Stein, F.; Sauthoff, G.; Palm, M.: Experimental Determination of the Ternary Fe–Al–Zr Phase Diagram. Discussion Meeting on the Development of Innovative Iron Aluminium Alloys, Düsseldorf, Germany (2004)
Palm, M.; Sauthoff, G.: Manufacturing and Testing of a Novel Advanced NiAl-Base Alloy for Gas Turbine Applications. Materials for Advanced Power Engineering 2002 (Proc. 7th Liège Conference), Liege (2002)
Ducher, R.; Lacaze, J. C.; Stein, F.; Palm, M.: Experimental Study of the Liquidus Surface of the Al–Fe–Ti System. Thermodynamics of Alloys - TOFA 2002, Univerità degli Studi di Roma “La Sapienza”, Rome, Italy (2002)
Ducher, R.; Stein, F.; Palm, M.; Lacaze, J. C.: Nouvelle évaluation de la surface de liquidus du système ternaire Ti–Al–Fe. CPR “Intermetalliques base titane”, Seminar “Alliages TiAl”, Aspet, Haute-Garonne, France (2002)
Stein, F.; Palm, M.; Sauthoff, G.: New results on intermetallic phases, phase equilibria, and phase transformation temperatures in the Fe–Zr system. Materials Week 2000, München, Germany (2000)
Eumann, M.; Palm, M.; Sauthoff, G.: Constitution, Microstructure and Mechanical Properties of Ternary Fe–Al–Mo Alloys. EUROMAT 99, Munich, Germany (1999)
Palm, M.; Stein, F.: Phase Equilibria in the Al-rich part of the Al–Ti system. 2nd International Symposium on Gamma Titanium Aluminides, TMS Annual Meeting, San Diego, CA, USA (1999)
Palm, M.; Gorzel, A. H.; Letzig, D.; Sauthoff, G.: Structure and Mechanical Properties of Ti–Al–Fe Alloys at Ambient and High Temperatures. Structural Intermetallics 1997, Seven Springs, PA, USA (1997)
Palm, M.; Kainuma, R.; Inden, G.: Reinvestigation of Phase Equilibria in the Ti-rich Part of the Ti–Al System. Journées d´Automne 1996, Paris, France (1996)
Kainuma, R.; Palm, M.; Inden, G.: Experimentelle Untersuchungen der Hochtemperaturgleichgewichte im System Ti–Al. DGM Hauptversammlung 1993, Friedrichshafen, Germany (1993)
Palm, M.: Phase Equilibria and Phase Diagrams. Lecture: 4th MSIT Winter School on Materials Chemistry, Castle Ringberg, Tegernsee, February 16, 2020 - February 20, 2020
Palm, M.: Phase diagrams and phase transformations. Lecture: Education Seminar 5th International Workshop on Titanium Aluminides, Tokyo, Japan, August 28, 2016
In this project we study - together with the department of Prof. Neugebauer and Dr. Sandlöbes at RWTH Aachen - the underlying mechanisms that are responsible for the improved room-temperature ductility in Mg–Y alloys compared to pure Mg.
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.
Oxides find broad applications as catalysts or in electronic components, however are generally brittle materials where dislocations are difficult to activate in the covalent rigid lattice. Here, the link between plasticity and fracture is critical for wide-scale application of functional oxide materials.
Efficient harvesting of sunlight and (photo-)electrochemical conversion into solar fuels is an emerging energy technology with enormous promise. Such emerging technologies depend critically on materials systems, in which the integration of dissimilar components and the internal interfaces that arise between them determine the functionality.
Enabling a ‘hydrogen economy’ requires developing fuel cells satisfying economic constraints, reasonable operating costs and long-term stability. The fuel cell is an electrochemical device that converts chemical energy into electricity by recombining water from H2 and O2, allowing to generate environmentally-friendly power for e.g. cars or houses…
The project Hydrogen Embrittlement Protection Coating (HEPCO) addresses the critical aspects of hydrogen permeation and embrittlement by developing novel strategies for coating and characterizing hydrogen permeation barrier layers for valves and pumps used for hydrogen storage and transport applications.
We have studied a nanocrystalline AlCrCuFeNiZn high-entropy alloy synthesized by ball milling followed by hot compaction at 600°C for 15 min at 650 MPa. X-ray diffraction reveals that the mechanically alloyed powder consists of a solid-solution body-centered cubic (bcc) matrix containing 12 vol.% face-centered cubic (fcc) phase. After hot compaction, it consists of 60 vol.% bcc and 40 vol.% fcc. Composition analysis by atom probe tomography shows that the material is not a homogeneous fcc–bcc solid solution