Miniaturisierte in-situ Druckversuche an Hartstoffschichten

Translated title of the contribution: Miniaturized in-situ compression tests on hard coatings

Hans-Peter Wörgötter

Research output: ThesisDiploma Thesis

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Abstract

Coatings are very important for numerous industrial applications such as increasing the wear resistance of tools, providing thermal conductivity to components in engines or electric conductivity in microelectric devices. The mechanical properties of the coatings are of prime concern. The practicability of performing miniaturized compression tests in order to determine mechanical properties of various thin films was analysed. A polycrystalline tungsten coating and as comparison a tungsten single crystal were tested. Furthermore two single crystal hard coatings (vanadium nitride and titanium nitride) were compression tested. The compression samples were fabricated using a focused ion beam microscope. The deformation of the sample was observed and in-situ recorded by a scanning electron microscope. From the measured load-displacement data true stress-true strain curves were calculated and discussed.
Translated title of the contributionMiniaturized in-situ compression tests on hard coatings
Original languageGerman
QualificationDipl.-Ing.
Supervisors/Advisors
  • Dehm, Gerhard, Supervisor (internal)
Award date26 Jun 2009
Publication statusPublished - 2009

Bibliographical note

embargoed until null

Keywords

  • vanadium nitride titanium nitride tungsten compression pillar micro-indenter nano-indentation focused ion beam microscope hard coating

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