Control of the oxygen content in the thermal arc and the effect on the material transition for the production of oxygen-free joints (B05)

• Subject Area: Production Automation and Assembly Technology
• Term: from 2020 to 2023
• Project identifier: Deutsche Forschungsgemeinschaft (DFG) - Project number 394563137

In this subproject the processes in the thermal plasma and on the workpiece surface by the generation of an XHV-adequate atmosphere in the arc area of a welding or brazing process are researched. Investigations are planned which, by developing X-ray and light spectroscopic model experiments, will reveal the processes that determine the thermal plasma and which surface reactions are triggered on the sample surface. The oxygen-free process zone created by the addition of silane to the plasma gas will be regarded as a reactive process zone in which there is a potential for oxide layer reduction at the sample surface.

• DFG Programme: Collaborative Research Centres
• Subproject of: SFB 1368: Oxygen-free production - processes and local mechanisms in oxygen-free atmosphere for the development of sustainable production techniques and manufacturing processes
• Major Instrumentation: Emissionsspektrometer
• Instrumentation Group: 1800 Spektralphotometer (UV, VIS), Spektrographen (außer Monochromatoren 565)
• Applicant Institution: Gottfried Wilhelm Leibniz Universität Hannover
• Project Head: Dr.-Ing. Thomas Hassel