Materials Characterization and Advanced Coatings - Jozef Kaiser
CEITEC BUT CEITEC BUT
Materials Characterization and Advanced Coatings - Jozef Kaiser

Management

Prof. Jozef Kaiser, Ph.D. Prof. Jozef Kaiser, Ph.D.
Research Group Leader

Research areas

  • Development of novel approaches in materials characterization following todays demands, i.e. combination of micro- and nano-structural studies, optoelectronic characterization of micro- and nano-structures, tribology, Laser-Induced Breakdown Spectroscopy (LIBS) and Computed Tomography (μCT, nanoCT).
  • Formation of advanced coatings with desirable functional characteristics via the application of advanced technologies and their characterization from macro- down to nano-scale.

Main objectives

Our main objectives are mainly focused on providing insights into current scientific trends and future demands as well as to perform development (R&D) activities within a broad range of topics which include transport (aerospace, automotive), power generation industry, biomaterials and electronics. Worldwide, there is a growing demand for both high-quality multidisciplinary research performance as well as scientific results of excellent quality, reaching the industrial level. In this regard, the research capabilities of the group have been already demonstrated in fundamental research and also through the strong cooperation with a variety of industrial partners in applied research. Thus, we are continuously focused on performing onwards in both national and international multidisciplinary contexts with excellent results.


Content of research

Laser Induced Breakdown Spectroscopy (LIBS)

LIBS technique enables the fast and even in-situ and stand-off elemental analysis of solid, liquid or gaseous samples from various scientific and industrial areas.

  • Clinical research (detection of nanoparticles and heavy metals in organs)
  • Foundry and metallurgy (detection of C, S, P, fast on-line quality control)
  • Automotive (characterization of thin surface coatings, selective detection of elements in materials layers)
  • Mining and extraterrestrial research (rock identification, quantification of trace elements)
  • Agriculture and environmental diagnostics (detection of fertilizers and toxicity contamination)
  • Archaeology, forensics (e.g. braking track detection), civil engineering, etc

X-ray micro CT and nano CT

  • Development and application of micro- and nano-radiography and computed tomography (μCT, nanoCT) techniques and their combination with other analytical approaches
  • High-resolution 3D metrology and non-destructive materials investigation of inner/outer structure for both fundamental and applied research in a broad range of applications
    • Mechanical, Materials, Electrical and Civil Engineering (development, troubleshooting & reverse engineering, quality and inner/outer shape control of components from plastics, ceramics, light metal castings, wood)
    • Food industry (bone fragments in meat)
    • Modern medicine (study of implants, complex studies of animal embryos)
    • Forensic science, legal engineering, and criminology

Advanced Coatings

  • Development and deposition of coatings by thermal spray methods (e.g. flame, twin wire arc, atmospheric plasma spray, high-velocity oxyfuel spray) and anodization/electrodeposition techniques for various scientific and industrial areas.
  • Aerospace and automotive (diffusion coatings, thermal barrier coatings, abradable coatings, decorative coatings).
  • Power generation (cavitation resistant coatings, wear resistant coatings, hydrophobic coatings).
  • Biomaterials (protective coatings for biodegradable metallic or composite implants).
  • Mechanical and electrical engineering (resistant heater coatings, anodizing of metals and polymers).
  • Processing of metallic, ceramic, composite and aerogel materials by advanced methods (Spark plasma sintering/extrusion, 3D printing, supercritical liquid extraction)
  • Testing of above mentioned coatings as well as bulk materials by traditional and advanced techniques, for example:
    • isothermal and cyclic furnace oxidation (prototype device),
    • burner fig test (prototype device),
    • slurry abrasion resistance test  (prototype device),
    • corrosion tests at various temperatures,
    • cavitation test in cavitation track.

Nano and micro Tribology

  • Nanotribology, surface texturing, friction and wear properties of surface layers and coatings.
  • Molecular degradation of lubricants, thin-film-lubrication studies under non-steady-state conditions, transient behaviour of elastohydrodynamic contact.
  • Biotribology and the effect of proteins in biotribology applications.

Optoelectronic Characterization of Nanostructures

  • Improvement of diagnostic methods used for testing semiconductor materials and electronic components and structures.
  • Determination of correlations between the properties and the geometrical and structural parameters of nanostructures.
  • Low-frequency noise – analysis of bulk and interface defects, determining quality and reliability of electronic devices.
  • Development of highly sensitive sensors for the detection of chemical substances dissolved in gases or liquids.
  • Experimental and theoretical research of stochastic processes and charge carrier transport as the basis for new advanced technologies.
  • Electromagnetic emission in dielectrics for the monitoring of the generation and growth of cracks under mechanical load.

 

 


News

All news