FUNCTIONAL PARTICLE SIZE DEFINITION
Functional Particle Size is the actual raw material size of the abrasive particles used in the manufacturine
of our products. This is the particle size that will do the polishing. This size can differ from the
particle sizes obtained in various particle size and distribution tests. In slurries, especially colloidal
alumina slurries, the abrasive particles can agglomerate
into larger particles and appear in particle size tests. (We use the Horiba LA-910
test to measure the particles in our slurry before shipment). When these slurries are used in processing, the
force applied by the polishing process will break the agglomerate particles up into their functional
particle sizes and it is these abrasive particles that will do the actual polishing.
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