Results 51 to 60 of about 248,513 (327)

Shock Waves in Degenerate Plasma Gases [PDF]

Progress of Theoretical Physics, 1962
A quantative study is made of the propagation of stationary shock waves in plasmas whose electrons are almost totally degenerate. The astrophysical implications of the results are discussed. (T.F.H.)
Yasuo Tanaka, Yôrô Ôno
openaire   +1 more source

Nitride‐Reinforced Metal Matrix Nanocomposite Powders Production by Plasma‐Assisted Thermochemical Treatment of Intermetallic Powders

Advanced Engineering Materials, EarlyView.
This study proposes a new methodology for producing metal matrix nanocomposites in the solid state. The process involves the plasma‐assisted thermochemical treatment of metallic alloy powders. As a proof‐of‐concept, TiN nanoparticles are synthesized directly on the surface of FeTi intermetallic powder particles, enabling the development of the ...
Deivison Daros Paim, Antônio Rogério de Souza, Tatiana Bendo, Aloisio Nelmo Klein, Rodrigo Perito Cardoso   +4 more
wiley   +1 more source

Multi-Configuration Calculation of Ionization Potential Depression

Plasma, 2022
The modelling of ionization potential depression in warm and hot dense plasmas constitutes a real theoretical challenge due to ionic coupling and electron degeneracy effects.
Jean-Christophe Pain
doaj   +1 more source

Bimetallic (NiFe) and Trimetallic (NiFeCr) Nanoalloys from Metal Oxides Using a Microwave Hydrogen Plasma

Advanced Engineering Materials, EarlyView.
Bimetallic (NiFe) and trimetallic (NiFeCr) nanoalloys (NAs) are synthesized using corresponding oxide mixtures using microwave hydrogen plasma within a few milliseconds. The process simultaneously 1) reduces metal oxides to metals; 2) downsizes the particles from micrometers to nanometers; and 3) blends the metals to form NAs.
Sachin Kumar, Mohammad Kazemi, Zichang Xiong, Thomas Cameron, Julian Held, Uwe Kortshagen   +5 more
wiley   +1 more source

Spatial Distribution Analyses of Axially Long Plasmas under a Multi-Cusp Magnetic Field Using a Kinetic Particle Simulation Code KEIO-MARC

Plasma
To realize the development of a long plasma source with a uniform electron density distribution in the axial direction, the spatial distribution of plasma under a multi-cusp magnetic field was analyzed using a KEIO-MARC code.
Ryota Nishimura, Tomohiro Seino, Keigo Yoshimura, Hiroyuki Takahashi, Akinobu Matsuyama, Kazuo Hoshino, Tetsutarou Oishi, Kenji Tobita   +7 more
doaj   +1 more source

Electronic temperatures, densities and plasma X-ray emission of a 14.5 GHz Electron-Cyclotron Resonance Ion Source

, 2010
We have performed a systematic study of the Bremsstrahlung emission from the electrons in the plasma of a commercial 14.5 GHz Electron-Cyclotron Resonance Ion Source.
A. Gumberidze, C. I. Szabo, C. Prigent, Chevallier P., D. Vernhet, E. Lamour, E.-O. Le Bigot, F. Haranger, Geller R., Hutchinson I. H., J. Mérot, J.-M. Isac, J.-P. Rozet, M. Trassinelli, N. Adrouche, P. Indelicato, Press W. H., Synge J. L.   +17 more
core   +3 more sources

Influence of an Argon/Silane Atmosphere on the Temperature of a Thermal Plasma

Advanced Engineering Materials, EarlyView.
The influence of a silane‐doped argon atmosphere on the chemical composition and temperature of a thermal nontransferring argon plasma is investigated using optical emission spectroscopy. As a result of the high amount of free electrons resulting from the stepwise ionization and dissociation of the silane molecule, even a silane addition of 0.01 vol ...
Lena Kreie, David Kramer, Thomas Scheithauer, Hans Jürgen Maier, Thomas Hassel   +4 more
wiley   +1 more source

Thermoelectric Modules Incorporating MgAgSb and Mg3(Sb,Bi)2 Synthesized Using a Melting Method

Advanced Engineering Materials, EarlyView.
A scalable synthesis method for a thermoelectric material of MgAgSb is established. A thermoelectric power module of MgAgSb/Mg3(Sb,Bi)2 is fabricated, showing the conversion efficiency of 7.4% at ΔT = 315 K. The performance is comparable to conventional Bi2Te3 modules when they are operated with an air‐cooled heat exchanger.
Kazuo Nagase, Hironori Ohshima, Kunihiro Kihou, Haruno Kunioka, Ushin Anazawa, Ryosuke Sakagami, Yosuke Goto, Masayuki Murata, Chul‐Ho Lee   +8 more
wiley   +1 more source

Thermal Plasma Spheroidization and Characterization of Stainless Steel Powders Using Direct Current Plasma Technology

Plasma
The production of spherical powders has recently registered a boost due to the need to fabricate new printing materials for Additive Manufacturing applications, from polymers and resins to metals and ceramics.
Pierpaolo Iovane, Carmela Borriello, Giuseppe Pandolfi, Sabrina Portofino, Gabriella Rametta, Loredana Tammaro, Nicola Fedele, Sergio Galvagno   +7 more
doaj   +1 more source

About the Data Analysis of Optical Emission Spectra of Reactive Ion Etching Processes—The Method of Spectral Redundancy Reduction

Plasma
In this study, we present the Method of Spectral Redundancy Reduction (MSRR) for analyzing OES (optical emission spectroscopy) data of dry etching processes based on the principles of spectral clustering.
Micha Haase, Mudassir Ali Sayyed, Jan Langer, Danny Reuter, Harald Kuhn   +4 more
doaj   +1 more source