Differential Thermal Analysis (DTA) is a technique used to measure the temperature difference between a sample and a reference material as they are heated or cooled. This method helps identify phase transitions, such as melting or crystallization, by monitoring changes in thermal properties. DTA is commonly used in materials science and chemistry to study the thermal behavior of substances. In a typical DTA experiment, both the sample and reference are subjected to the same temperature program. The resulting data can provide insights into the thermal stability and composition of materials, aiding in the development of products in industries like pharmaceuticals and ceramics.