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JPH09194970A |
To obtain an extra high purity gaseous hydrogen by removing nitrogen, oxygen, carbon monoxide, carbon dioxide, steam and hydrocarbon in gaseous hydrogen starting material to ≤1ppd. Gaseous hydrogen is brought into contact at 350 to 900...
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JPH09187534A |
To provide the face which has an excellent surface finishing characteristic and has a long service life by including first and second ends into a shaft, which first end has a grip and which second end has a head and forming a head which ...
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JPH09145873A |
To provide a fuel covering zirconium alloy pipe in which the pipe inner surface in contact with a fuel body has SCC(stress corrosion cracking) resistance and superior corrosion resistance. In a double zirconium alloy pipe with a pipe inn...
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JP2609463B2 |
Four groups of advanced hydrogen hydride storage and hydride electrode materials, consisting of two common elements, titanium and nickel. In the first group of materials, zirconium and chromium are added with the common elements. The sec...
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JPH09113682A |
To provide a zirconium alloy capable of suppressing both of the generation of nodular corrosion and the generation of break away phenomenon. Among parts in a reactor, a channel box 2, a water rod 7, an upper end plug 13, a lower end plug...
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JPH09111379A |
To obtain a Zr alloy having satisfactory corrosion resistance, that is, superior general corrosion and nodular corrosion resistances even when exposed to a corrosive environment for a longer period of time in correspondence to a tendency...
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JP2600057B2 |
PURPOSE: To suppress nodular corrosion and improve corrosion resistance and hydrogen absorbing characteristic in a sheathed tube for nuclear fuel, a spacer, a channel box and a fuel assembly. CONSTITUTION: At least one of a sheathed tube...
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JPH0978166A |
To produce a zirconium alloy showing excellent corrosion resistance even under high neutron irradiating conditions and to produce a core structural member for a nuclear reactor. This corrosion resistant zirconium alloy has a compsn. cont...
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JPH0978175A |
To improve cycle life characteristic when used in a cathode for Ni-MH secondary battery by incorporating silicon, arsenic, and phosphorus, in a hydrogen storage alloy belonging to a Laves phase type alloy represented by general formula A...
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JPH09502832A |
A Field Emitter Device (FED) having a substantially reducing atmosphere is described. The atmosphere in a FED can be maintained substantially free of oxidizing gases and includes a partial pressure of hydrogen between about 1x10-7 millib...
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JP2588156B2 |
Cladding tube of a zirconium alloy especially for a nuclear reactor fuel rod, characterized by the feature that the geometric mean of the grain diameters in the zirconium alloy is smaller than or equal to 3 mu m.
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JP2575644B2 |
Articles, such as tubing, which have excellent corrosion resistance to steam at elevated temperatures and to hydriding, are produced from zirconium alloys containing 0.5 to 2.0 percent niobium, up to 1.5 percent tin, and up to 0.25 perce...
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JPH0920945A |
PURPOSE: To provide a hydrogen storage alloy without causing any deterioration of characteristics as a battery material even if an inexpensive material contg. Sn and/or Hf and/or Nb is used to produce the Laves-phase alloys contg. Zr. CO...
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JPH0913134A |
PURPOSE: To produce a hydrogen storage alloy high in capacitance and furthermore excellent in high rate discharging characteristics. CONSTITUTION: In a hydrogen storage alloy reversibly occluding and discharging hydrogen, the hydrogen st...
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JPH095468A |
PURPOSE: To provide a cover tube liner excellent in irradiation damage resistance and corrosion resistance by forming a pure zirconium liner layer on the inner face of a fuel cover tube with a crystal of a specified size or below. CONSTI...
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JP2559136B2 |
A zirconium alloy for use in spacer grids for nuclear reactor fuel claddings, which consists essentially of, on a weight percent basis, 2.5 to 10% Nb, 0.01 to 1.5% of one or more components selected from the group consisting of Y and rar...
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JPH08319529A |
PURPOSE: To provide a hydrogen storage alloy, in which alloy phase is composed essentially of C15 (MgCu2) type Laves phase and which has excellent high temp. retention property, by specifying a composition consisting of Zr, Mn, V, Al, Co...
