Dipersion of Three Ceramic Powders in a Slurry. The Al_2O_3-AlN-SiC Mixture

摘要

This work presents, in a first stage the influence of aluminium nitride (AlN) addition to a well dis- persed α-alumina slurry, and in a second stage the influence of silicon carbide (SiC) phase to a Al_2O_3- AlN slurry. We have shown that the acid-basic Character of polymer dispersants and powder sur- Face play a major role in the adsorption phenomena Of dispersant onto a surface: an acidic polymer will Have a better affinity with a basis powder surface Than with an acidic surface and vice versa.