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Nb-alloys like C-103 (89 wt% Nb, 10 wt% Hf, 1 wt% Ti) or Nb-1Zr (~99 wt% Nb, 1 wt% Zr) are generally easier to fabricate and more workable than Mo-alloys although they have
contact201671 · As the material of fuel claddings for water cooled reactors most commonly used binary and multicomponent zirconium alloys Zr-Nb (E110,M5), Zr-Sn-Fe (Zircaloy-2,
contact20221027 · To understand the nanomechanical behaviors of the Nb-based alloys with Zr addition at room/high temperature, the molecular dynamics simulations of
contact2 · The Zr + 1% Nb alloy of type N-1 E-110 is used for fuel element claddings, the Zr + 2.5% Nb alloy of type E-125 is applied for tubes of assembly channels. The cladding material for the new 17×17 fuel
contactAvailable alloy forms include sheets and plates, discs, foils, rods, tubes, and other shapes. American Elements can produce niobium-zirconium alloy in various standard ratios of
contact2021525 · Niobium-Zirconium alloys (Nb-1Zr) and PWC-11 alloys (Nb-1Zr-0.1C) have been used in the SP-100 design as basic materials for lithium coolant boundaries,
contact2021129 · Niobium-Zirconium alloys (Nb-1Zr) and PWC-11 alloys (Nb-1Zr-0.1C) have been used in the SP-100 design as basic materials for lithium coolant boundaries,
contact：. Superconducting amorphous alloys with high strength and good ductility have been found in rapidly quenched alloys of the Zr-Nb-Si system. These alloys were produced in
contactBoth alloys have a single phase beta Zr solid solution at 700°C which is detrimental for the oxidation resistance. beta Nb-phase greatly contributes to the oxidation resistance in
contact20221027 · To understand the nanomechanical behaviors of the Nb-based alloys with Zr addition at room/high temperature, the molecular dynamics simulations of nanoindentation are conducted. In this work, the load-unload displacement curve, hardness, and dislocation characteristics of Nb-Zr alloys with varying Zr content ranging from 0 to 5
contactJournal of Phase Equilibria and Diffusion. 2022. The Nb-Zr system was reassessed based on calculated theoretical data and available thermodynamic and phase equilibria data. The Gibbs energies of the bcc and hcp solid phases were described using…. Expand. Highly Influenced. View 5 excerpts, cites methods and background.
contact2023315 · The reason for accelerated corrosion of Zr-Nb alloys in lithiated water is discussed from the rapid oxidation of β-Nb precipitates. ... "Oxidation behavior of niobium in oxide layer of zirconium ...
contact2021525 · Niobium-Zirconium alloys (Nb-1Zr) and PWC-11 alloys (Nb-1Zr-0.1C) have been used in the SP-100 design as basic materials for lithium coolant boundaries, reactor shells and parts inside fuel casings. Nb-1Zr alloy has 50% higher yield strength than pure Niobium and has the same corrosion resistance as pure Niobium in many solutions.
contact202086 · CREEP STRENGTH OF NIOBIUM ALLOYS, Nb-l%Zr AND PNC-II Robert H. Titran National Aeronautics and Space Administration Lewis Research Center Cleveland, OH 44135 ... Nb-l%Zr alloy was received from ORNL in the form of cold worked l-mm sheet. Machined tensile creep specimens were annealed in high vacuum for, (I) 1 h at
contact2023320 · The influence of pentavalent elements (Nb5+, Ta5+) with Fe3+ on TiO2 ceramic were investigated. The (Nb0.5Fe0.5)0.1Ti0.9O2 and (Ta0.5Fe0.5)0.1Ti0.9O2 ceramics have been synthesized and realized that the effect of Nb in the system has developed lattice expansion, although Nb and Ta exhibit similar ionic radii. The colossal
contact2022820 · Different cases for Zr-Nb alloys with unit cells having BCC and HCP structures are considered. Optimal values of the lattice constants are obtained. Critical value for the niobium concentration corresponding to the structural transformation HCP → BCC at zero temperature is defined.
contact20201016 · A nuclear fuel element includes a core comprising a fissile element and an additional element. A protective structure surrounds the core and comprises at least a first material surrounding the nuclear fuel. The first material comprises the fissile element ...
contact：. Superconducting amorphous alloys with high strength and good ductility have been found in rapidly quenched alloys of the Zr-Nb-Si system. These alloys were produced in a continuous ribbon form of 1 to 2 mm width and 0.02 to 0.03 mm thickness using a modified single roller quenching apparatus. The amorphous alloys were formed over the ...
contact2022823 · Niobium-zirconium (Nb-Zr) alloy is an old superconductor that is a promising new candidate for superconducting radio-frequency (SRF) cavity applications. Using density-functional and Eliashberg...
