What Are The Methods for Thermal Analysis?

Published: Sunday, 08 December 2019

Thermal analysis is a scientific study of material properties under the changes of temperature or time. The following methods are those common thermal analysis and instruments. 

Differential Scanning Calorimetry (DSC)

DSC is used to measure the energy absorbed or released on the sample, as a function of time or function of the temperature. DSC is useful to make the measurements for melting points, heats of reaction, glass transition, and heat capacity

Differential Thermal Analysis (DTA)

DTA measures the temperature difference between the sample and the reference as the function of time temperature. This method is similar to DSC, but not quantify the amount of energy. It is usually working under high temperature. This method is used in the measurement of glass transitions, phase changes, and melting points can be measured.. 

Thermogravimetric Analysis (TGA)

TGA measures the weight changes of the as a function of time or temperature. This method is effective in determing decomposition, oxidation or loss of solvent or water. 

Thermomechanical Analysis (TMA)

TMA measures the  dimensional changes on a sample as function of temperature. The various probes, were used to measure the properties of expansion, contraction, penetration, softening of the sample as well as glass transition. 

Simultaneous Thermal Analysis (STA)

STA is the method in which combines the DSC / DTA and TGA. It can be a singel instrument or a experiment. 

Evolved Gas Analysis (EGA) 

EGA is a method used to study the gas evolved from a heated sample that undergoes decomposition or desorption. A Mass Spectrometer or Fourier transform infrared spectroscopy (FTIR) are often combined in this thermal analysis method.