METHOD FOR DETERMINING WETTABILITY OF POWDER MATERIALS Russian patent published in 2021 - IPC G01N13/00 

FIELD: material engineering.

SUBSTANCE: invention relates to the field of studying the characteristics of powder materials, in particular, determining their wettability. The method for determining the wettability of powder materials includes finding the edge angle of a liquid drop placed on a compressed powder briquette, while the powder material is pressed into a briquette with a minimum width of at least a multiple of twice the diameter of the liquid drop to a relative briquette density of at least 0.92, one or more drops of one or more liquids are placed on the end surface of the briquette from a height of (h) 0.005-0.01 m, the edge angle is measured by analyzing sequential images of photography performed at a frequency of 10 frames per second, the edge angle (θ_c) is measured in the frame obtained one second after the drop touches the briquette surface.

EFFECT: possibility to measure the wettability of powder materials by liquid-phase components, taking into account their viscosity with the same surface roughness and the structure of the porosity of the briquette, as well as carrying out measurements for several types of liquids under the same conditions.

4 cl, 3 dwg, 1 tbl