The continuously increasing requirements of brake systems demand solutions which can hardly be realized with conventional materials. The most promising candidate materials for optimum solutions of various problems are fibre reinforced ceramics based on silificated carbon/carbons (CMC). They are resistant against corrosion and thermal shock and possess a low coefficient of thermal expansion (CTE). The setting of the properties is performed by a suitable preform. Currently, cloths, multi-axial fabric, short fibres and felts are applied - a clear trend to short fibres is obvious. Furthermore, the properties of CMC materials are significantly influenced by the manufacturing steps, by the applied precursor and additives as well as by the type of the final silification treatment. Coefficient of friction, wear, surface temperature of the discs and noise are always related to the friction partner. Pads made out of sintered metal are mainly prefered, as they already lead to good friction properties at low wear. Although the prices of presently available CMC materials are significantly lower than those of carbon/carbon materials applied for brakes, a further cost reduction is imperative for a broad use of these materials in automotive and industrial applications.


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    Title :

    Light weight brake materials for automotive and industrial applications


    Additional title:

    Leichtes Bremsenmaterial für automobile und industrielle Anwendungen


    Contributors:
    Henrich, M. (author) / Ebert, M. (author) / Scheibel, T. (author) / Weiss, R. (author)


    Publication date :

    2000


    Size :

    2 Seiten, 2 Bilder



    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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