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Plasma activation of plant-based biostimulants enhances growth and defense responses in soybean (Glycine max (L.)). [PDF]
BMC Plant BiolSozoniuk M +15 more
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Fluctuation of arc plasma in arc plasma torch with multiple cathodes*
Chinese Physics B, 2019Fluctuation phenomena commonly exist in arc plasmas, limiting the application of this technology. In this paper, we report an investigation of fluctuations of arc plasmas in an arc plasma torch with multiple cathodes. Time-resolved images of the plasma column and anode arc roots are captured.
Zelong Zhang +3 more
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1972
Plasma is a gaseous cloud composed of free electrons, positive ions, neutral atoms and molecules. It has been referred to as “the 4th state of matter” because of its unique properties. Its behavior involves complex interactions between electromagnetic and mechanical forces.
Dennis A. Gerdeman, Norman L. Hecht
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Plasma is a gaseous cloud composed of free electrons, positive ions, neutral atoms and molecules. It has been referred to as “the 4th state of matter” because of its unique properties. Its behavior involves complex interactions between electromagnetic and mechanical forces.
Dennis A. Gerdeman, Norman L. Hecht
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2013
The development of the plasma transferred arc coating process was directed towards reducing the cost of corrosion and wear resistant parts. Regular steel parts with an appropriate PTA coating can exhibit superior corrosion and wear behavior even compared to specialty alloys. The process is significantly different from the other coating processes as the
Pierre L. Fauchais +2 more
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The development of the plasma transferred arc coating process was directed towards reducing the cost of corrosion and wear resistant parts. Regular steel parts with an appropriate PTA coating can exhibit superior corrosion and wear behavior even compared to specialty alloys. The process is significantly different from the other coating processes as the
Pierre L. Fauchais +2 more
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Plasma arc welding: a mathematical model of the arc
Journal of Physics D: Applied Physics, 1994A number of models of plasma arc welding have been constructed, including some that describe the arc itself. Relatively few rely solely on the physics of a plasma arc and the associated fluid dynamics for construction of mathematical models; for the most part they use a mixture of empirical results and basic physical principles.
J Dowden, P Kapadia
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Modeling of arc force in plasma arc welding
Transactions of Tianjin University, 2008A three-dimensional mathematical model for the transferred-type argon arc was developed to describe arc force on the anode surface. The software ANSYS was employed to solve the model. The model includes a part of torch and tungsten electrode to achieve more reasonable results. The arc temperature and flow fields were derived.
Zhonglin Gao +3 more
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Measurements of Welding Arcs and Plasma Arcs
1991Welding and plasma arcs are among the most powerful emitters of optical radiation. The temperature of welding and plasma arcs is extremely high and the ultraviolet output is therefore potentially hazardous. As is well known the visible radiation emitted by these arcs is blinding, and several cases of severe retinal burns are known to have caused ...
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Floating potential and plasma sheath in vacuum arc plasma
Journal of Applied Physics, 1993Variation of the electric field across the plasma sheath and floating-potential magnitude are calculated at vacuum arc plasma-plane floating surface contact. Due to the nonequilibrium conditions in the cathode-governed vacuum arc plasma, the floating-potential magnitude is smaller and the effective plasma sheath thickness is larger, compared to the ...
Radić, Nikola +2 more
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Journal of Nuclear Materials, 1978
Abstract In a plasma an arc discharge may operate sustained by electromotive forces produced by special structures of the system e.g. sheaths and density gradients. The current flow of such an arc discharge may be quite complicated using besides the plasma all kinds of conducting walls with which it is in contact.
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Abstract In a plasma an arc discharge may operate sustained by electromotive forces produced by special structures of the system e.g. sheaths and density gradients. The current flow of such an arc discharge may be quite complicated using besides the plasma all kinds of conducting walls with which it is in contact.
openaire +1 more source