Formation of Liesegang patterns

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66 Citations (Scopus)

Abstract

It has been recently shown that precipitation bands characteristic of Liesegang patterns emerge from spinodal decomposition of reaction products in the wake of moving reaction fronts. This mechanism explains the geometric sequence of band positions xn to approximately Q(1+p)n and, furthermore, it yields a spacing coefficient p that is in agreement with the experimentally observed Matalon-Packter law. Here I examine the assumptions underlying this theory and discuss the choice of input parameters that leads to experimentally observable patterns. I also show that the so-called width law relating the position and the width of the bands wn to approximately xn follows naturally from this theory.

Original languageEnglish
Pages (from-to)50-59
Number of pages10
JournalPhysica A: Statistical Mechanics and its Applications
Volume274
Issue number1
DOIs
Publication statusPublished - Dec 1 1999
EventProceedings of the 1999 NATO Advanced Research Workshop 'Applications of Statistical Physics' - Budapest, Hung
Duration: May 19 1999May 22 1999

ASJC Scopus subject areas

  • Statistics and Probability
  • Condensed Matter Physics

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