Fraunhofer Institute for Surface Engineering and Thin Films IST
Microscope image of a battery active material before (left) and after (right) plasma coating with carbon.
Plasma coating of particle surfaces
Particle coating for multi-component systems
The chemical composition of a coating can be significantly influenced by the starting materials. Through the utilization of modified particles, which e.g. have a core or shell structure, multi-component systems or multi-component layers with new properties can be created.
Particle modification for cold plasma spraying and 3D printing
The chemical or physical and morphological properties have a significant influence on the potential spraying capabilities and the resulting coatings. In the special application case of cold plasma spraying in the field of atmospheric plasma spraying, limitations exist in comparison to the conventional thermal spraying process with regard to the low temperature input. In order to nevertheless be able to deposit high-melting materials, one approach is the use of nanoscale particles. Stable particle aerosols necessary for this can be provided.
Material diversity in plasma coating of particle surfaces
Spherical copper particles.
Flakelike copper particles.
Copper grit.
Cubic tungsten particles.
Circuit board with via produced by means of cold plasma spraying.
Diverse coatings for practical uses – Al, CuO, Cu, brass, PTFE / PE, and Zn on PMMA.