Improved model for cathode spot crater in vacuum arc
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Physics D: Applied Physics"
DOI: 10.1088/1361-6463/aaeac0
Abstract: An improved two-dimensional axisymmetric swirl model based on former work has been developed to describe the detailed physical process in the formation and development of vacuum arc cathode spot. In the current model, the influence… read more here.
Keywords: vacuum arc; model; cathode spot; density ... See more keywords
Study of cathode-spot crater and droplet formation in a vacuum arc
Sign Up to like & getrecommendations! Published in 2021 at "Journal of Physics D: Applied Physics"
DOI: 10.1088/1361-6463/abe573
Abstract: A 3D transient model of a cathode-spot crater and droplet formation in a vacuum arc is developed. The model includes mass, momentum, heat transfer (energy), current continuity and potential equations. Using the energy flux density,… read more here.
Keywords: spot; droplet formation; cathode spot; spot crater ... See more keywords
Molten Metal Jets Formation in the Cathode Spot of a Vacuum Arc
Sign Up to like & getrecommendations! Published in 2019 at "IEEE Transactions on Plasma Science"
DOI: 10.1109/tps.2019.2906396
Abstract: We have theoretically studied the molten metal jets formation during an operation of vacuum arc discharge for a wide range of crater sizes for near-threshold electric currents. At the initial stage of crater formation, a… read more here.
Keywords: cathode spot; formation; vacuum arc; metal jets ... See more keywords
Invisible Structure of the Cathode Spot of a Welding Arc with a Tungsten Anode and a Film Cathode Burning in an Inert Gas
Sign Up to like & getrecommendations! Published in 2019 at "High Temperature"
DOI: 10.1134/s0018151x19010012
Abstract: It is demonstrated that it is possible, in principle, to study the reverse side of the welding arc cathode spot with a high-speed camera. Photographs of the reverse side of the welding arc cathode spot… read more here.
Keywords: structure cathode; cathode spot; welding arc; cathode ... See more keywords
Stimulated Ignition and Quenching of the Cathode Spot in a Low-Power Discharge with Plasma Injection
Sign Up to like & getrecommendations! Published in 2019 at "Plasma Physics Reports"
DOI: 10.1134/s1063780x19080026
Abstract: Experimental results are presented on the current commutation in a low-power gas discharge with external plasma injection. Correlation between current commutation and cathode spot ignition is established. It is shown that the cathode spot is… read more here.
Keywords: plasma; plasma injection; discharge; low power ... See more keywords