Mechanochemical reactions in the system FeTiO3-Si

Ying Chen, J. S. Williams

    Research output: Contribution to journalArticlepeer-review

    Abstract

    Mechanochemical reactions in the system FeTiO3-Si have been investigated as functions of the powder composition and milling conditions, using x-ray diffraction and thermal analyses. Reduction reactions of FeTiO3 by Si were observed during room-temperature milling with the formation of α-Fe, amorphous SiOx, nanocrystalline TiO2, or intermetallic compounds, depending on the Si content. The mechanochemical reaction process consists of a mechanical activation stage and a reaction stage. Higher milling intensity leads to a shorter activation step and a higher reaction rate.

    Original languageEnglish
    Pages (from-to)3499-3503
    Number of pages5
    JournalJournal of Materials Research
    Volume13
    Issue number12
    DOIs
    Publication statusPublished - Dec 1998

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