Answer :

Solution :

Particle size usually is controlled by screening that is, by passing the metal powder through screens of various mesh sizes in addition to screening several other methods are available for particle size analysis, which are:

1. Laser scattering from a laser illuminates a sample consisting of particles suspended in a liquid medium. The particles cause the light to be scattered, and a detector then digitizes the signals and computes the particle-size distribution.

2. Sedimentation, which involves measuring the rate at which particles settle in a fluid.

3. Microscopic analysis, which may include the use of transmission and scanning electron microscopy.