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Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
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Crystallographic and compositional contributions to the breakdown of the GdNi1− Co solid solution
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Chromium silicide-based composites fabricated via solid-state reactions: Phase development, oxidation behavior and electrical properties at high-temperatures
Not Available
Effects of passivation on synthesis, structure and composition of molybdenum carbide supported platinum water-gas shift catalysts
Abstract not provided
High-performance bimetallic alloy catalyst using Ni and N co-doped composite carbon for the oxygen electro-reduction
Not Available
Hall–Petch effect in binary and ternary alumina / zirconia / spinel composites
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On α' precipitate composition in thermally annealed and neutron-irradiated Fe- 9-18Cr alloys [On α' composition in thermally annealed and neutron-irradiated Fe- 9-18Cr alloys]
Ferritic-martensitic steels are a leading candidate for many nuclear energy applications. However, precipitation of nanoscale a’ precipitates during thermal aging at temperatures above 450 °C, or during neutron irradiation at lower temperatures, makes these Fe-Cr steels susceptible to embrittlement. To complement the existing literature, a series of Fe-9 to 18 Cr alloys were neutron-irradiated at temperatures between 320 and 455 °C up to fluences of 20 dpa. In addition, post-irradiation annealing treatments at 500 and 600 °C were performed on the neutron-irradiated Fe-18 Cr alloy to validate the a-a’ phase boundaries. The microstructures were characterized using atom probe tomography and the results were analyzed in light of the existing literature. In conclusion, under neutron irradiation and thermal annealing, the measured a’ concentrations ranged from ~81 to 96 at.% Cr, which were discussed in terms of temperature, precipitate size, technique artefacts, and, possibly, cascade ballistic mixing.
Strength of SiCf-SiCm composite tube under uniaxial and multiaxial loading
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Compositional effects on radiation tolerance of amorphous silicon oxycarbide
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