Article Dans Une Revue Plasma Physics and Technology Année : 2023

Heat Transfer in the Solid Cathode of a Hollow Cathode Plasma Torch

Résumé

After recalling the working principle of hollow cathode plasma torches, we evaluate the heat flux profile on the cathodic arc root. This evaluation takes into account the physics of the cathode sheath. Particular attention is devoted to electron emission from the cold copper cathode. This heat flux profile is then used as a moving boundary condition to obtain the temperature field in the solid cathode with a heat conduction study, with the aim of discussing the problem of its erosion.

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Dates et versions

hal-04725962 , version 1 (08-10-2024)

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Arthur Monnoyer, Pierre Freton, Jean-Jacques Gonzalez. Heat Transfer in the Solid Cathode of a Hollow Cathode Plasma Torch. Plasma Physics and Technology, 2023, 10 (2), pp.94-98. ⟨10.14311/ppt.2023.2.94⟩. ⟨hal-04725962⟩
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