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      https://www.ias.ac.in/article/fulltext/pram/060/06/1259-1271

    • Keywords

       

      Liesegang rings; periodic precipitation; moving boundary; Matalon-Packter law

    • Abstract

       

      The periodic precipitation pattern formation in gelatinous media is interpreted as a moving boundary problem. The time law, spacing law and width law are revisited on the basis of the new scenario. The explicit dependence of the geometric structure on the initial concentrations of the reactants is derived. Matalon—Packter law, which relates the spacing coefficient with the initial concentrations is reformulated removing many ambiguities and impractical parameters. Experimental results are discussed to establish the significance of moving boundary concept in the diffusion controlled pattern forming systems

    • Author Affiliations

       

      Jacob George1 Issac Paul1 2 P A Varughese1 2 George Varghese1 2

      1. Crystal Physics Division, Christian College, Chengannur - 689 122, India
      2. Crystal Physics Centre, St. Berchmans’ College, Chenganacherry - 686 101, India
    • Dates

       
  • Pramana – Journal of Physics | News

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      Posted on July 25, 2019

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