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Influence of additive composition on microstructure of sialons

  • G.Z. Cao
  • , R. Metselaar
  • , G. Ziegler

    Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

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    Abstract

    The relationship between composition and microstructure of a'-sialons was studied. The typical microstructure of a' -sialon ceramics consists of a crystalline phase of sialons and a small fraction of amorphous phase at grain boundaries. The addition of La2O3 to the starting mixtures promotes the incorporation of yttrium ions into the crystal lattice and also results in the formation of many crystal defects in the a' grains. This result suggests that a small amount of La3+ ions, together with yttrium cations, can enter the lattice of a' -sialons.
    Original languageEnglish
    Title of host publicationEuro-Ceramics 2 : Proceedings of the 2nd European Ceramic Society Conference, 11-14 sep. 1991, Augsburg
    EditorsG. Ziegler, H. Hausner
    Place of PublicationAugsburg
    PublisherDeutsche Keramische Gesellschaft
    Pages883-887
    ISBN (Print)3-925543-11-2
    Publication statusPublished - 1991

    Publication series

    NameEuro-Ceramics II
    Volume2

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