Mixing

Mixing refers to the process of combining two or more solid materials to create a homogenous mixture. It involves blending or dispersing solid particles to form a uniform distribution.

There are three types of mixing mechanisms.

Diffusion mixing is a mechanism where small-scale random movement and distribution of particles occur within a powder mixture. It involves the separation and movement of particles to newly exposed surfaces under the influence of external forces like agitation or vibration.

Convection mixing involves large-scale random movement of powder particles. This mechanism ensures the powder particles are thoroughly mixed and uniformly distributed over a wide range, facilitating macroscopic homogeneity.

Shear mixing allows for the achievement of uniform distribution in localized regions and is often employed in processes such as compounding, granulation, or size reduction.