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

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