Park, E.; Spiegel, M.: Effects of heat treatment on near surface elemental profiles of Fe–15Cr polycrystalline alloy. Corrosion Engineering, Science and Technology 40 (3), pp. 217 - 225 (2005)
Pöter, B.; Stein, F.; Wirth, R.; Spiegel, M.: Early stages of protective layer growth on binary iron aluminides. Zeitschrift für physikalische Chemie 219, pp. 1489 - 1503 (2005)
Parezanovic, I.; Poeter, B.; Spiegel, M.: B and N segregation on dual phase steel after annealing. Defect and Diffusion Forum 237 – 240, p. 934 - 934 (2005)
Parezanovic, I.; Spiegel, M.: Selective Oxidation and Surface Segregation in High Strength Steels during short term annealing in N2-H2 -Influence of B an surface chemistry. Steel Research Int. 76 (11), p. 832 - 832 (2005)
Park, E.; Hüning, B.; Spiegel, M.: Annealing of Fe–15Cr alloy in N2–5%H2 gas mixture: Effect of hydrogen concentration. Defect and Diffusion Forum 237-240, p. 928 - 928 (2005)
Park, E.; Hüning, B.; Spiegel, M.: Evolution of near-surface concentration profiles of Cr during annealing of Fe–15Cr polycrystalline alloy. Applied Surface Science 249 (1-4), pp. 127 - 138 (2005)
Pöter, B.; Parezanović, I.; Spiegel, M.: In-situ FE-SEM and EBSD Investigation on the Oxidation of Pure Iron. Mater. at High Temp. Proc. of Microscopy of Oxidation, pp. 9 - 18 (2005)
Cha, S. C.; Spiegel, M.: Fundamental studies on alkali chloride induced corrosion during combustion of biomass. Materials Science Forum 461–464, p. 1055 - 1055 (2004)
Grabke, H. J.; Spiegel, M.; Zahs, A.: Role of Alloying Elements and Carbides in the Chlorine-induced Corrosion of Steels and Alloys. Materials Research 7 (1), pp. 89 - 95 (2004)
Li, Y. S.; Spiegel, M.: Models describing the degradation of FeAl and NiAl alloys induced by ZnCl2/KCl melt at 400-450 °C. Corrosion Science 46, 8 (2004)
Parezanovic, I.; Spiegel, M.: Surface modification of various Fe-Si and Fe-Mn alloys by oxidation/reduction treatments. Surface Engineering 20, 2 (2004)
Parezanovic, I.; Strauch, E.; Spiegel, M.: Development of spinel forming alloys with improved electronic conductivity for MCFC application. Journal of Power Sources 135, pp. 52 - 61 (2004)
Ruh, A.; Spiegel, M.: Kinetic investigations on salt melt induced high temperature corrosion of pure metals. Materials Science Forum 461-464, pp. 61 - 68 (2004)
In this project, we investigate the phase transformation and twinning mechanisms in a typical interstitial high-entropy alloy (iHEA) via in-situ and interrupted in-situ tensile testing ...
Femtosecond laser pulse sequences offer a way to explore the ultrafast dynamics of charge density waves. Designing specific pulse sequences may allow us to guide the system's trajectory through the potential energy surface and achieve precise control over processes at surfaces.
The aim of this project is to develop novel nanostructured Fe-Co-Ti-X (X = Si, Ge, Sn) compositionally complex alloys (CCAs) with adjustable magnetic properties by tailoring microstructure and phase constituents through compositional and process tuning. The key aspect of this work is to build a fundamental understanding of the correlation between…
In this project, we employ a metastability-engineering strategy to design bulk high-entropy alloys (HEAs) with multiple compositionally equivalent high-entropy phases.
Solitonic excitations with topological properties in charge density waves may be used as information carriers in novel types of information processing.
In this project, links are being established between local chemical variation and the mechanical response of laser-processed metallic alloys and advanced materials.
In this project we conduct together with Dr. Sandlöbes at RWTH Aachen and the department of Prof. Neugebauer ab initio calculations for designing new Mg – Li alloys. Ab initio calculations can accurately predict basic structural, mechanical, and functional properties using only the atomic composition as a basis.
The wide tunability of the fundamental electronic bandgap by size control is a key attribute of semiconductor nanocrystals, enabling applications spanning from biomedical imaging to optoelectronic devices. At finite temperature, exciton-phonon interactions are shown to exhibit a strong impact on this fundamental property.