Determination of the anisotropy of crystal growth rate from time dependent crystal growth forms

A mathematical model was developed which allows, using a special computer program, the reconstruction of a Wulff rate of growth R versus orientation (θ) plot from pictures of a developing crystal growth form, measured at constant supersaturation and at fixed time intervals. The method was applied to...

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Bibliographic Details
Published in:Journal of crystal growth 1988-10, Vol.92 (3), p.671-673
Main Authors: Cherepanova, T.A., Vaivods, A.V., Bennema, P., Elwenspoek, M., Boerhof, J.
Format: Article
Language:English
Subjects:
Cross-disciplinary physics: materials science
rheology
Exact sciences and technology
Materials science
Methods of crystal growth
physics of crystal growth
Physics
Theory and models of crystal growth
physics of crystal growth, crystal morphology and orientation
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Summary:A mathematical model was developed which allows, using a special computer program, the reconstruction of a Wulff rate of growth R versus orientation (θ) plot from pictures of a developing crystal growth form, measured at constant supersaturation and at fixed time intervals. The method was applied to measured growth forms of a crystal of thionaphthene growing from a melt. Growth anisotropy was very pronounced. However, valeys instead of cusps occur in the R (θ) plot, indicating that all orientations { hkl} are growing above the roughening temperature in agreement with previous results.
ISSN:0022-0248
1873-5002
DOI:10.1016/0022-0248(88)90053-X