Differential thermal analyzer is an important thermal analysis instrument, widely used in various fields, such as material science, chemistry, physics, biology and so on. It can measure the thermal effect of the sample at different temperatures, providing researchers with information about the thermal properties and changing behavior of the sample at different temperatures. This paper will introduce the basic principle, characteristics and practical application of the differential thermal analyzer.
The differential thermal analyzer is mainly composed of heating furnace, thermocouple, measuring system and recorder. The furnace is used to heat the sample and the reference, and the thermocouple is used to measure the temperature difference between the sample and the reference. The measuring system converts the temperature difference into an electrical signal, which is recorded by a recorder. By analyzing the relationship between temperature difference and temperature, the thermal properties and change behavior of the sample can be obtained.
The main features of the differential thermal analyzer include:
High sensitivity: The differential thermal analyzer is capable of measuring small temperature differences and is therefore very sensitive to the thermal properties and changing behavior of the sample.
Wide temperature range: The differential thermal analyzer can measure the thermal properties and changing behavior of different materials in the low to high temperature range.
Widely used: Differential thermal analyzer is widely used in various fields, such as material science, chemistry, physics, biology and so on.
In practical applications, the DTA is mainly used to study the melting, oxidation, decomposition, adsorption, catalysis and other phenomena of samples. For example, in materials science, the DTA can be used to study the phase change temperature, thermal stability, thermal expansion coefficient of materials, etc. In chemistry, the differential thermal analyzer can be used to study the thermal effect of chemical reactions, chemical adsorption, etc. In physics, the differential thermal analyzer can be used to study the thermal properties and changing behavior of substances.
In short, the differential thermal analyzer is an important thermal analysis instrument with high sensitivity, wide temperature range and wide application. It can measure the thermal effect of the sample at different temperatures, providing researchers with information about the thermal properties and changing behavior of the sample at different temperatures. In practical applications, the differential thermal analyzer has become an indispensable tool in materials science, chemistry, physics, biology and other fields.