Packing and Sintering Relations for Binary Powders
Mixtures of coarse and fine powders are commonly used for processing refractory bodies. Compared with uniform fine powders, mixtures have higher green densities and less shrinkage when fired. The presence of coarse particles can provide a control for achieving fired bodies with a specific level of porosity. As a filler, the coarse particles may also reduce the cost of the raw material. A major disadvantage of mixtures is the limited strength of the fired body because of the large grains in the microstructure.
KeywordsFine Particle Binary Mixture Specific Volume Coarse Particle Partial Specific Volume
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