Determination of specific surface area of metal powders is an important parameter in the field of powder metallurgy. In this note, we demonstrate the use of Brunauer-Emmett-Teller (BET) technique to measure another critical metal powder property: specific surface area (SSA).
Powder metallurgy is a field of study well acquainted with particle characterization. The size distribution and shape of the powder metal particles influences the physical properties of the parts created.
In this note, a series of metal samples with varying amounts of impurities were prepared gravimetrically and the resulting size distributions measured to illustrate how a high speed, dual camera system can be used to find small amounts of large particle impurities.