METHOD AND EQUIPMENT FOR CHARACTERIZING THE SURFACE OF SOLID MATERIALS

摘要

The aim of the invention is to improve the surface characterization of solid materials, facilitating the implementation thereof, while producing reliable and accurate results. The method of the invention comprises the following steps: obtaining a material (M) to be characterized, in powder form, and a gas mixture (G) containing a probe molecule (S) that can interact with the material; performing gas percolation through the material, by flowing the gas mixture into the free spaces between the grains of the material, while leaving said grains in contact with one another during the gas percolation through the material (M); measuring a radiative heat flux (F) emitted by the material; and at least one surface characteristic relating to the material (M) is deduced from the radiative heat flux (F) measurements.