Valtiner, M.; Grundmeier, G.: Towards a deeper understanding of molecular adhesion mechanisms by a combined approach of single molecule adhesion and DFT studies. 23. Workshop “Novel Materials and Superconductors”, Universitätssportheim Planneralm, Donnersbach, Austria (2008)
Valtiner, M.; Grundmeier, G.: Molecular Adhesion Mechanisms on Single Crystalline, Hydroxide Stabilized ZnO(0001) Surfaces. MRS fall meeting 2007, Boston, MA, USA (2007)
Valtiner, M.; Grundmeier, G.: Towards a better understanding of adhesion by a combined approach of single molecule adhesion and DFT studies. ECASIA 07, Brussels, Belgium (2007)
Todorova, M.; Valtiner, M.; Neugebauer, J.: Stabilisation of polar ZnO(0001) surfaces in dry and humid environment. FIESTAE - Frontiers in Interface Science: Theory and Experiment, Berlin, Germany (2011)
Todorova, M.; Valtiner, M.; Grundmeier, G.; Neugebauer, J.: Temperature Stabilised surface reconstructions at polar ZnO(0001). Gordon Research Seminar ''Corrosion - Aqueous'', Colby-Sawyer College, New London, NH, USA (2010)
Keil, P.; Valtiner, M.; Grundmeier, G.: In-situ XAS investigations of the ZnO(0001)–Zn surface and electrolyte interface during dissolution and as a function of pH. Gordon Research Conference, Science of Adhesion, Colby-Sawyer College, New London, NH, USA (2009)
Grundmeier, G.; Valtiner, M.: Nanoscopic understanding of the surface chemistry and stability of polar ZnO(0001)-Zn surfaces in aqueous solutions. The 59th Annual Meeting of the International Society of Electrochemistry, Seville, Spain (2008)
Valtiner, M.; Grundmeier, G.: Acidic dissolution mechanism, pH-dependent stability and adhesion of single molecules studied on single crystalline ZnO(0001)–Zn model surfaces by in-situ AFM studies. Gordon Conference Graduate Research Seminar on Aqueous Corrosion, Colby Sawyer College, New London, NH, USA (2008)
Valtiner, M.; Grundmeier, G.: Acidic dissolution mechanism, pH-dependent stabilization and adhesion of single molecules on single crystalline ZnO(0001)–Zn model surfaces studied by in-situ AFM and DFT simulation. PSI-k Summerschool for Modern Concepts for Creating and Analyzing Surfaces and Nanoscale Materials, Sant Feliu de Guixols, Spain (2008)
Valtiner, M.; Grundmeier, G.: Study of Molecular Adhesion on ZnO(0001) by means of Single Molecule Adhesion Studies. 15th WIEN2k workshop, Vienna, Austria (2008)
Valtiner, M.; Keil, P.; Grundmeier, G.: The structure of the ZnO(0001)-Zn surface and interface during acidic dissolution. HASYLAB users' meeting 2007 "Research with Synchrotron Radiation and FELs, Hamburg, Germany (2007)
Valtiner, M.: Non-linear optics. Lecture: Specialized class on “Non-linear optics”, RUB (substituted for Prof. K. Morgenstern), SS 2014, Bochum, Germany, April 01, 2014 - September 30, 2014
Erbe, A.; Valtiner, M.; Muhler, M.; Mayrhofer, K. J. J.; Rohwerder, M.: Physical chemistry of surfaces and interfaces. Lecture: Course for PhD students of the IMPRS Surmat, Ruhr-Universität Bochum, Bochum, Germany, October 01, 2013 - October 31, 2013
Hu, Q.: A Contribution to Elucidate Interfacial Electric Double Layer Structures and Their Effects on Tribological Phenomena Using Force Microscopy. Dissertation, Fakultät für Maschinenbau der Ruhr-Universität Bochum, Bochum, Germany (2018)
Utzig, T.: A contribution to understanding interfacial adhesion based on molecular level knowledge. Dissertation, Fakultät für Maschinenbau, Ruhr-Universität Bochum, Bochum, Germany (2016)
Valtiner, M.; Grundmeier, G.: Atomistic Understanding of Structure, Stability and Adhesion at ZnO/Electrolyte Interfaces. Dissertation, Technische Universität Wien, Fakultät der technischen Chemie, Wien, Austria (2008)
Möllmann, V.; Keil, P.; Valtiner, M.; Wagner, R.; Lützenkirchen-Hecht, D.; Frahm, R.; Grundmeier, G.: Structural properties of Ag@TiO2 nanocomposites measured by means of refection mode XAS measurements at beamline 8. (2008)
Valtiner, M.; Keil, P.; Grundmeier, G.: In-situ reflection mode XAS measurements of non equilibrium dissolution processes in aqueous electrolytes at beamline E2. (2007)
International researcher team presents a novel microstructure design strategy for lean medium-manganese steels with optimized properties in the journal Science
About 90% of all mechanical service failures are caused by fatigue. Avoiding fatigue failure requires addressing the wide knowledge gap regarding the micromechanical processes governing damage under cyclic loading, which may be fundamentally different from that under static loading. This is particularly true for deformation-induced martensitic…
Copper is widely used in micro- and nanoelectronics devices as interconnects and conductive layers due to good electric and mechanical properties. But especially the mechanical properties degrade significantly at elevated temperatures during operating conditions due to segregation of contamination elements to the grain boundaries where they cause…
The full potential of energy materials can only be exploited if the interplay between mechanics and chemistry at the interfaces is well known. This leads to more sustainable and efficient energy solutions.
In this project we work on correlative atomic structural and compositional investigations on Co and CoNi-based superalloys as a part of SFB/Transregio 103 project “Superalloy Single Crystals”. The task is to image the boron segregation at grain boundaries in the Co-9Al-9W-0.005B alloy.
In this project, we investigate a high angle grain boundary in elemental copper on the atomic scale which shows an alternating pattern of two different grain boundary phases. This work provides unprecedented views into the intrinsic mechanisms of GB phase transitions in simple elemental metals and opens entirely novel possibilities to kinetically engineer interfacial properties.
Within this project, we will use a green laser beam source based selective melting to fabricate full dense copper architectures. The focus will be on identifying the process parameter-microstructure-mechanical property relationships in 3-dimensional copper lattice architectures, under both quasi-static and dynamic loading conditions.