Dehm, G.; Scheu, C.; Rühle, M.; Raj, R.: Growth and Structure of Internal Cu/Al2O3 and Cu/Ti/Al2O3 Interfaces. Acta Materialia 46 (3), pp. 759 - 772 (1998)
Scheu, C.; Dehm, G.; Kaplan, W. D.; Wagner, F.; Claussen, N. E.: Microstructure and Phase Evolution of Niobium-Aluminide-Alumina Composites Prepared by Melt-Infiltration. Physica Status Solidi A 166 (1), pp. 241 - 255 (1998)
Dehm, G.; Scheu, C.; Möbus, G.; Brydson, R.; Rühle, M.: Synthesis of Analytical and High Resolution Transmission Electron Microscopy to Determine the Interface Structure of Cu/Al2O3. Ultramicroscopy 67 (1-4), pp. 207 - 217 (1997)
Dehm, G.; Scheu, C.; Raj, R.; Rühle, M.: Growth, structure and interfaces of Cu and Cu/Ti thin films on (0001)alpha-Al2O3. Materials Science Forum 207-209 (1), pp. 217 - 220 (1996)
Clemens, H.; Mayer, S.; Scheu, C.: Microstructure and Properties of Engineering Materials. In: Neutrons and Synchrotron Radiation in Engineering Materials Science: From Fundamentals to Applications: Second Edition, pp. 3 - 20 (Eds. Schreyer, A.; Clemens, H.; Mayer, S.). wiley, Hoboken, NJ, USA (2017)
Microstructure of Ni2B Laser-Induced Surface-Alloyed α-Fe (Materials Resaerch Symposium Proceedings, Phase Transformations and Systems Driven far from Equilibrium, 481). MRS Fall Meeting´97, Boston, MA, USA. (2001)
Hieke, S. W.; Willinger, M. G.; Wang, Z.-J.; Richter, G.; Dehm, G.; Scheu, C.: In situ electron microscopy – insights in solid state dewetting of epitaxial Al thin films on sapphire. In: Microscopy Conference 2017 (MC 2017) - Proceedings (Ed. Laue, M.). Microscopy Conference 2017 (MC 2017), Lausanne, Switzerland, August 21, 2017 - August 25, 2017. Universität Regensburg, Regensburg (2017)
Folger, A.; Wisnet, A.; Scheu, C.: Defects in as-grown vs. annealed rutile titania nanowires and their effect on properties. EMC 2016, 16th European Microscopy Congress, Lyon, France, August 28, 2016 - September 02, 2016. European Microscopy Congress 2016: Proceedings, pp. 409 - 410 (2016)
Hieke, S. W.; Dehm, G.; Scheu, C.: Investigation of solid state dewetting phenomena of epitaxial Al thin films on sapphire using electron microscopy. In: European Microscopy Congress 2016: Proceedings, pp. 203 - 204. The 16th European Microscopy Congress (EMC 2016), Lyon, France, August 28, 2016 - September 02, 2016. Wiley-VCH Verlag GmbH & Co KGaA (2016)
Cha, L.; Scheu, C.; Dehm, G.: A TEM study of ultra-fine lamellar structures in titanium aluminide. In: 9th Multinational Microscopy Conference 2009 Materials Science, Vol. 3, pp. 247 - 248 (Eds. Kothleitner, G.; Leisch, M.). 9th Multinational Microscopy Conference 2009, Graz, Austria, August 30, 2009 - September 04, 2009. Verlag der Technischen Universität Graz, Graz, Austria (2009)
Cha, L.; Scheu, C.; Dehm, G.; Schnitzer, R.; Clemens, H. J.: Initial stages of lamellae formation in high Nb containing γ-TiAl based alloys. In: Materials Research Society Symposium Proceedings 2009, Vol. 1128, pp. 153 - 158. MRS Fall Meeting 2009, Boston, MA, USA, November 30, 2009 - December 04, 2009. (2009)
Rester, M.; Cha, L.; Scheu, C.; Dehm, G.; Clemens, H. J.; Kothleitner, G.; Leisch, M.: Microstructure of a massively transformed high Nb containing γ-TiAl based alloy. In: 9th Multinational Microscopy Conference 2009, pp. 231 - 232 (Eds. Kothleitner, G.; Leisch, M.). 9th Multinational Microscopy Conference 2009, Graz, Austria, August 30, 2009. Verlag der Technischen Universität Graz, Graz, Austria (2009)
