Solid state thermoconductimetry

Electrical thermoconductivity is the evolution of a material's electrical conductivity as a function of temperature, in the presence or absence of physico-chemical transformations.

The electrical resistivityρ of a material, which is the inverse of conductivity, is a physical property of that material. It can be used to identify a material and define its state of purity under given conditions. Any physico-chemical transformation leads to a greater or lesser variation in this specific parameter. A large number of physico-chemical transformations or transitions can therefore be identified or monitored by measuring electrical resistivity. If this transformation is linked to a change in temperature, electrical conductivity measurements are the subject of thermoconductimetry. The technique involves monitoring changes in the electrical resistivity of a sample subjected to a temperature change. This is a particularly interesting thermal analysis technique, as it is easy to use in a wide range of applications, can be combined with other techniques and provides a wealth of information on the material under study.