Characterisation of materials and structures by means of scanning electron microscopy and EDX, EBSD and STEM analysis

Within the scope of the research project funded by the DFG, a high-resolution scanning electron microscope with EDX, EBSD and STEM detectors as well as an external FIB will be procured and scientific staff will be provided to operate it for a period of 5 years. The proposed SEM is characterised by a combined electrostatic-magnetic objective, which allows very high magnifications at low acceleration voltages and field-free operation. This allows the characterisation of a wide range of different materials, including steels, electrochemically deposited alloys, polymers and composites, through to biological cells. These materials are of great interest for applied research at the university in the fields of mechanical engineering, civil engineering, electrical engineering as well as life sciences and are thus also of central importance for future research activities at the University of Applied Sciences Kaiserslautern.

The characterisation of materials by means of scanning electron microscopy and corresponding analytical extensions also offers ideal approaches for the interdisciplinary linking of research fields from the various disciplines, since on the one hand synergies and analogies can be found here (e.g. bionic structures), and on the other hand cross-thematic issues can also be addressed. There are concrete strategies for using the proposed large-scale equipment within the scope of current and proposed research projects. For example, this will make it possible to model damage processes in steels and derive parameters for a fatigue life from them. In concrete terms, this involves linking the material response with the material mechanisms that take place.

 

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Wissenschaftliche Mitarbeiterin

HSKL

Studiengangsleitung: "Automatisierungstechnik, Bachelor" "Industrial Engineering, Bachelor" "Mechatronik berufsbegleitend, Bachelor" "Prozessingenieurwesen, Bachelor", Fachbereichsrat AING

In a similar context, it is about the quantification of process chains in the subtractive machining of steels. In addition, electrochemically deposited hard and soft magnetic nanocrystalline materials are to be characterised with regard to their properties, which will open up new fields of application for this established but not yet widely used technology in the future. In the field of biosensor technology, the analysis of these materials after chemical modification and coating with biological molecules and cells is also planned.

Since a comparable system is currently not available at the university, this will significantly increase the potential of the research-active professors. For this reason, and in order to ensure its sustainable use, the university management, the participating departments and research areas support the project beyond the requested project duration in its implementation and by providing funds for follow-up and personnel costs.