What Is Particle Size, Powder, And Particle Size Distribution?
Particle size indicates how small (or big) a particle is. The unit is usually μm or nm. Mm could also be used for certain fields where the particles are relatively big. Diameter is usually used to describe particle size.
Powder is a pile of solid particles.
Particle size distribution is characterized as a percentage of the number of particles in a specific size range compared to the total number of the particles. Particle size distribution can be expressed in many ways based on different criteria, including number, diameter, area, volume, and mass. Particle size distribution based on volume is mostly used.