Mechanochemical synthesis of CaTiO3 from a CaO-TiO2 mixture and its HR-TEM observation

Guomin Mi, Yasukazu Murakami, Daisuke Shindo, Fumio Saito

    Research output: Contribution to journalConference articlepeer-review

    34 Citations (Scopus)


    Anatase (TiO2) is transformed into rutile via brookite within 1 h by room temperature grinding using a planetary ball mill. This polymorphic transformation of anatase leads to the mechanochemical synthesis of the crystalline CaTiO3 from the mixture with CaO easier than from the CaO and rutile mixture. The amount of CaTiO3 in the ground product increases with improving its crystallinity as the grinding progresses. They reach a 20-nm size by about 5 h of grinding, and the grain boundary and lattice fringe appear clearly as the grinding progresses. Copyright (C) 1999 Elsevier Science S.A.

    Original languageEnglish
    Pages (from-to)162-166
    Number of pages5
    JournalPowder Technology
    Issue number1-3
    Publication statusPublished - 1999 Nov 1
    EventProceedings of the 1998 9th European Symposium on Communication - Albi, France
    Duration: 1998 Sep 81998 Sep 10


    • Anatase
    • Calcium titanate
    • Dry grinding
    • Mechanochemical synthesis
    • Microstructure
    • Rutile

    ASJC Scopus subject areas

    • Chemical Engineering(all)

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