTAINER FOR IMPLEMENTING SUCH A METHOD  
A method of manufacturing nuclear fuel elements comprising the steps of placing nuclear fuel balls in the container made from ultra-porous material, applying a CVI to the container and removing...
US20150354030 TREATMENT PROCESS FOR A ZIRCONIUM ALLOY, ZIRCONIUM ALLOY RESULTING FROM THIS PROCESS AND PARTS OF NUCLEAR REACTORS MADE OF THIS ALLOY  
A treatment process for a zirconium alloy is provided. The process includes the following steps: a zirconium alloy ingot is prepared, the composition of which...
US20150310940 NUCLEAR FUEL ELEMENT  
A top end plug design for a nuclear fuel rod or control rod that maximizes the fuel rod length and internal volume for high burn-up, but limits plenum spring melting for eutectic formation margin....

Matches 1 - 49 out of 49