| AVS 55th International Symposium & Exhibition | |
| Advanced Surface Engineering | Wednesday Sessions |
| Session SE-WeM |
| Session: | Atmospheric Pressure Treatments and Hard and Nanocomposite Coatings |
| Presenter: | L. Bárdos, Uppsala University, Sweden |
| Authors: | H. Baránková, Uppsala University, Sweden L. Bárdos, Uppsala University, Sweden |
| Correspondent: | Click to Email |
The hollow cathode cold atmospheric plasma sources, similarly as hollow cathode plasma sources at the moderate and low pressures, exhibit the Hollow Cathode Effect (HCE). The atmospheric pressure, however, requires reduction of dimensions, so that a typical structure inside the hollow cathode, i.e. the space charge sheath - common negative glow - space charge sheath, is preserved. The experimental results on the hollow cathode generation, using a special construction with a tunable wall separation, are presented. The influence of the gas and the type of generation on the optimum size is investigated. The experimental results are supported by the hollow cathode model. The applications of the hollow cathodes operating at the atmospheric pressure are given.