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Thermal analysis




Thermogravimetry (TG/DTA and TG/DC)

The change of mass in relation to the temperature and time is measured with this method. The weight variation (increase and decrease) at a given temperature can be specific to a sample. This way, conclusions can be drawn about the composition of the sample.

Equipment used

  • Temperature range: -100 up to 1600°C
  • Scale sensitivity: <0,003mg


Differential thermal analysis (DTA)

Differential thermal analysis (DTA) is a thermal process which aids in the characterization of materials.

With DTA, the temperatures of the sample are measured against a reference sample. The reference sample does not allow for a phase transition to be observed within this measurement range. The difference between the temperature of the sample and the reference sample at a constant energy input is measured. Differences exist only during phase transitions. Thus, conclusions can be drawn about the composition of the sample.

An area of application for DTA is the characterization of polymers.

Equipment used

  • Temperature range: room temperature up to 1600°C


Differential Scanning Calorimetry (DSC)

With DSC, the differential heat flow is measured between a sample and a reference sample (air). This way exothermic or endothermic processes, or phase transitions like melting or vaporization, can be characterized. The caloric parameters are used to characterize the sample.

Equipment used

  • Temperature range: -170 up to 530°C
  • Sensitivity: 0,003 mV/mW