Determine the density to evaluate quality, flowability and manufacturability of your powder
Density is the mass of a quantity of matter divided by the volume of that same quantity and usually has the units of grams per cubic centimeter (g/cm3). Accurately measured density reveals much about your material.
The density of a solid particle can assume different values depending on the method used to measure the volume of the particle. It is useful to distinguish three levels of expression of density:
- The crystal density which only includes the solid fraction of the material; the crystal density is also called true density
- The particle density also includes the volume due to intra particulate pores and this density can be determined by helium pycnometry
- The bulk density further includes the inter particulate void volume formed in the powder bed; the bulk density is also called apparent density.