A5103038509- Metallic Glasses and Amorphous Alloys
- Polymer Nanocomposite Synthesis and Irradiation
- Quantum Chromodynamics and Particle Interactions
- Particle physics theoretical and experimental studies
- Epoxy Resin Curing Processes
- High-Energy Particle Collisions Research
- Magnetic Properties and Applications
- Ion-surface interactions and analysis
- Magnetic Properties of Alloys
- Polymer Nanocomposites and Properties
- Mechanical Behavior of Composites
- Injection Molding Process and Properties
- Polymer crystallization and properties
- Synthesis and properties of polymers
- Polymer Foaming and Composites
- Rare-earth and actinide compounds
- Magnetic properties of thin films
- Iron-based superconductors research
- Cellular and Composite Structures
- Integrated Circuits and Semiconductor Failure Analysis
- Microstructure and mechanical properties
- Radiation Detection and Scintillator Technologies
- Magnetic and transport properties of perovskites and related materials
- Nuclear materials and radiation effects
- Polymer composites and self-healing
Technische Universität Dresden
2016-2025
RWTH Aachen University
2021
Leibniz Institute for Solid State and Materials Research
1991-2014
TU Wien
1989-2012
Helmholtz-Zentrum Berlin für Materialien und Energie
2009
Fraunhofer Institute for Telecommunications, Heinrich Hertz Institute
1971-2003
German Orient Foundation
1998-2002
University of Würzburg
1996
Institute of Physics
1993
Polish Academy of Sciences
1993
A fast crosslinking reaction is crucial for the economical production of automotive components in liquid composite molding (LCM) processes. Although a large number works have focused on modeling shrinkage induced surface waviness and part distortions underlying phenomena an accurate determination material properties under consideration processing parameters still represents major challenge fast-curing epoxy resins. Fast-curing polymers allow manufacturing thermoset parts minutes while...
Abstract Background Closed cell polymer bead foams are widely used in industrial applications due to their extraordinary damping and insulation properties. To understand the structure-property-relations at different deformation states volumetric structure of walls, cells beads should be statistically analysed. Objective The presented work is focused on statistical analysis changing expanded polypropylene density distinct compression states. Methods Cylindrical foam specimens scanned by x-ray...
Magnetic susceptibility and Mossbauer measurements are reported for amorphous (Fe1-xNix)77Si10B13 in a Ni concentration range 0.85<or=x<or=1, where the breakdown of magnetism occurs. The authors propose magnetic phase diagram which, x<0.91, long-range order undergoes transition to cluster-glass state. pronounced influence clusters upon temperature field dependence magnetisation is reflected strongly curved Arrott plots gives rise spin-wave contributions even alloys with low Curie...
Closed-cell bead foams with their hierarchical geometrical structure are a challenge for statistical reconstruction and finite element modelling. For the purpose of providing fundamental micro- meso-structural descriptors - wall thickness, cell as well volume sphericity expanded polypropylene different density, 3D-images from X-ray computed tomography analyzed. A detailed description development application an image analysis methodology determination feature distributions CT-scans level...
This study discusses the feasibility of using a combined torsional-axial rheometer to indirectly measure complex Poisson’s ratio based on shear and Young’s modulus. For this purpose, isothermal frequency sweeps in torsion extension are performed sequentially same cylindrical specimen under environmental conditions. The method is tested two amorphous polymers, semicrystalline polymer, polymer blend, copolymer. article includes an extensive literature review uncertainty assessment provide...
In this study, we systematically investigate the compression behavior of Expanded Polypropylene (EPP) bead foams using precise experiments in a custom-designed vacuum chamber. The material's response is examined under controlled pressure conditions, including tests at both ambient and 4 mbar, various strain rates. Considering that most consist more than 90% air, our focus on elucidating influence cell gas mechanical properties, such as modulus, plateau stress, slope, energy absorption....
To elucidate the discrepancies in low-temperature data reported on quantum critical heavy fermion compound ${\text{Ce}}_{3}{\text{Pd}}_{20}{\text{Si}}_{6}$ and reveal compound's intrinsic properties, single crystals of varying stoichiometry were grown by various techniques---from melt from high-temperature solutions using fluxes compositions. The resulting as well their physical properties show sizable dependence different growth techniques. Ce content $\ensuremath{\Delta}\text{Ce}$ varies...
Abstract The effect of 100 kGy dose 2 MeV electron irradiation on Poly(ethylene terepthalate) (PET) has been studied by different characterisation techniques such as the Fourier transformed IR spectroscopy, spin resonance thermogravimetric analysis, differential scanning calorimetry and X-ray diffraction analysis. Oxidative degradation leading to amorphisation polymer observed from spectral thermal stability was found decrease due irradiation. decomposition temperature well melting in case...
Process-induced surface waviness effects represent a major concern for series production of high-quality lightweight structures based on fiber reinforced plastics (FRP). This paper suggests method the numerical prediction these by using example processing glass (GFRP) in resin transfer molding (RTM) process. The influence reaction kinetics, chemical shrinkage and cure-dependent viscoelastic properties are taken into account. Furthermore, dependence quality curing cycle, consolidation...