Influence of the Dispersants in Gelcasting of Nanosized TiN

摘要

The gelcasting process for shaping of plasma syn- thesized nanosized TiN with regard to the disper- sion behaviour and the resultant microstructures has been investigated. The dispersion behaviour of the powder and rheology of the slurries under the infl- uence of three different dispersants have been stud- ied as a function of pH. Solid content of the slurries was up to 22 vol/100. The isoelectric points as mea- sured by the streaming potential method were found to be at p H of 3?7 and lower.