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JPH08302437A |
PURPOSE: To provide a hydrogen storage alloy increased in electric discharge capacity and excellent in high-efficiency electric discharge characteristic by preparing a hydrogen storage alloy in which the structure and composition of an i...
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JPH08285975A |
PURPOSE: To provide a material with improved neutron exposure damage resistance of the fuel assembly member of a reactor using also future plutonium as a fuel. CONSTITUTION: A reactor fuel assembly consists of Zr alloy of ultra-fine crys...
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JP2548773B2 |
A zirconium alloy containing on weight basis, 0.4-1.2% tin, 0.2-0.4% iron, 0.1-0.6% chromium, not higher than 0.5% of niobium and balance oxygen and zirconium, wherein the sum of weight proportions of tin, iron and chromium is in the ran...
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JP2543973B2 |
Nuclear fuel elements for use in the core of a nuclear reactor include an improved composite cladding (17) having a zirconium barrier layer (22) metallurgically bonded on the inside surface of a zirconium alloy tube (21), wherein the ins...
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JPH08260081A |
To improve resistance to entire corrosion of a zirconium based alloy to be usable under high burn-up condition in a nuclear reactor. This alloy is substantially a modified or diluted substance of existing Zircaloy-2 or Zircaloy-4, contg....
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JPH08253847A |
PURPOSE: To produce a Ti-Zr amorphous metal filament having extremely excellent corrosion resistance compared to that of ferrous amorphous metal, also high in safety to human bodies and having thermal stability higher than that of Al-bas...
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JPH08253828A |
PURPOSE: To produce a highly corrosion, resistant zirconium alloy used for structural members for nuclear fuel and particularly excellent in nodular corrosion resistance, uniform corrosion resistance, and hydrogen absorption inhibiting p...
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JPH08248159A |
PURPOSE: To make it possible to control the increase in the exposure dose for workers by determining the surface roughness of a fuel clad pipe at a specific value or less and the lower limit based on the speed of a clad adhering from rea...
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JPH08236111A |
PURPOSE: To improve capacity and life by using a negative electrode having a specified hydrogen storage alloy as the main component material. CONSTITUTION: A nickel.hydrogen storage battery comprises a negative electrode, a positive elec...
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JPH08227711A |
PURPOSE: To provide an alkaline storage battery with high capacity-recovering capability even after long storage at high temperature. CONSTITUTION: An alkaline storage battery has a positive electrode using nickel hydroxide having an ave...
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JPH08220270A |
PURPOSE: To provide a nuclear fuel cladding tube having high resistance against stress corrosion cracking. CONSTITUTION: This nuclear fuel cladding tube has high resistance against stress corrosion cracking and is formed out of a zirconi...
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JPH08508067A |
A method for enhancing the water corrosion resistance of zirconium and zirconium alloys. According to the method, at least one metal element, e.g. 2-10 wt% of cerium, which can stabilise the quadratic phase of zirconia, is added to the z...
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JP2526744B2 |
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JPH08209305A |
PURPOSE: To prevent the rapid corrosion of a sheathing tube, to keep the strength for a long period and to obtain the highly reliable end plug for the fuel rod of a nuclear reactor by forming the end plug with an intermetallic compd. of ...
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JPH08199267A |
PURPOSE: To produce a highly corrosion resistant Zr-base alloy in which the corrosion resistance of zircalloy-2 is further improved by controlling Si content, in a Zr-base alloy containing Sn, Cr, Ni, and Fe in Zr, to a specific value or...
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JPH08199318A |
PURPOSE: To produce a bar-shaped or cylindrical Zr-base amorphous alloy having a large cross-sectional area and good in plastic workability by a metal mold casting method. CONSTITUTION: An alloy raw material 4 is melted in a hearth 1 for...
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JP2515172B2 |
PURPOSE:To ensure corrosion resistance by manufacturing a fuel rod covering tube for cluster of nuclear fuel by a zirconium alloy consisting of Sn, Fe, Cr, Nb, Ni, O, C, Si, the remainder of Zr and inevitable impurities. CONSTITUTION:In ...
