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    Research infrastructures

    Thermogravimetry-Differential Scanning Calorimetry: TGA-DSC

    Location

    Research Support Building (CACTUS). Lugo
    Campus Lugo s/n, 27002
    Lugo
    Schedule
    Monday to Friday, from 10 a.m. to 2 p.m. and from 4 p.m. to 6 p.m.
    • Operational equipment
    The measurement of the change in mass of a sample with temperature is performed on a thermobalance and is known as thermogravimetry.

      Differential scanning calorimetry is a technique for measuring the heat flux of a sample and a reference material as a function of temperature. The signal obtained is the energy absorbed or emitted by the sample.

      The simultaneous TGA-DSC equipment measures both parameters at the same time, making it a valuable tool for characterising the physical and chemical properties of materials under controlled atmosphere conditions.

      TGA/DSC equipment with 34-position autosampler. Oven up to 1100 °C. High resolution balance. Possibility of coupling with FT-IR spectrometry equipment for the analysis of decomposition products.

    • Some of the phenomena and thermal processes that can be determined by TGA/DSC are:

      • Adsorption and desorption of gases: fusions.
      • Crystallisations.
      • Process kinetics: polymorphisms.
      • Sublimation, evaporation and vaporisation: phase diagrams.
      • Thermal stability: Glass transitions.
      • Oxidation reactions: kinetics.
      • Identification by decomposition products: heat capacity.
      • Transition and reaction enthalpies
      • Pseudopolymorphisms
      • Determination of Curie temperatures.

    • Unidade de Análise Instrumental

      Edificio de Apoio á Investigación (CACTUS) Lugo