Material for electrodes of low temperature plasma generators

Patent · Tue Dec 09 00:00:00 EST 2008

OSTI ID:958720

Caplan, Malcolm ^[1]; Vinogradov, Sergel Evge'evich ^[2]; Ribin, Valeri Vasil'evich ^[2]; Shekalov, Valentin Ivanovich ^[2]; Rutberg, Philip Grigor'evich ^[2]; Safronov, Alexi Anatol'evich ^[2]

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1. Fremont, CA
2. St. Peterburg, RU

Material for electrodes of low temperature plasma generators. The material contains a porous metal matrix impregnated with a material emitting electrons. The material uses a mixture of copper and iron powders as a porous metal matrix and a Group IIIB metal component such as Y.sub.2O.sub.3 is used as a material emitting electrons at, for example, the proportion of the components, mass %: iron: 3-30; Y.sub.2O.sub.3:0.05-1; copper: the remainder. Copper provides a high level of heat conduction and electric conductance, iron decreases intensity of copper evaporation in the process of plasma creation providing increased strength and lifetime, Y.sub.2O.sub.3 provides decreasing of electronic work function and stability of arc burning. The material can be used for producing the electrodes of low temperature AC plasma generators used for destruction of liquid organic wastes, medical wastes, and municipal wastes as well as for decontamination of low level radioactive waste, the destruction of chemical weapons, warfare toxic agents, etc.

• Research Organization: Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: W-7405-ENG-48
• Assignee: Lawrence Livermore National Security, LLC (Livermore, CA)
• Patent Number(s): 7,462,089
• Application Number: 11/818,625
• OSTI ID: 958720
• Country of Publication: United States
• Language: English