Not all metal is the same. Copper is known to be an excellent heat conductor, but on the other side a very soft and ductile material. Its strength and hardness is far away from the one of steel, which is an alloy of iron and carbon. However, the thermal conductivity of steel is more than an order of...
Last year, Sebastian-Paul Kopp introduced a new technique for powder deposition in laser-based additive manufacturing of polymer structures. He transferred charged polymer particles to the build platform using a locally charged photoconductive plate. This enables high powder efficiency and the print...
Last year, Markus Labus and Peter Lang published on their new setup for optical temperature measurements in flames and aerosols.
They continued their efforts and now were able to demonstrate calibration-free imaging of temperature fields in flames containing indium particles. The fluorescent ligh...
Last year, Lisa Ackermann already published on beam shaping of high-energy lasers for materials processing by using spatial light modulators (SLMs). As she pointed out, a drawback is the presence of speckle noise, which overlays the shaped intensity structure and drastically reduces the beam quality...
A timeframe of 80 picoseconds is extremely short. In this interval, light rays – able to travel from the earth to the moon in about one second – go a distance of 2.5 millimeters only. In a joint project of Caltech, Gothenburg University, and FAU, Yogeshwar Nath Mishra and Florian Bauer now realized ...
As previously described, liquid organic hydrogen carrier (LOHC) fluids may play a major role in future energy storing, as they are able to reversibly store and release hydrogen molecules. This release, namely the dehydrogenation of the LOHC, is an endothermic reaction, which means it requires extern...
To safely store hydrogen as a future energy carrier, liquid organic hydrogen carrier (LOHC) systems are a highly promising option. In the presence of a catalyst, these organic molecules are able to repeatedly absorb and release hydrogen molecules through chemical reactions depending on the pressure ...
Last year, Florian Bauer published on his work on in-situ spectroscopy of soot formation. He continues his efforts in his recent publication on the “Characterisation of the transition type in optical band gap analysis of in-flame soot”. By monitoring the flame at two different positions, he uses abs...
Bastian Lehnert works on the optimization of 3D imaging of transient fuel sprays. His measurement technique is called ‘diffuse back illumination extinction imaging’. Simply said, the fuel spray is placed between an LED panel with specific characteristics and a High-Speed-Camera which records the lig...
Earlier this year, Dominic Bartels published his work on in-situ modification of case-hardening steel. He continues these efforts in his recent work “PBF-LB/M of Low-Alloyed Steels: Bainite-like Microstructures despite High Cooling Rates”. It focusses on the processing of this group of steels using ...
