Interaction Between U-Mo Alloys and Alloys Al-Be

Effect of low-temperature oxidation and heat treatment under vacuum on the Al–Be interdiffusion process

“…First of all, it should be noted that the presence of an intermetallic component in the spectrum, corresponding to the interaction of beryllium and another metal, which was observed in other beryllium-metal systems, [13][14][15] was not expected in a considered system. 16,17 In the case of the XPS method implementation, the mixing of the layers cannot be identified through analysis of peak shifts in photoelectron spectra. Nevertheless, when analysing the photoelectron spectra recorded at different emission angles based on changes in the intensities of the photoelectron components corresponding to layers of a certain material, it is possible to study in detail the processes occurring at the interface thoroughly.…”

Effects of Ag, Co, and Ge additions on microstructure and mechanical properties of Be-Al alloy fabricated by investment casting

“…It is necessary to decrease the essential brittleness of Be for many structural applications in the aerospace industry [1] . The beryllium-aluminium (Al) alloys take the advantages of the Al phase's ductility and the Be phase's high modulus [2,3] . Commercial Be-Al alloys with the Be content from 5% to 80% are widely fabricated by investment casting [4] .…”

Correlations for Interaction Layer Growth in U-Mo/Al Dispersion Fuels

“…Under the influence of neutron irradiation in a dispersed composition, an appreciable interaction of the fissile phase with the matrix material at temperatures below 150 ° C is possible. Under irradiation the thickness of the interaction layer in real fuel reaches 20-30 µm [4][5][6][7][8][9].At the same temperatures without irradiation the interaction is negligible or it occurs extremely slowly. Without irradiation interaction begins at 300 ° C and at temperatures near 400 ° C the interaction layer thickness between the U-10Mo alloy and aluminum grows to 100 µm after 20 hours.…”