A5046072690- Geological and Geochemical Analysis
- High-pressure geophysics and materials
- Rock Mechanics and Modeling
- earthquake and tectonic studies
- Microstructure and mechanical properties
- Geotechnical and Geomechanical Engineering
- Mineral Processing and Grinding
- High-Velocity Impact and Material Behavior
- Plasma Diagnostics and Applications
- Mass Spectrometry Techniques and Applications
- Additive Manufacturing Materials and Processes
- High Entropy Alloys Studies
- Plasma Applications and Diagnostics
- Advanced Surface Polishing Techniques
- Seismic Imaging and Inversion Techniques
- Mineralogy and Gemology Studies
- Clay minerals and soil interactions
- Geomagnetism and Paleomagnetism Studies
- Semiconductor materials and devices
- Metallurgy and Material Forming
- Aluminum Alloy Microstructure Properties
- Analytical chemistry methods development
- Hydrocarbon exploration and reservoir analysis
- Image and Object Detection Techniques
- Seismic Waves and Analysis
ETH Zurich
2012-2024
École Polytechnique Fédérale de Lausanne
2005-2019
Technische Universität Dresden
2013
University of Illinois Urbana-Champaign
2005-2007
TU Dortmund University
2004-2006
Leibniz Institute for Analytical Sciences - ISAS
2001-2005
Kirchhoff (Germany)
2005
Geological Institute
2004
Board of the Swiss Federal Institutes of Technology
2001-2003
Clausthal University of Technology
1995
High-pressure and high-temperature torsion experiments on olivine aggregates in dislocation creep show about 15 to 20% strain weakening before steady-state behavior, characterized by subgrain-rotation recrystallization a strong lattice preferred orientation. Such may provide way focus flow the upper mantle without change deformation mechanism. Flow laws derived from low data not be appropriate for use modeling high regions. In such areas, seismic wave propagation will anisotropic with an...
A completely automated system which couples automatic analysis of electron backscatter diffraction patterns (EBSPs) with precise movement the sample in SEM is described. The Hough transform implemented into an existing technique for identifying lattice orientation through EBSPs. ability approach to correctly identify bands quantitatively compared Burns algorithm. Both methods were tested on 1000 EBSPs from well annealed oxygen‐free, electrical grade (OFE) copper, 120 as‐cast commercially...
A combined magneto-mineralogical approach is used to diagnose maghemitization in magnetic grains of basaltic rock fragments from sand dunes the Namibian desert SW Africa. Data were obtained static analysis, ferromagnetic resonance (FMR) spectroscopy, micro-Raman spectroscopy and electron microscopy. Micro-Raman showed that lithic form oxidative solid solution series with magnetite maghemite as end-members. The five active Raman modes at 712, 665, 507, 380 344 cm−1 indicate has well-defined...
Selective Laser Melting (SLM) is an additive manufacturing technology used to directly produce metallic parts from thin powder layers. To evaluate the anisotropic mechanical properties, tensile test specimens of Ni-base alloy Hastelloy X were built with loading direction oriented either parallel (z-specimens) or perpendicular build-up (xy- specimens). Specimens investigated in "as-built" condition and after high temperature heat treatment. Tensile tests at room 850°C material have shown...
Crystal orientation-dependent etching, charge-carrier trapping behaviour, and performance of single-crystal photocathodes are enabled by ammonia solution etching thermally-oxidised Cu 2 O.
Summary A new fully automated microfabric analyzer (MiFA) is described that can be used for the fast collection of high‐resolution spatial c‐axis orientation data from a set digital polarized light images. At onset an analysis user presented with axial‐distribution diagram (AVA –‘Achsenverteilungsanalyse’) thin section. It then simple matter to build‐up pole figures selected areas interest. The inclination and colatitudes at any pixel site immediately available create bulk fabric diagrams or...
In this study, we quantitatively investigate crystal-melt segregation processes in two upper-crustal, intermediate-to-silicic plutons from the Tertiary Adamello Batholith, Italian Alps, by combining (1) an estimation of amount crystallized interstitial liquid using cathodoluminescence images, phase maps, and mass-balance calculations with (2) quantification crystal preferred orientation electron backscatter diffraction. Cathodoluminescence plagioclase profiles are used together to...
Recent developments of miniaturized powerful and robust plasmas for analytical applications are reviewed. The described discussed may be used analyte detection in chromatographic or electrophoretic "lab-on-a-chip" systems.
This paper focuses on the diagnostics and applications of microhollow cathode discharge operated in Ar He at high pressures. The gas temperature electron number density are deduced from absorption emission spectroscopy employing line profile analysis. Additionally, a collisional radiative model is used for estimation He. increases 500 K 100 mbar to 2000 K 1000 mbar. also 2 × 1015 9 1015 cm−3 same pressure range. In He, reaches values up 800 K does not exceed 5 1014 cm−3 atmospheric pressure....