Rashkova, B.; Kothleitner, G.; Šturm, S.; Scheu, C.; Kutschej, K.; Mitterer, C.; Lazar, P.; Redinger, J.; Podloucky, R.; Dehm, G.: A Comparison of the Electronic Structure of N–K in TiN and VN using EELS and Ab-initio Calculations. In: Proceeding 33rd Microscopy Conference, Deutsche Gesellschaft für Elektronenmikroskopie, pp. 414 - 415. Microscopy 33rd Conference, Deutsche Gesellschaft für Elektronenmikroskopie, Saarbrücken, Germany, September 02, 2007 - September 07, 2007. (2007)
Wetscher, F.; Pippan, R.; Šturm, S.; Kauffmann, F.; Scheu, C.; Dehm, G.: Microstructural evolution of a pearlitic steel during severe plastic deformation. In: 7th Multinational Congress on Microscopy. 7th Multinational Congress on Microscopy, Portorož, Slovenia, June 26, 2005 - June 30, 2005. (2005)
Multiple Exciton Generation (MEG) is a promising pathway towards surpassing the Shockley-Queisser limit in solar energy conversion efficiency, where an incoming photon creates a high energy exciton, which then decays into multiple excitons.
In this project, we aim to design novel NiCoCr-based medium entropy alloys (MEAs) and further enhance their mechanical properties by tuning the multiscale heterogeneous composite structures. This is being achieved by alloying of varying elements in the NiCoCr matrix and appropriate thermal-mechanical processing.
The exploration of high dimensional composition alloy spaces, where five or more alloying elements are added at near equal concentration, triggered the development of so-called high entropy (HEAs) or compositionally complex alloys (CCAs). This new design approach opened vast phase and composition spaces for the design of new materials with advanced…
This project studies the mechanical properties and microstructural evolution of a transformation-induced plasticity (TRIP)-assisted interstitial high-entropy alloy (iHEA) with a nominal composition of Fe49.5Mn30Co10Cr10C0.5 (at. %) at cryogenic temperature (77 K). We aim to understand the hardening behavior of the iHEA at 77 K, and hence guide the future design of advanced HEA for cryogenic applications.
Interstitial alloying in high-entropy alloys (HEAs) is an important strategy for tuning and improving their mechanical properties. Strength can be increased due to interstitial solid-solution hardening, while interstitial alloying can simultaneously affect, e.g., stacking fault energies (SFEs) and thus trigger different deformation mechanisms…
To advance the understanding of how degradation proceeds, we use the latest developments in cryo-atom probe tomography, supported by transmission-electron microscopy. The results showcase how advances in microscopy & microanalysis help bring novel insights into the ever-evolving microstructures of active materials to support the design of better…
In this project, we aim at significantly enhancing the strength-ductility combination of quinary high-entropy alloys (HEAs) with five principal elements by simultaneously introducing interstitial C/N and the transformation induced plasticity (TRIP) effect. Thus, a new class of alloys, namely, interstitially alloyed TRIP-assisted quinary (five-component) HEAs is being developed.
The Magnetic Moment Tensor Potentials (mMTPs) are a class of machine-learning interatomic potentials, which could accurately reproduce both vibrational and magnetic degrees of freedom as provided, e.g., from first-principles calculations [1]. Application to prototypical bcc iron has demonstrated that these potentials are capable to quantitatively…