Preparation, Inhibition and Destruction of Dispersions

Colloidal dispersions can be formed either by nucleation with subsequent growth or by subdivision processes [12,13,16,25,152,426], The nucleation process requires a phase change, such as condensation of vapour to yield liquid or solid, or precipitation from solution. Tadros reviews nucleation/condensation processes and their control [236], Some mechanisms of such colloid formation are listed in Table 7.1. The subdivision process refers to the comminution of particles, droplets, or bubbles into smaller sizes. This process requires the application of shear. Some of the kinds of devices used are listed in Table 7.2 [228]. 

Vapour — liquid — solid Oxides, carbides via high intensity arc metallic powders via  

Vapour + vapour — solid Chemical vapour deposition, radio frequency-induced plasma,  

Liquid — solid Ferrites, titanates, aluminates, zirconates, molybdates via  

Emulsions, Foams, Suspensions, and Aerosols Microscience and Applications, 

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