Scaling behaviour of the rheology of aggregate networks formed from colloidal particles

Colloidal Processing of Ceramics

“…36,41 This has been confirmed by Zukoski and co-workers 92,103 for flocculated ceramic suspensions. Alternately, Buscall et al 36 have shown that flocculated systems of submicrometer spheres displayed a P y () that exhibits the following power-law dependence: (25) where n ϭ 4 Ϯ 0.5. Because the particle network strengthens dramatically with increased volume fraction and degree of interparticle attraction, it is difficult to completely consolidate flocculated systems under modest applied loads (Յ1 MPa), as shown in Fig.…”

An Approach to Understanding Cohesive Slurry Settling, Mobilization, and Hydrogen Gas Retention in Pulsed Jet Mixed Vessels

“…Channell and Zukoski (1997) achieved an equivalent result in alumina suspensions. Meetan (1994) reported a ratio of approximately 100 for the silica of Buscall et al (1988), and found 11.1 for his bentonite analysis. It is suggested that the variability of the results (approximately 10 to 100) is caused by the properties (microstructure, particle interactions, particle size, etc.)…”

An elasto-visco-plastic model of cell aggregates

“…In the former case, the yield stress is expected to be very low or null. In the second case, according to the theory of the dynamics of colloidal particles and flocculated suspensions, the yield stress should increase with the second or the third power of the volume ratio [6,38,7]. Iordan et al [20] measured τ (φ) to be proportional to φ 8.4 .…”