Multiscale Characterization of Materials and Processes

Main research lines

  • Multiscale characterisation with optical and electron microscopy, X-rays, atom force microscopy, Raman spectroscopy, ultrasonic inspection. Some of the equipment we use for this are:
    • FIB-FEG-SEM, including 3D-EDS and 3D-EBSD. In-situ stages for thermomechanical testing.
    • FEG-TEM including 3D-STEM and 3D-EDS with in-situ stage for mechanical testing.
    • X-Ray Tomograph (XCT) with in-situ stage for thermomechanical testing, furnaces for thermal treatments and observation of chemical reactions, in-situ composite curing, in-situ composite infiltration.
    • X-ray Diffractometer (XRD) equipped for residual stresses and texture determination, reflectometry analysis, Cu and Cr radiation, linear detector, in-situ furnace.
    • Raman micro-spectrometer 5x, 20x, 50x, 100x microscope objectives, 532 nm Nd:YAG laser (50W) and diffraction grating of 1800 l/mm, 100 nm resolution.
  • Characterisation of broad range of materials, e.g. biomaterials, plastics, metal matrix composites, fibre reinforced composites, metals, nanomaterials, etc.
  • Use of large facilities such as neutron or synchrotron radiation facilities for characterisation.
  • Development of new methodologies (e.g. hardware for in situ testing and software tools) for material characterisation and analysis, also applying artificial intelligence methods.
  • Spectroscopic/microscopic studies and implementation in electrochemical energy storage devices such as Li-ion, Na-ion, Li-S and Li-O2.
  • Thermo-mechanical testing across several length scales: tension, compression, fatigue, creep, etc. in the scanning electron microscope and X-ray tomograph.
  • Properties and deformation mechanisms of small volumes by nanomechanical testing in the scanning and transmission electron microscopes: properties of metallic phases, interfaces, nanoparticles, carbon-based nanomaterials (carbon nanotubes, graphene, etc).
  • Elevated temperature nanomechanical testing.
  • 4D characterisation of processes by X-ray tomography and X-ray diffraction: e.g. metallic alloy solidification, metallic alloy phase formation and chemical reactions, infiltration and resin flow in composites, composite curing, etc.
  • Digital modelling from 3D structures.
  • Integration of experimental statistical measurements into models.
  • Experimental confirmation of modelling results.
  • Experimental design based on models.