Triboplasma - its generation and application for surface modification

A triboplasma is a gas discharge induced by tribological stimulation. A triboplasma induced by tribo-electrification has been experimentally detected around a sliding contact. The detailed mechanism in tribo-electrification is unknown, but empirical "tribo-electric series" and Coehns law can be helpful for predicting the ordering of the tendency for charge acquisition in rubbing. Like other discharge plasmas, a triboplasma can be useful for surface modification such as adhesion improvement of certain surfaces. The method is attractive, since the generation of a triboplasma is simple, its treatment effect is expected to be similar to that of normal process plasmas, and simultaneous mechanical rubbing can enhance the treatment effect.