Results 61 to 70 of about 85,932 (298)
Advanced Engineering Materials, EarlyView.This study demonstrates an efficient recycling route for out‐of‐spec AlSi10Mg atomized powders through compaction and arc remelting followed by suction casting. By correlating compaction load, cooling rate, and resulting microstructure, we show that intermediate pressures (50–80 kN) and rapid cooling refine dendrites, reduce porosity, and enhance ...
Mila Christy de Oliveira +4 more
wiley +1 more source
Hydrodynamic obstruction to bubble expansion
, 2010 We discuss a hydrodynamic obstruction to bubble wall acceleration during a cosmological first-order phase transition. The obstruction results from the heating of the plasma in the compression wave in front of the phase transition boundary.
C. Caprini +8 more
core +1 more source
Packaging of Macroscopic Material Payloads: Needs, Challenges, Concepts, and Future Directions
Advanced Engineering Materials, EarlyView.This review introduces a unified framework that decomposes any macroscopic packaging system into the payload, packaging material, and packaging strategy and combines them into a conceptual packaging equation: packaging strategy = payload + packaging material.
Venkata S. R. Jampani, Manos Anyfantakis
wiley +1 more source
Frontiers in Astronomy and Space Sciences, 2023 A wide variety of small-amplitude waves widely exist in the ionosphere and have significant effects on the evolution of equatorial plasma bubbles. In this paper, we simulated equatorial plasma bubbles (EPB) seeded by vertical neutral wind perturbations ...
Yunzhou Zhu +11 more
doaj +1 more source
Collapsar Jets, Bubbles and Fe Lines [PDF]
, 2001 In the collapsar scenario, gamma ray bursts are caused by relativistic jets expelled along the rotation axis of a collapsing stellar core. We discuss how the structure and time-dependence of such jets depends on the stellar envelope and central engine ...
M. J. Rees, P. Mészáros, Scheuer P.
core +2 more sources
Advanced Engineering Materials, EarlyView.Geometry‐driven thermal behavior in wire‐arc additive manufacturing (WAAM) influences microstructural evolution during nonequilibrium solidification of a chemically complex Fe–Cr–Nb–W–Mo–C nanocomposite system. By comparing different deposits configurations, distinct entropy–cooling rate correlations, segregation, and carbide evolution are revealed ...
Blanca Palacios +5 more
wiley +1 more source
Physical Review Accelerators and Beams, 2023 The quality of electron beams produced from plasma-based accelerators, i.e., normalized brightness and energy spread, has made transformative progress in the past several decades in both simulation and experiment.
Xinlu Xu +7 more
doaj +1 more source
Why Do Equatorial Plasma Bubbles Bifurcate?
Journal of Geophysical Research: Space Physics, 2020 AbstractIonospheric plasma bubble observations using all‐sky airglow imagers in the OI 630‐nm emission show bifurcations with complex patterns. Bifurcation is the division of one channel of the plasma bubble into two that grow vertically in the magnetic equator. Several theories have been suggested to explain the bifurcation mechanism.
A. J. Carrasco +4 more
openaire +2 more sources
Advanced Engineering Materials, EarlyView.Carbon‐free inert anodes are essential for decarbonizing aluminum electrolysis. This study investigates a recyclate‐based MgO‐316L steel composite anode tested under galvanostatic Hall–Héroult conditions in cryolite at 1000°C. Microstructural analysis reveals selective MgO fluorination, spinel and oxide layer formation, electrolyte infiltration, and ...
Serhii Yaroshevskyi +7 more
wiley +1 more source
Discover PlantsLow-temperature plasma has been attracting attention as a new method to promote seed germination. Cavitation bubble plasma, a type of low-temperature plasma, is a technology that generates electrode-derived metal nanoparticles/ions and abundant reactive ...
Kotaro Kawano +5 more
doaj +1 more source