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    Crystal growth mechanisms of the (010) face of alpha-lactose monohydrate crystals

    118832_Crystal%20growth%20mechanisms%20of%20the-monohydrate%20crystals.pdf (85.59Kb)
    Access Status
    Open access
    Authors
    Dincer, Tuna
    Ogden, Mark
    Parkinson, Gordon
    Date
    2009
    Type
    Journal Article
    
    Metadata
    Show full item record
    Citation
    Dincer, Tuna and Ogden, Mark and Parkinson, Gordon. 2009. Crystal growth mechanisms of the (010) face of alpha-lactose monohydrate crystals. Journal of Crystal Growth. 311 (8): pp. 2427-2432.
    Source Title
    Journal of Crystal Growth
    DOI
    10.1016/j.jcrysgro.2009.02.030
    ISSN
    00220248
    Faculty
    School of Science
    Science and Engineering
    School
    Nanochemistry Research Institute (Research Institute)
    Remarks

    The link to the journal's home page is: http://www.elsevier.com/wps/find/journaldescription.cws_home/505670/description#description

    Crown copyright © 2009 Published by Elsevier B.V.

    URI
    http://hdl.handle.net/20.500.11937/40370
    Collection
    • Curtin Research Publications
    Abstract

    The growth rates of the (010) face of a-lactose monohydrate crystals were measured at 30, 40 and 50 1C in the relative supersaturation range 0.55?2.33 in aqueous solutions. The mechanisms of growth were investigated. Spiral growth was found to be the mechanism of growth up to a critical relativesupersaturation (s-1)crit=1.9 at 30 1C. Above the critical relative supersaturation, the crystal growthmechanisms were predicted to change. All growth models fit equally well to the growth rates. No twodimensional nucleation was observed above critical supersaturation by AFM. On the other handincreased step height and roughness on the edges of steps were observed. It was concluded that thegrowth mechanism of the (010) face of a-lactose monohydrate crystal is spiral growth. A parabolicrelationship was obtained below critical supersaturation followed by a linear relationship with relativesupersaturation.

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