Events

Details

• Date: May 13, 2026 
• Time: 15:00 
• Location: Building D3, Room 1.05 

The seminar will be held on-site. Participants who are unable to attend in person are welcome to join online via MS Teams

About the Speaker

Professor Marek Dollar received his academic training at AGH University of Krakow (MS, PhD, DSc, and professorship). He has recently joined the Faculty of Space Technologies at his alma mater after a distinguished 40-year career in the United States. His experience includes positions at Carnegie Mellon University, Illinois Institute of Technology (where he served as Professor and founding Chair of the Department of Mechanical, Materials & Aerospace Engineering), and Miami University in Ohio (as Prorector and Founding Dean of the College of Engineering & Computing). 

Prof. Dollar has an outstanding research record in materials science, particularly in understanding structure–property relationships in high-temperature structural materials for aerospace applications. His current research focuses on ultra-high-temperature, multifunctional materials designed for extreme conditions in outer space. 

About the Seminar

High-entropy alloys (HEAs) have emerged as a transformative class of metallic materials with exceptional potential for extreme space environments. Unlike conventional alloys based on one principal element, HEAs consist of multiple principal elements in near-equiatomic proportions. This unique composition leads to high configurational entropy, significant lattice distortions, and sluggish diffusion, resulting in remarkable combinations of strength, ductility, thermal stability, and radiation tolerance. 

This seminar explores the scientific foundations and engineering potential of HEAs for space applications, with particular emphasis on refractory HEAs for ultra-high-temperature service. The mechanical behavior of these alloys will be discussed and compared with nickel-based superalloys currently used in aerospace systems.