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JP2509434B2 |
PURPOSE: To produce rings of uniform thickness from an active brazing filler alloy by lifting individual coils of a helix off a metal drum during the short time in which a liquid alloy is cooled rapidly on the metal drum and then coiling...
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JPH08134567A |
PURPOSE: To inhibit the formation of an oxidized film on the surface of an AB2 type Laves phase alloy forming an electrode without reducing the volume of the electrode or the energy density per unit weight by adding a specified amt. of B...
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JPH08131460A |
PURPOSE: To provide an artificial tooth root having excellent joining strength to a biofittable material by having a metallic core material coated with a biofittable material on its front surface and composing the metallic core material ...
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JPH08131461A |
PURPOSE: To obtain a metallic denture plate for dental purposes which is inexpensive, has excellent adaptability and has high strength by forming this dental plate of an amorphous allay having a supercooling liquid region. CONSTITUTION: ...
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JPH08114688A |
PURPOSE: To provide a zircalloy fuel clad tube superior in corrosion resistivity. CONSTITUTION: Zirconium alloy pipe containing alloy element selected from among Sn, Fe, Cr, Ni and Nb has an inner layer pipe consisting of Nb of 0.05 to 0...
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JPH08109498A |
PURPOSE: To produce a zirconium based anode case having no solubility to an electrolytic plating liq.. CONSTITUTION: For example, the anode case used to tin or tin-lead alloy plating bath is provided. A metal to be plated (e.g. tin or ti...
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JPH08100231A |
PURPOSE: To obtain a Zr alloy excellent in corrosion resistance, especially general corrosion resistance. CONSTITUTION: Hot working is carried out after β-treatment, cold working and process annealing are repeated and final annealing is...
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JPH0873970A |
PURPOSE: To produce a hydrogen storage alloy excellent in crushability at a low cost by using a Zr-V-Ni-type composition as a base and adding rare earth metals, Mn, and specific metallic elements to the composition. CONSTITUTION: A hydro...
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JPH0826424B2 |
PURPOSE:To develop a hydrogen occluding alloy excelled in properties in a specific temp. range by subjecting an alloy containing, each in a specific ratio, Ti and its substitutional element and Mn and Cr and their respective substitute e...
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JPH0824845B2 |
The specification discloses an alloy catalyst for oxidation of hydrogen which is prepared by heat treating a material comprising an amorphous alloy represented by the formula: ZrxCo(100-x) (wherein 10 atomic %
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JPH0867954A |
PURPOSE: To produce a Zr alloy having excellent corrosion resistance in a high temp. water and high temp. steam environment, at the time of subjecting a Zr alloy stock having a specified compsn. increased in the content of Fe to solution...
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JPH0868884A |
PURPOSE: To improve the corrosion resistivity of a corrosion resistive Zr alloy pipe for uniform corrosion by constituting a specific thickness of pipe periphery with recrystalization structure or partial crystalization structure and the...
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JPH0867935A |
PURPOSE: To produce a zirconium-base alloy having corrosion resistance, particularly in uniform corrosion resistance against the high burn up of an atomic power plant and the prolongation of its operating period. CONSTITUTION: A high cor...
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JPH0823055B2 |
A corrosion resistant zirconium alloy is comprised of, in weight percent, about 0.1 to less than 0.5 percent bismuth, about 0.1 to less than 0.5 percent niobium, and the balance substantially zirconium. Preferably, niobium is about 0.1 t...
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JPH0860350A |
PURPOSE: To easily produce a high-purity metallic material with good reproducibility by refining a crude metallic material consisting essentially of one kind of metal selected from among Ti, Zr and Hf by the iodide decomposition method a...
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JPH0843568A |
PURPOSE: To provide a coating that resists nodular corrosion and also resists uniform corrosion at high burn-up and that has resistance to axial cracking development. CONSTITUTION: A coating used for storing fissionable material 16 in a ...
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