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Side-branch growth in two-dimensional dendrites. I. Experiments

2005
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Physical Review E
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The dynamics of growth of dendrites' side branches is investigated experimentally during the crystallization of solutions of ammonium bromide in a quasi-two-dimensional cell. Two regimes are observed. At small values of the Peclet number a self-affine fractal forms. In this regime it is known that the mean lateral front grows as t 0.5 . Here the length of each individual branch is shown to grow ͑before being screened off͒ with a power-law behavior t ␣ n . The value of the exponent ␣ n ͑0.5ഛ ␣ n

doi:10.1103/physreve.71.031602
pmid:15903438
fatcat:ctgn73qrlrfthomwqurkhpkfe4