Abstract
Formation of disordered and ordered pore patterns in two dimensions have been reported in pore growth in nanoporous alumina templates. This is explained in terms of instability in the pattern formation. Here, we report our observation of instability in the pattern formation in three dimensions, that is, along the cylindrical axis of the pores. The instability is revealed in the form of dendrites in the pore pattern under certain fabrication conditions. We examine the conditions under which two- and three-dimensional instability occurs and compare our observations of the two dimensional case with existing models in the literature.
Keywords
dendrites, porosity, aluminium compounds, porous materials
Disciplines
Materials Science and Engineering
Publisher
American Institute of Physics
Publication Date
4-30-2007
Rights Information
© 2007 American Institute of Physics
Rights Holder
American Institute of Physics
Permanent URL
Recommended Citation
Friedman, Adam L. and Menon, Latika, "Dendritic-pattern formation in anodic aluminum oxide templates" (2007). Physics Faculty Publications. Paper 527. http://hdl.handle.net/2047/d20002675
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Additional Files
figure1.zip (5300 kB)Figure 1
figure2.zip (17 kB)
Figure 2
figure3.zip (7996 kB)
Figure 3
figure4.zip (2153 kB)
Figure 4
figure5.zip (1603 kB)
Figure 5
figure6.zip (11 kB)
Figure 6
figure7.zip (14 kB)
Figure 7
Notes
Originally published in Journal of Applied Physics 101, 084310 (2007). DOI:10.1063/1.2718882