A general law for liquid metal-onto-ceramic wetting: An electrostatic approach

This work presents a model to explain such results. It considers as a basic tool the presence of an electrostatic field generated by the metal impurities-ceramic surface charge transfer. The addition of the corresponding electrostatic force to the Young-Dupré equilibrium equation modifies the equilibrium contact angle in ceramics-metals reactive wetting. The theoretical values are in excellent agreement with the reported values in the literature. Thus, charge transfer and the electrostatic effects associated to that transfer constitute a landmark for the comprehension of the equilibrium wetting angle in metal-ceramic systems.