Differential Thermal Gravimetric Analysis

Thermal Analysis is a branch of science that deals with the changes in the property of the material. When heated, melted, or decomposed, the material will change its state. There are many methods on which it is done, and when it is done on heating, it is known as Thermogravimetric Analysis (TG). The process is go through in a controlled atmosphere. The function of mass change used in TG is temperature or time. The technique is useful for decomposition, dehydration, desorption, and oxidation. There are multiple applications of TGA. It also measures the thermal stability of the material along with determining the volatile components. It is subject to under heating under temperature heating and a predetermined heating rate.

Out of multiple thermal methods of analysis, the most widely used is Differential Thermal Analysis (DTA). In this technique, the temperature of the material is compared with inert reference material. It is carried out in an atmosphere of programmed change of temperature that means they are made to undergo an identical thermal cycle. When there is change in the energy (either chemical/physical phenomenon), the difference in the temperature of both the materials identifies the transition. Also, DTA experiments are done at a specific temperature, but the user is not known what’s happening.

Interpreting The Results
To reach the results in the best way, other methods are also needed. Mostly X-ray diffraction, spectroscopy, composition analysis, microscopic investigation, electron probe microanalysis, etc.