DLR's Institute of Frontier Materials in Space investigates fundamental physical processes in materials, from the microscopic scale to macroscopic properties, both in model systems for new materials and in applied materials, on Earth and in space. To this end, we combine the development of space flight hardware, experiments on research rockets, parabolic flights and in the drop tower, as well as modelling with theory and simulation on all scales in order to understand the influence of gravity on physical processes.

For the investigation of surface tension of liquid Ti-alloys under oxygen adsorption

What to expect 

The institute offers young scientists excellent research and working conditions in an international environment, as well as the opportunity to add to the text knowledge of tomorrow in an exciting project. The DLR offers with its DLR-Graduate program numerous options to broaden your skills beyond pure research.

Your tasks 

Titanium-based alloys combine high tensile strengths as well as low specific weights with high temperature stabilities and corrosion resistances. Due to this advantageous combination of properties, they play important roles in aerospace, the automotive industry, energy technology and medical applications. Thermophysical properties of liquid metals are decisive in connection with the production of such alloys, whereby the influence of oxygen adsorption on processes at liquid surfaces and interfaces plays a key role. So far, this has only been poorly understood.
It is therefore the goal of your doctoral thesis to gain a deeper understanding of the adsorption mechanisms of oxygen on surfaces of liquid metals and to investigate the surface tension of Ti-based liquid alloys depending on the oxygen partial pressure and their oxygen bulk- and surface concentrations.
Experiments are carried out using modern, non-contact methods, in particular using electromagnetic levitation and a special oxygen measurement and control system ("OSC"). In addition to the careful implementation and analysis of your measurements with the help of a model that you have expanded, a substantial part of your work comprehends the utilization of microgravity (parabolic flights). You will have the rare and absolutely unique opportunity to carry out some of your experiments using a similar apparatus like yours in space onboard the international space station ISS.

Your profile 

• For our experimental work, we are looking for a highly motivated doctoral student with a degree in physics, chemistry, materials science (or related subjects).
• Experience in vacuum technology and rudimentary programming knowledge in one of the common languages ​​(C / C ++, Python, etc.) are desirable.

 We look forward to getting to know you!

If you have any questions about this position (Vacancy-ID 3519) please contact:

Jürgen Brillo

Phone +49 2203 601 2917