Evaluation of Mechanisms of Ice Adhesion on Power Network Equipment

The objective of this study is to review the mechanisms of ice adhesion to cables and insulators, with a special emphasis on aluminum and ceramic materials, as these devices are made from these materials. This review shows that the physico-chemical interactions and mechanical interlock contribute to the mechanisms of ice adhesion to surfaces. The physico-chemical mechanisms of ice adhesion to surfaces are classified into three main categories: dipole-dipole or ion-dipole interactions; hydrogen bond; and van der Waals interactions. The interfacial adhesion strength of ice/metals or ice/ceramic insulators is greater than the strength of ice. This indicates that the strength between ice and the material surfaces is greater than hydrogen bonds of ice itself. The mechanical mechanism involves the penetration of liquid water into cavities and pores on the surface of the substrate and expansion of ice during solidification, resulting in an anchor effect and the establishment of a strong bond between ice and surface.