Dynamic mode – the flexible side of nanoindentation
In material testing, the dynamic method has increasingly come to complement classic nanoindentation. Analogous to dynamic-mechanical analysis (DMA), it allows investigation of the visco-elastic properties of substances and depth-dependent determination of their modulus of indentation.
While DMA focuses on solid materials testing, Fischer's dynamic mode also allows for the characterization of materials on much smaller scales, e.g. coatings like car paints. To accomplish this, an indenter is pressed into the surface with sinusoidally increasing and decreasing force – all with an amplitude of just a few nanometers.
Another field of application for Fischer's dynamic mode is the characterization of polymers at different temperatures. To this end, the automated HM 500 and HM 2000 systems can be further equipped with the SHS 200 heating table, which – using sensors both in the table and directly on the sample – always ensures the right measuring conditions.
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