Abstract
The dispersion behaviour of two commercial SiC whisker samples and one SiC powder has been investigated in aqueous and non-aqueous media using equilibrium sediment density measurements. In water, the pH range 9–11.0 was identified as being optimum for the dispersion of the SiC materials. The colloidal stability of aqueous SiC suspensions was broadly consistent with their silica-like surface chemistry, although the SiC whiskers appeared to be more basic than the powder.
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