Dielectric barrier discharge structure

An excimer lamp has dual quartz-tube structure, where a metal electrode is set at the inner side of the inner tube, and a mesh-type metal electrode is placed at the outside of the outer tube as shown in Fig. 5. When we apply ac high voltage between two electrodes, the dielectric barrier discharge ignites between two dielectric materials, and reaches an excimer state instantaneously by the excitation of atoms of a filling gas. Then the excimer light is emitted by the... 

Figure 6-36. Schematic of ozone generator in planar configuration (A-A) cross section of the device is shown to the right (1) ceramic dielectric (2) aluminum structure for effective cooling of the dielectric barrier discharge (3) high-voltage steel electrode (4) low-voltage steel electrode (5) discharge gap (6) glass separators.

De Geyter, N., Morent, R., Leys, C., 2006. Penetration of a dielectric barrier discharge plasma into textile structures at medium pressure. Plasma Sour. Sci. Technol. 15,78-84. 

Essentially, physical methods are employed on natural fiber during processing in order to separate natural fiber bundles into individual filaments and also to modify the surface structure of the fibers so as to improve the use of natural fibers in composites. Physical methods can be divided into two categories viz (1) steam explosion and thermomechanical processes and (2) plasma, dielectric barrier techniques, radiation modification, ultrasonic treatment, and corona discharge. In an effort to impart and improve reactivity, these physical treatments have been used to modify thermoplastic polymeric films like polyethylene and polypropylene and thermosets, such as epoxy. 

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