Figure 6: TiC0.7N0.3 NPs coating for effective control of coalescence.
(a) SEM image of a Bi droplet cluster. (b) Magnified view of the area in the box in a. (c) Schematic of the capillary pressure in the liquid film between two colliding nanoparticle-coated droplets. The nanoparticles raise the pressure to break the thin liquid film between two colliding droplets to against coalescence. (d) EDS of the interface region between two Bi droplets. The high intensity of the Ti and Al peaks indicates that two Bi droplets are separated by TiC0.7N0.3 NP stabilized Al thin film. Scale bars, 10 μm in a and 500 nm in b.
