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

在这个子项目中，研究了在焊接或铜焊过程中，通过在弧区产生足够的XHV气氛，在热等离子体中和在工件表面上的过程。计划进行研究，通过发展X射线和光谱学模型实验，揭示决定热等离子体的过程，以及在样品表面触发哪些表面反应。通过向等离子体气体中添加硅烷而形成的无氧工艺区域将被视为在样品表面存在氧化层还原潜力的反应工艺区域。

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.