Determination of the thermal expansion of solids and their respective thermal expansion coefficients (α) at temperature ranges. The analyses are carried out using contact thermodilatometers, responsible for controlled heating of the samples (at heating rates of up to 5oC/min, from room temperature to a maximum of 1100oC). In addition to dilatometric curves and thermal expansion coefficients, the analyses allow the identification of glass transition and softening temperatures in vitreous materials and can be used to predict the development of stresses caused by differences in thermal expansion between materials of different natures.
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