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Pure Appl. Chem., 2002, Vol. 74, No. 3, pp. 429-433

Generation of thermal plasmas in liquid-stabilized and hybrid dc-arc torches

Milan Hrabovský

Institute of Plasma Physics AS CR, Prague, Czech Republic

Abstract: The paper presents survey of principles and basic physical parameters of liquid and hybrid gas/liquid dc-arc plasma torches and discusses physical mechanisms that control plasma properties. Special attention is devoted to properties of generated plasma that are decisive for performance characteristics in plasma spraying. Characteristics of water and water-argon torches are compared with typical characteristics of commonly used gas torches.