contactThe individual and combined effects of W and Zr additions on macrostructure, microstructure and mechanical properties of Nb have been investigated. Nb, Nb-10 wt% W, Nb-2.5 wt% Zr and Nb-10 wt% W-2.5 wt% Zr alloy ingots were prepared by electron beam drip melting using high purity Nb, W and Zr rods. Additions of W and Zr resulted in significant
contact20221027 · To understand the nanomechanical behaviors of the Nb-based alloys with Zr addition at room/high temperature, the molecular dynamics simulations of nanoindentation are conducted. In this work, the load-unload displacement curve, hardness, and dislocation characteristics of Nb-Zr alloys with varying Zr content ranging from 0 to 5
contact2023315 · The reason for accelerated corrosion of Zr-Nb alloys in lithiated water is discussed from the rapid oxidation of β-Nb precipitates. ... "Oxidation behavior of niobium in oxide layer of zirconium ...
contact2021525 · Niobium-Zirconium alloys (Nb-1Zr) and PWC-11 alloys (Nb-1Zr-0.1C) have been used in the SP-100 design as basic materials for lithium coolant boundaries, reactor shells and parts inside fuel casings. Nb-1Zr alloy has 50% higher yield strength than pure Niobium and has the same corrosion resistance as pure Niobium in many solutions.
contact2023320 · The influence of pentavalent elements (Nb5+, Ta5+) with Fe3+ on TiO2 ceramic were investigated. The (Nb0.5Fe0.5)0.1Ti0.9O2 and (Ta0.5Fe0.5)0.1Ti0.9O2 ceramics have been synthesized and realized that the effect of Nb in the system has developed lattice expansion, although Nb and Ta exhibit similar ionic radii. The colossal
contact202086 · CREEP STRENGTH OF NIOBIUM ALLOYS, Nb-l%Zr AND PNC-II Robert H. Titran National Aeronautics and Space Administration Lewis Research Center Cleveland, OH 44135 ... Nb-l%Zr alloy was received from ORNL in the form of cold worked l-mm sheet. Machined tensile creep specimens were annealed in high vacuum for, (I) 1 h at
contact2022820 · Different cases for Zr-Nb alloys with unit cells having BCC and HCP structures are considered. Optimal values of the lattice constants are obtained. Critical value for the niobium concentration corresponding to the structural transformation HCP → BCC at zero temperature is defined.
contact20201016 · A nuclear fuel element includes a core comprising a fissile element and an additional element. A protective structure surrounds the core and comprises at least a first material surrounding the nuclear fuel. The first material comprises the fissile element ...
contact2022823 · Niobium-zirconium (Nb-Zr) alloy is an old superconductor that is a promising new candidate for superconducting radio-frequency (SRF) cavity applications. Using density-functional and Eliashberg...
contact2020529 · The Zr–Nb alloys are widely used structural materials of modern nuclear power plants, where they undergo a significant neutron irradiation. In the present work, the cascades of atomic displacements in the Zr–n%Nb binary alloy (n = 0.5%, 1%, 1.5%, 2%, 2.5%, 3%) at temperatures 0 and 600K are studied by means of the molecular dynamics ...
contactThe individual and combined effects of W and Zr additions on macrostructure, microstructure and mechanical properties of Nb have been investigated. Nb, Nb-10 wt% W, Nb-2.5 wt% Zr and Nb-10 wt% W-2.5 wt% Zr alloy ingots were prepared by electron beam drip melting using high purity Nb, W and Zr rods. Additions of W and Zr resulted in significant
contact20221027 · To understand the nanomechanical behaviors of the Nb-based alloys with Zr addition at room/high temperature, the molecular dynamics simulations of nanoindentation are conducted. In this work, the load-unload displacement curve, hardness, and dislocation characteristics of Nb-Zr alloys with varying Zr content ranging from 0 to 5
contact2023315 · The reason for accelerated corrosion of Zr-Nb alloys in lithiated water is discussed from the rapid oxidation of β-Nb precipitates. ... "Oxidation behavior of niobium in oxide layer of zirconium ...
contact201211 · In order to characterize the amount of oxidized Nb as function of oxide depth in Zr–0.4Nb alloy, microbeam (0.2 m spatial resolution) XANES measurements were performed at the Advanced Photon ...
contact201917 · The extraordinary superconductivity has been observed in a pressurized commercial niobium–titanium alloy. Its zero-resistance superconductivity persists from ambient pressure to the pressure as high as 261.7 GPa, a record-high pressure up to which a known superconducting state can continuously survive.
contact1 · Composition of Zirconium Alloys. Zirconium is usually alloyed with alloyed with niobium or tin to obtain excellent corrosion properties. The Zr + 1% Nb alloy of type N-1 E-110 is used for fuel element claddings. Pure zirconium is a lustrous, grey-white, strong transition metal that resembles hafnium and, to a lesser extent, titanium.
contact20181025 · In 1965, Niobium C-103 alloy was first manufactured in America and used in the nozzle extended segment of the Apollo manned lunar module rocket engine. C-103 Nb alloy is a complex refractory metal
contact：. Superconducting amorphous alloys with high strength and good ductility have been found in rapidly quenched alloys of the Zr-Nb-Si system. These alloys were produced in a continuous ribbon form of 1 to 2 mm width and 0.02 to 0.03 mm thickness using a modified single roller quenching apparatus. The amorphous alloys were formed over the ...
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