Results 61 to 70 of about 95,813 (295)

The evolution of hydrogen bubbles during ion irradiation and annealing in molybdenum for neutral beam injection inductively coupled plasma source

Nuclear Materials and Energy, 2022
Molybdenum (Mo) is considered as a promising plasma-facing material, which is expected to be used in the manufacture of critical components for the neutral beam injection (NBI) inductively coupled plasma (ICP) source.
Yunqiu Cui, Na Lu, Chunjie Niu, Jianhua Lv, Weifeng Liu, Chao Chen, Weiyuan Ni, Xianxiu Mei, Guangjiu Lei, Jiupeng Song, Miao Zhao, Hongyu Fan, Dongping Liu   +12 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, A. A. Pimenta, C. M. Wrasse, I. S. Batista, H. Takahashi   +4 more
openaire   +2 more sources

Characterization of a Recyclate‐Based MgO‐Steel Composite As‐Sintered Inert Anode Candidate After Exposure to Cryolite Electrolysis

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, Alexander Adamczyk, Nora Brachhold, Gert Schmidt, Jana Hubálková, R. Gumeniuk, Alexandros Charitos, Christos G. Aneziris   +7 more
wiley   +1 more source

The Impact of Vertical Plasma Motion on the Evolution of Predawn Equatorial Plasma Bubbles on the Dayside

Geophysical Research Letters
This study investigates the impact of vertical ionospheric drift during daytime on the evolution of predawn equatorial plasma bubbles by conducting model simulations using “Sami3 is Another Model of the Ionosphere.” The upward drift of the ionosphere ...
Hyosub Kil, Joseph D. Huba, Larry J. Paxton   +2 more
doaj   +1 more source

Seasonal-longitudinal variability of equatorial plasma bubbles [PDF]

Annales Geophysicae, 2004
We compare seasonal and longitudinal distributions of more than 8300 equatorial plasma bubbles (EPBs) observed during a full solar cycle from 1989-2000 with predictions of two simple models.
W. J. Burke, C. Y. Huang, L. C. Gentile, L. Bauer   +3 more
doaj   +1 more source

Removing Oxide Layers and Retaining Oxide‐Free Steel Surfaces by Polishing in Oxygen‐Free Atmosphere

Advanced Engineering Materials, EarlyView.
In this study, the efficacy of wet mechanical polishing under an oxygen‐free atmosphere for deoxidation and the retention of an oxide‐free steel surface are elucidated using X‐ray photoelectron spectroscopy. The methodology proved successful; however, the results were highly dependent on the preparation of the solvents used to clean the samples after ...
Friedrich Bürger, Lienhard Wegewitz, Wolfgang Maus‐Friedrichs   +2 more
wiley   +1 more source

Growth of multifractal tungsten nanostructure by He bubble induced directional swelling

New Journal of Physics, 2015
Helium (He) plasma irradiation to tungsten (W) leads to morphology changes in nanometer scale by the formation and growth of He bubbles. Initially pinholes and protrusions are formed on the surface followed by the formation of nanostructures.
Shin Kajita, Naoaki Yoshida, Noriyasu Ohno, Yoshiyuki Tsuji   +3 more
doaj   +1 more source

On the exclusion of intra-cluster plasma from AGN-blown bubbles [PDF]

, 2010
Simple arguments suggest that magnetic fields should be aligned tangentially to the surface of an AGN-blown bubble. If this is the case, charged particles from the fully ionised intra-cluster medium (ICM) will be prevented, ordinarily, from crossing the ...
Baumjohann, Benson, Binney, Bodenheimer, Bower, Bower, Burns, Bîrzan, Cavagnolo, Chandrasekhar, Chapman, Churazov, Crawford, Croton, De Young, De Young, De Young, Diehl, Dunn, Dursi, Dursi, Edward C. D. Pope, Elsner, Enßlin, Forman, Funaki, Goldston, Graham, Hartquist, Ikhsanov, Kaiser, Kaiser, Kivelson, Mathews, Mathews, McNamara, Mittal, Nakamura, Nakamura, O'Neill, Parks, Paschmann, Pizzolato, Pope, Puchwein, Rafferty, Reynolds, Robinson, Ruszkowski, Ryu, Sanders, Scannapieco, Short, Spitzer, Sternberg   +54 more
core   +1 more source

Dynamic Testing of Cold Gas Sprayed Bipolar Plates–Porous Transport Layer Coating System in Proton Exchange Membrane Water Electrolysis

Advanced Engineering Materials, EarlyView.
Through direct application of porous transport layer (PTL) on the bipolar plate (BPP) with thermal spraying, the interfacial contact resistance is improved. With the cold gas sprayed BPP–PTL coating system, a proton exchange membrane water electrolysis cell with a cell voltage of Ucell = 1.9 V can be operated up to i = 2.5 A/cm2 in a dynamic mode ...
Kirsten Bobzin, Marvin Erck, Kevin Jasutyn, Katja Radermacher, Andreas Bund, Mario Kurniawan   +5 more
wiley   +1 more source

Bubble regime in deep plasma channels [PDF]

AIP Conference Proceedings, 2017
We consider the advantages of the bubble regime in plasmas with deep channels. Particle-in-cell simulations for laser-driven bubbles show that the use of hollow channels allows one to significantly improve the quality of resulting electron bunches. An analytical theory for the bubble in radially non-uniform plasmas is developed.
A. A. Golovanov, I. Yu. Kostyukov, A. Pukhov, J. Thomas   +3 more
openaire   +1 more source