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)
Hydrogen in aluminium can cause embrittlement and critical failure. However, the behaviour of hydrogen in aluminium was not yet understood. Scientists at the Max-Planck-Institut für Eisenforschung were able to locate hydrogen inside aluminium’s microstructure and designed strategies to trap the hydrogen atoms inside the microstructure. This can…
Hydrogen at crack tips can embrittle steels and lead to catastrophic material failure. In this project we develop a continuum model for the formation of hydride zones in the tensile regions of a crack tip. It changes the fracture properties of static and propagating fractures.
In this project, we directly image and characterize solute hydrogen and hydride by use of atom probe tomography combined with electron microscopy, with the aim to investigate H interaction with different phases and lattice defects (such as grain boundaries, dislocation, etc.) in a set of specimens of commercially pure Ti, model and commercial…
The goal of this project is to develop an environmental chamber for mechanical testing setups, which will enable mechanical metrology of different microarchitectures such as micropillars and microlattices, as a function of temperature, humidity and gaseous environment.
The project HyWay aims to promote the design of advanced materials that maintain outstanding mechanical properties while mitigating the impact of hydrogen by developing flexible, efficient tools for multiscale material modelling and characterization. These efficient material assessment suites integrate data-driven approaches, advanced…
Hydrogen embrittlement is a persistent mode of failure in modern structural materials. The processes related to HE span various time and spatial scales. Thus we are establishing multiscale approaches that are based on the parameters and insights obtained by accurate ab initio calculations in order to simulate HE at the continuum level.
In this project, the electrochemical and corrosion behavior of high entropy alloys (HEAs) have been investigated by combining a micro-electrochemical scanning flow cell (SFC) and an inductively coupled plasma mass spectroscopy (ICP-MS) element analysis.
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.
In this project, the effects of scratch-induced deformation on the hydrogen embrittlement susceptibility in pearlite is investigated by in-situ nanoscratch test during hydrogen charging, and atomic scale characterization. This project aims at revealing the interaction mechanism between hydrogen and scratch-induced deformation in pearlite.