Work

Modeling of evaporation of macroparticles of vacuum arcs by an electron beam

Year: 2026

Type: article

Abstract: The evaporation of droplets in an arc plasma flow under the action of an electron beam injected into the arc plasma and the condition of direct heating of microdroplets by beam electrons are considered. Analytical modeling shows that droplets ≤1 μm in size can be completely evaporated over time scales typical for cathodic arc deposition systems. It is shown that small microdroplets evaporate more intensively. The lower limit working points in terms of plasma electron density, and the electron energy and density of the injected energetic electrons required for droplet evaporation are found.

Source: Open Plasma Science

DOI: 10.46298/ops.16405

Authors: Iryna Litovko, Martin Rudolph, André Anders, Alexey Goncharov

Institutions: Institute for Nuclear Research, Institute for Nuclear Research, Leibniz Institute of Surface Engineering, Institute of Physics

Language: English

Topic: Vacuum and Plasma Arcs

Subfield: Atomic and Molecular Physics, and Optics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: hybrid

Funder: Deutsche Forschungsgemeinschaft

Award: Computermodellierung eines Plasmafilters zur Verdampfung und Zerstörung von Mikrotröpfchen, die in einen Plasmastrom eingebettet sind