Extruded cordierite honeycomb ceramics were developed as substrates for automotive exhaust catalysts. The honeycomb structure is made possible by a unique extrusion die design. The cordierite crystallites in the fired ceramic are preferentially oriented with the result that this structure has a markedly lower-than-average thermal expansion. Orientation results from the orientation of platy raw materials during extrusion. Chemical purity, stoichiometry, and firing rate are also shown to affect thermal expansion.


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    Title :

    Thermal expansion of extruded cordierite ceramics


    Additional title:

    Thermische Ausdehnung extrudierter Kordierit-Keramiken


    Contributors:
    Lachmann, I.M. (author) / Bagley, R.D. (author) / Lewis, R.M. (author)

    Published in:

    Publication date :

    1981


    Size :

    4 Seiten



    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English




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