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• Choose your probe Various types of probes can be fitted to the TMA transducer, dependingon the application to be carried out: - the “compression” 1 probe with a flat or spherical end for studying compression. Applied without force on the sample, it is used for measu- ring coefficients of expansion- the “penetration” 2probe with a small cross-section tip. With this probe,high pressures can be produced on the sample- the “three-point, flexure” 3 probe made up of a base with two knives anda rod with a knife-shaped cross section- the “tensile” 4 probe comprising a lower clamp fixed to the measuringtube and an upper clamp joined to the probe, for studying fibers and filmsunder tensile force- the “volume-expansion” 5 probe comprising a crucible and a flat-bottomed probe, for studying expansion in powders.
Dilatometric analysis of a polycarbonate • Varied applications depending on theprobes and the temperature Particularly appropriate for measuring variations in size of solids or powders, the SETSYS Evolution TMA is used for characterizing polymers and compounds (softening, glass transition, degradation, reticulation) under varied stresses, for studying films and fibers, for sintering ceramics, for studying the thermal behavior of alloys and, more generally, for measuringcoefficients of expansion.
Glass transition, softening temperature and dilatation coefficient of a glass Dilatation of a industrial graphite sample Sample holder 12345