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24.08.2018
Clausthal-Zellerfeld. For the second time, master's and doctoral students at the Clausthal Center for Materials Engineering (CZM) had the opportunity to present the results of their scientific and engineering work related to materials to a wide audience. In addition to listeners from the world of science, guests from industry and school pupils were also present. After the presentations, the more than 90 participants engaged in in-depth discussions in a relaxed atmosphere.
The aim of the CZM is to create new types of material systems - from the targeted modification of existing materials to the coupling of contrasting materials such as glass, ceramics, plastic or metal. Achieving this goal would be impossible without the dedicated students and doctoral candidates at Clausthal University of Technology who are involved in the center's numerous projects. Accordingly, their work was appropriately presented and honored at the CZM Graduate Day.
The topics covered were very wide-ranging: In analytics, for example, reports were given on the potential uses of neural networks for the automated evaluation of microscopic material images. In contrast to neural networks used in the environment recognition of autonomous vehicles, it is not pedestrians or other cars that are detected, but different groups of material inhomogeneities, which are of decisive importance for the resulting properties of the materials.
Test bench tests are suitable for determining component properties. A new test bench test was presented in another lecture. This was used as part of the development and testing of dry-running plain bearings with a compound sliding layer. The main focus was on the realistic representation of different load scenarios and the investigation of tribological friction and wear behavior. On this basis, positive proof of performance of developed prototypes under material-specific thermal limit loads was achieved.
Contact surfaces also play an important role in the adhesive strength of cylinder liners that are pressed into the inner cylinder surfaces of aluminum engine blocks. In order to achieve a high level of frictional contact, the inner cylinder surface must be roughened in a targeted manner. A new laser-based surface structuring process was developed and presented for this purpose. The process has already proven itself in practice. It is characterized by its high cost-effectiveness compared to known structuring processes. The latter was a contribution from the Laser Zentrum Hannover (LZH), which is also actively involved in the CZM. The ZIM network "Microsystems based on multifunctional material systems", which is based at CZM, also had an exhibitor stand.
The strong increase in interest in the event on the part of industry was pleasing. It is proof of the high attractiveness and qualification of the Clausthal graduates. On the other hand, the opening of the event to school students was intended to promote studying at Clausthal University of Technology so that the number of graduates in the subject areas presented would remain at a high level in the future.
Contact:
Dr.-Ing. Henning Wiche
Clausthaler Zentrum für Materialtechnik
E-mail: sekretariat@czm.tu-clausthal.de
Phone: +49 5323 72-3330
Fax: +49 5323 72-3399