Browsing by Author "Kersten, Holger"

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    Electron-driven processes from single collisions to high-pressure plasmas
    (Berlin ; Heidelberg : Springer, 2023) Lopez, Jose L.; Brunger, Michael; Kersten, Holger
    This Special Topical Issue of the European Physics Journal D (EPJ D) on “Electron-Driven Processes from Single Collisions to High-Pressure Plasmas” is published to honour Kurt H. Becker, who served as Editor-in-Chief for the journal from 2010 to 2016, on his 70th birthday.
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    Energy Flux Characterisation of Atmospheric Pressure Plasma Spray Torches with Passive Thermal Probes
    (Boston, Mass. : Springer, 2022) Reck, Kristian A.; Hansen, Luka; Stummer, Maximilian; Kewitz, Thorben; Testrich, Holger; Hinterer, Andreas; Foest, Rüdiger; Kersten, Holger
    Passive thermal probes were applied on two different plasma spraying devices to gain a detailed understanding of the energy flux towards the substrate under atmospheric pressure. The challenge of very high thermal load was solved by using an advanced time-resolved measuring and evaluation technique. The combination with a controlled movement of the jets allowed to obtain insightful radial profiles. The energy flux to the substrate changes linearly to the electrical input power. When adding diatomic gases (H2/N2) to the gas mixture the energy flux increases significantly, suggesting a more efficient energy transport. For increasing the axial distance, the energy flux shows a quadratic reduction. The obtained radial profiles are exemplarily utilized to show the inhomogeneous effect of powder injection on the energy flux distribution.