, in which the the change in volume of the liquid column is read from a graduated scale. Because mercury has a fairly constant rate of expansion over normal temperature ranges, the volume changes are directly related to temperature. Applications Dilatometers have been used in the fabrication of metallic alloys, compressed and sintered refractory compounds, glasses, ceramic products, composite materials, and plastics.Hans Lehmann, refuge Gatzke Dilatometrie and differential thermal analysis for… (More on Dilatometer)