New materials for electrical contacts have been developed recently, based on AgFeO(x), AgFe, AgZnO, and doped AgSnO2. The work described here aims at evaluating the material transfer characteristics, and the contact resistance behavior, of these materials under break arc in automobile applications. A comparison is made between these new materials and four reference materials: Ag, AgCdO, AgSnO2, and AgNi. Three of the new materials appear very promising: AgZnO, AgFeO(x), and AgSnO2:Bi2O3,CuO. These combine the good transfer performance of AgCdO in inductive load, i.e. in a long cathodic arc, with that of AgSnO2 in resistive load, i.e. in a short anodic arc. For all materials, the contact resistance is much higher in the inductive load (7 m-Ohm) than in the resistive load (1 m-Ohm). An explanation of the different behaviors of these materials is attempted by mean of metallographic analysis.


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    Titel :

    A study of new contacts materials under break arc in automobile area


    Weitere Titelangaben:

    Eine Untersuchung neuer Kontaktwerkstoffe unter einem Ausschaltllichtogen in Autoelektronikbereich


    Beteiligte:
    Morin, L. (Autor:in) / Jemaa, N.B. (Autor:in) / Jeannot, D. (Autor:in) / Pinard, J. (Autor:in) / Nedelec, L. (Autor:in) / Mercier, J.P. (Autor:in)


    Erscheinungsdatum :

    1998


    Format / Umfang :

    8 Seiten, 12 Bilder, 3 Tabellen, 18 Quellen



    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch






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