Heat transfer surfaces coated with fluorinated diamond-like carbon films to minimize scale formation

Scale formation on heat transfer surfaces has been recognised as a widespread problem in heat exchangers. In this paper, fluorinated DLC coatings with various surface free energies were prepared, and the effect of surface energy of the coatings on scale adhesion was investigated. The research in this paper demonstrated that the fluorinated DLC coatings with an optimal surface energy reduced CaSO4 deposit adhesion on heat transfer surfaces significantly.