Zyttrite-doped material outperforms MgO-doped material above 1,200 degrees C. New ceramic material produced by addition of 10 weight percent zyttrite (yttria-stabilized zirconia) to (silicon nitride) offers significantly-improved high-temperature properties (those of MgO-doped Si3N4 ceramic). Work also showed that controlled Si3N4 powder with 10 weight percent zyttrite, significant improvement in room-temperature strength achieved. Variety of high-temperature structural applications are silicon nitride and silicon carbide. Potential for use in aircraft and automobile engines and in electric-power generating systems. Improved properties strongly suggest that the 10-weight percent zyttrite/Si3N4 material has strong potential for high-temperature applications.


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    Titel :

    Si3N4-Based Ceramic With Greater Hot Strength


    Beteiligte:
    Dutta, S. (Autor:in) / Buzek, B. (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    01.05.1986



    Medientyp :

    Sonstige


    Format :

    Keine Angabe


    Sprache :

    Englisch


    Schlagwörter :


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    Grinding Si3N4 Powder In Si3N4 Equipment

    Herbell, Thomas P. / Freedman, Marc R. / Kiser, James D. | NTRS | 1989


    Effect of intergranular microstructure on properties of Si3N4 based composite ceramic materials

    Knutson-Wedel,E.M. / Falk,L.K. / Ekstroem,T. et al. | Kraftfahrwesen | 1991