Fig. 9: Estimation of the effect of silica coat thickness on the number of charges and particle-particle interactions in titania particles.
From: Clustering of charged colloidal particles in the microgravity environment of space

a Number of particle charges calculated assuming various SiO2 shell layer thicknesses. b Interaction potential between TiO2-SiO2 core-shell particles (Shell thickness 20 nm, Cs = 200 µM). c Maximum values of the interaction potential between TiO2-SiO2 core-shell particles (From top, shell thickness = 50, 40, 30, 20, 10, and 0 nm).