Call for Junior (PostDoc) Position in the area of Materials Science

Post-doc position for two-years period from the 1st January 2022

Faculty of Mathematics and Physics, Charles University

 

Research Project

Traditional metallic alloys are based on one or two principal elements with minor additions of alloying elements. In terms of phase diagrams, when developing traditional alloys, material scientists explore corners of multi-element phase diagrams. In the recent years there is a growing interest in exploring central parts of these phase diagrams. This new approach resulted in the development of a new class of alloys often referred to as Complex Concentrated Alloys (CCA).  The increasing number and content of alloying elements in such materials enhances the role of configurational entropy. To emphasize the effect of entropy, the alloys composed of at least five elements with concentrations between 5 and 35 at. % are called High Entropy Alloys (HEA). Refractory HEA (RHEA) contain at least four of the nine refractory elements: Cr, Hf, Mo, Nb, Ta, Ti, V, W and Zr. In addition, Al is often used to decrease the alloy density. Refractory HEA are either single-phase disordered bcc phase (A2) or multi-phase containing ordered bcc structure (B2, CsCl), Laves phase, hcp phase and various binary and pseudo-binary intermetallic compounds. The alloys are potentially applicable in aerospace industry, nuclear energy and utilization of fusion power (i.e. application under extreme conditions).

Complicated chemical and phase composition requires detailed microstructural analysis including analysis using transmission electron microscopy (TEM).

The successful candidate will join the Department of Physics of Materials and will be primarily responsible for the TEM studies of newly developed RHEA including analytical methods of electron diffraction and energy dispersive spectroscopy. In addition, the candidate will cooperate on SEM and XRD studies of these materials.

The applicant should have a doctorate in materials science or materials engineering. Previous experience with transmission electron microscopy is essential.

 

Workplace: Department of Physics of Materials (Faculty of Mathematics and Physics, Charles University), Ke Karlovu 5, 121 16, Prague 2, Czech Republic.

Contact person: prof. RNDr. Miloš Janeček, CSc.

E-mail: janecek@met.mff.cuni.cz

Position available from: January 1, 2022

 

Applicants should submit:

to: janecek@met.mff.cuni.cz (project supervisor) and in a copy to brozkova@dekanat.mff.cuni.cz (faculty coordinator of the Post-doc Research Fund).

Deadline date: July 26, 2021