Effect of zirconium substitution on the phase formation and microstructure of BaCeO3

N. Osman, I. A. Talib, H. A. Hamid

    Research output: Contribution to journalArticle

    5 Citations (Scopus)

    Abstract

    Polycrystalline compounds of Ba(Ce1-x Zrx) 0.95Yb0.05O2.975 (020≤x≤0.40) were prepared by the conventional solid state reaction method. All the samples exhibited the orthorhombic structure of BaCeO3. The particle size and morphology of the powdered samples were found to change gradually with Zr content. The sample with x=0.40 showed more agglomerates of about 10.0 pm in size, and the particles constituting the agglomerates were smaller than 1.0 pm. For the polished and etched pelleted samples, only the x=020 sample showed clear grain shapes with sizes in the range of 1.0 to 3.0 μm. By increasing the Zr content to more than 20 mol%, the grain sizes became less pronounced and smaller. The deficiency of Ba that caused the formation of a Ce, Zr and Yb-rich sample was detected by energy dispersive X-ray measurement. Ba deficiency was attributed to the loss of BaO during the calcination and sintering processes.

    Original languageEnglish
    Pages (from-to)479-484
    Number of pages6
    JournalSains Malaysiana
    Volume39
    Issue number3
    Publication statusPublished - Jun 2010

    Fingerprint

    Solid state reactions
    Calcination
    Substitution reactions
    Sintering
    Particle size
    X rays
    Microstructure

    Keywords

    • Cerate-zirconate
    • Microstructure
    • Oxides ceramic
    • Phase formation

    ASJC Scopus subject areas

    • General

    Cite this

    Effect of zirconium substitution on the phase formation and microstructure of BaCeO3 . / Osman, N.; Talib, I. A.; Hamid, H. A.

    In: Sains Malaysiana, Vol. 39, No. 3, 06.2010, p. 479-484.

    Research output: Contribution to journalArticle

    Osman, N, Talib, IA & Hamid, HA 2010, 'Effect of zirconium substitution on the phase formation and microstructure of BaCeO3 ', Sains Malaysiana, vol. 39, no. 3, pp. 479-484.
    Osman, N. ; Talib, I. A. ; Hamid, H. A. / Effect of zirconium substitution on the phase formation and microstructure of BaCeO3 In: Sains Malaysiana. 2010 ; Vol. 39, No. 3. pp. 479-484.
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