ABSTRACT

This chapter presents the results or a successful attempt to show the relationship between the morphology and batch sieving behavior of three metal powders. Perhaps even more important, manufacturers of powders may avail themselves of such techniques to refine their products by removing the undesired morphic fractions from the sieved powder. In other words, once such curves are known for a particular powder, one may sieve the powder for a predetermined time to obtain particles of the desired morphology. An assortment of irregular shapes was also found to be present in the powder. The atomized powder contained particles more rounded in general form than those of the electrolytic powder, but not nearly spherical. Screening and sieving have long been the most common methods of separating particles according to size. It is now proposed that screening and sieving may be effectively used to classify particles on the basis of both their size and shape.