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    Rod-shaped barium sulfate particles from a completely inorganic system

    165101_165101.pdf (115.6Kb)
    Access Status
    Open access
    Authors
    Radomirovic, Tomoko
    Ogden, Mark
    Jones, Franca
    Date
    2011
    Type
    Journal Article
    
    Metadata
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    Citation
    Radomirovic, Tomoko and Ogden, Mark and Jones, Franca. 2011. Rod-shaped barium sulfate particles from a completely inorganic system. Journal of Crystal Growth. 321 (1): pp. 78-84.
    Source Title
    Journal of Crystal Growth
    DOI
    10.1016/j.jcrysgro.2011.02.022
    ISSN
    00220248
    School
    Nanochemistry Research Institute (Research Institute)
    Remarks

    NOTICE: this is the author’s version of a work that was accepted for publication in Journal of Crystal Growth. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Journal of Crystal Growth, 321, 1, 2011. DOI: 10.1016/j.jcrysgro.2011.02.022

    URI
    http://hdl.handle.net/20.500.11937/28614
    Collection
    • Curtin Research Publications
    Abstract

    Rod-shaped barium sulfate particles can be formed from purely inorganic systems at 75 1C and theseparticles are single crystals elongated in the c-axis. This c-axis growth promotion relative to the othercrystal faces is absent when the cation impurities are absent suggesting a specific interaction of thecations with the growing crystal. Attempts have been made to determine the cause of this c-axisgrowth promotion, but no one mechanism appears to adequately explain this effect and it may be dueto a combination of different impacts. The same cations do not induce rod-shaped particles at 25 1C,thus suggesting an important role of kinetics in the crystallization of these particles. Finally, previousreports suggesting that the formation of rod-like particles is due to the presence of an organic additivemay be incorrect as sufficient sodium ions may have been present to give these particles even in their absence.

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