Thermal conductivity is a very important parameter for various types of refractories, and is particularly crucial for insulating products. Its determination can be carried out in SSV with different measurement techniques depending on the type of material: for homogeneous products (e.g. technical ceramics) the “laser flash” technique can be used, while for other refractory materials the calorimeter method (ASTM C201) or the hot wire method (ISO 8894-1) are generally used.

In addition, by combining the measurement of thermal conductivity with sample density and specific heat measurements, it is also possible to obtain an estimate of the thermal diffusivity of the material.