Topic
Zirconium alloy
About: Zirconium alloy is a research topic. Over the lifetime, 6548 publications have been published within this topic receiving 78954 citations. The topic is also known as: zircaloy.
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TL;DR: In this article, a semi-empirical Modified Embedded Atom Method (MEAM) potential is developed for application to the high temperature body-centered-cubic uranium-zirconium alloy (γ-U-Zr) phase and employed with molecular dynamics (MD) simulations to investigate high temperature thermo-physical properties of U−Zr alloys.
38 citations
TL;DR: In this article, a model for the oxidation of zirconium alloys was proposed, where metal electrodes were evaporated on to the oxide films and the dc conduction of the alloy-oxide-metal diodes was investigated.
38 citations
21 Sep 2011-Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment
TL;DR: In this paper, the results of in-situ neutron radiography investigations of hydrogen diffusion and absorption are presented, and a linear dependence of the total macroscopic neutron cross section on the H/Zr atomic ratio as well as on the oxygen concentration is found.
Abstract: The fast and non-destructive character of neutron radiography provides the possibility of in-situ investigations of hydrogen uptake and diffusion in zirconium alloys. A special reaction furnace with neutron transparent windows was constructed. The method of quantitative hydrogen determination by neutron transmission measurements was calibrated for each experimental run. Additionally, oxygen is absorbed in the α-Zr phase and precipitated in the oxide layer. The calibration of the correlation between hydrogen and oxygen concentrations and total neutron cross-sections at room temperature and between 1123 and 1623 K are described. Results of in-situ neutron radiography investigations of hydrogen diffusion and absorption are presented in this paper. A linear dependence of the total macroscopic neutron cross section on the H/Zr atomic ratio as well as on the oxygen concentration was found. No significant temperature dependence of the total neutron cross-sections of hydrogen dissolved in β-Zr or oxygen dissolved in the α-Zr or precipitated in the oxide layer was found.
37 citations
37 citations
01 Feb 1972-Metallurgical and Materials Transactions B-process Metallurgy and Materials Processing Science
TL;DR: In this paper, the Bureau of Mines has produced ductile zirconium dendrites at 800°C in an electrolyte containing NaCl-NaF-ZrCl4.
Abstract: The Bureau of Mines has produced ductile zirconium dendrites at 800°C in an electrolyte containing NaCl-NaF-ZrCl4. Sublimed zirconium tetrachloride was fed into NaCl containing a slight excess of NaF above that required to complex 2 pct Zr as Na2ZrF6. The chlorine gas generated at the graphite anode during electrolysis was confined in and vented out of the cell through a high-density graphite tube into a scrubbing solution of NaOH. At a cathode current density of 300 amp per sq ft, the zirconium metal produced was 95 pct +200 mesh size. The average anode and cathode current efficiencies were 86 and 96 pct. The metal product in the form of arc-melted buttons has a hardness ranging from 130 to 170 Bhn and can be cold-rolled into 15-mil thick strips without intermediate annealing.
37 citations