Figure 12.

Relation between CHF and surface characteristics. (a) CHF of pure water vs. contact angle of a water droplet on nanoparticle-deposited surfaces. SEM pictures (b) and maximum capillary wicking height of pure water (c) for surfaces boiled in 10^-3% (A) and 10^-1% (B) water-TiO₂ nanofluids, with the same contact angles of ~20° [60].