Three-dimensional reconstruction of xenon dendritesH. M. Singer and J. H. Bilgram
Laboratorium für Festkörperphysik, Eidgenössische Technische Hochschule ETH CH-8093 Zürich, Switzerland
received 24 May 2004; accepted in final form 27 August 2004
Pattern formation in self-organizing systems is ubiquitous in nature. Theoretical predictions and model simulations have to be compared with data of experimentally grown structures to improve the understanding of pattern formation processes. Our measuremens of the thickness of dendritic fins support the validity of the analytical predictions (Brener E. Phys. Rev. Lett. 71 (1993) 3653). An image processing technique to be applied to transparent objects has been developed and three-dimensional shapes of xenon dendrites have been reconstructed from experimental data. Using the reconstructed dendrite it can be proved that 3D phase field simulations are in qualitative agreement with our experimentally grown dendrites.
68.70.+w - Whiskers and dendrites (growth, structure, and nonelectronic properties).
81.10.Aj - Theory and models of crystal growth; physics of crystal growth, crystal morphology and orientation.
64.70.Dv - Solid-liquid transitions.
© EDP Sciences 2004