2025-05-07 |
On 7 May 2025 Katharina Beck from the DECHEMA Research Institute successfully defended her dissertation entitled “Hot Corrosion and Oxidation Protection of Mo-based Refractory Metal Silicides” at the University of Bayreuth.
The thesis was part of the MatCom-ComMat (Materials Compounds from Composite Materials for Applications in Extreme Conditions) research training group in cooperation with the Karlsruhe Institute of Technology and the Technical University of Darmstadt. The research focused on the oxidation and hot corrosion behavior of two novel Mo-Si-Ti alloys and the development of protective coatings. The use of these Mo-based refractory metal alloys could significantly increase the efficiency of turbine engines, as they enable higher combustion temperatures and have a significantly lower density when compared to conventional Ni-based alloys. In Ms. Beck's work, the oxidation and hot gas corrosion mechanisms of the uncoated Mo-based alloys were clarified, two protective coatings were developed and the influences of the different coating elements were investigated.
