Moving atmospheric microwave plasma for surface and volume treatment

Ehlbeck, Jörg; Ohl, A.; Maass, Martin; Krohmann, Udo; Neumann, Torsten

doi:10.1016/s0257-8972(03)00652-2

Cited by 32 publications

(28 citation statements)

References 3 publications

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“…Another important area of applications of these kind of plasma sources is related to the energy supply. Another recently developed atmospheric pressure microwave plasma source was developed at the INP in Greifswald [17,18]. One of them is the mid-and long-time energy storage solved by the transformation of electrical energy into chemical energy.…”

Section: Introductionmentioning

confidence: 99%

Microwave Plasmas at Atmospheric Pressure

Leins

Kopecki

Gaiser

et al. 2013

Contrib. Plasma Phys.

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Microwave plasmas at atmospheric pressure are used for surface treatments like for example cleaning, sterilization or decontamination purposes, for a pre-treatment to increase the adhesion of lacquer, paint, or glue, and for the deposition of different kind of layers and coatings. Micro plasma jets can also be applied for biomedical applications and for treatment of small and complex geometries like for example the inside of capillaries. Larger plasma torches which exhibit higher gas temperatures can also be used for chemical syntheses like waste gas decomposition, methane pyrolysis, or carbon dioxide dissociation and for plasma spraying purposes. In the present publication an overview on the development and the investigation of the operating principle of two atmospheric pressure microwave plasma torches at frequencies of 2.45 GHz and 915 MHz will be presented. The plasma sources are based on a cylindrical resonator combined with coaxial structures. To explain how these plasma sources work, simulations of the electric field distribution will be discussed. Furthermore, some physical characteristics of an air and an Ar/H2 atmospheric plasma like gas temperatures, excitation temperatures and densities as well as the heating of the plasma by the microwave will be investigated.

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Section: Introductionmentioning

confidence: 99%

Microwave Plasmas at Atmospheric Pressure

Leins

Kopecki

Gaiser

et al. 2013

Contrib. Plasma Phys.

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“…The surface modification process depends on the production of electrons, ions, free radicals, and other molecular species inside the plasma flame [138,139]. This is due to the expected higher reaction rates, lower investment costs, and lower operational costs of normal pressure processes.…”

Section: -16mentioning

confidence: 99%

Solid-Liquid Interface

Park¹,

Seo²

2011

Interface Science and Composites

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“…The repetitive and stable ignition can be achieved by inserting a resonant structure into the microwave field [17]. This concept was successfully realized in air ambient [18,19] together with the negative effect of a plasma propagation towards the magnetron within the waveguide.…”

Section: Plasma Source Developmentmentioning

confidence: 99%