The percentage of a material powder whose absolute particles are smaller than 1 micron.
|Tests||Average Particle Size (Microns)|
|Tests||% < 10 microns|
Utlimate particles of ceramic materials are finer than can be measured even on a 325 mesh screen. These particles are the key players in the physical presence of the material.
Tests conducted to determine particle populations, sizes, shapes, densities, surface areas, etc.