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Dendritic Growth of Hard-Sphere CrystalsRecent observations of the disorder-order transition for colloidal hard spheres under microgravity revealed dendritic crystallites roughly 1-2 mm in size for samples in the coexistence region of the phase diagram. Order-of-magnitude estimates rationalize the absence of large or dendritic crystals under normal gravity and their stability to annealing in microgravity. A linear stability analysis of the Ackerson and Schaetzel model for crystallization of hard spheres establishes the domain of instability for diffusion-limited growth at small supersaturations. The relationship between hard-sphere and molecular crystal growth is established and exploited to relate the predicted linear instability to the well-developed dendrites observed.
Document ID
19990009691
Document Type
Other
Authors
Russel, W. B.
(Princeton Univ. NJ United States)
Chaikin, P. M.
(Princeton Univ. NJ United States)
Zhu, Ji-Xiang
(Princeton Univ. NJ United States)
Meyer, W. V.
(NASA Lewis Research Center Cleveland, OH United States)
Rogers, R.
(NASA Lewis Research Center Cleveland, OH United States)
Date Acquired
August 19, 2013
Publication Date
August 1, 1998
Publication Information
Publication: Second United States Microgravity Laboratory: One Year Report
Volume: 2
Subject Category
Solid-State Physics
Funding Number(s)
CONTRACT_GRANT: NAG3-1762
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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