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Growth and forms of spherulitic crystal pattern in a Belousov‐Zhabotinski type reaction system
Author(s) -
Yadav N.,
Srivastava P. K.
Publication year - 2011
Publication title -
crystal research and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.377
H-Index - 64
eISSN - 1521-4079
pISSN - 0232-1300
DOI - 10.1002/crat.201000525
Subject(s) - nucleation , crystal (programming language) , phase (matter) , substrate (aquarium) , morphology (biology) , crystallography , chemical physics , phase transition , crystal growth , chemistry , materials science , pattern formation , chemical engineering , thermodynamics , organic chemistry , physics , geology , paleontology , oceanography , computer science , engineering , programming language , genetics , biology
The growth of spherulitic like crystal patterns in a dual substrate Belousov–Zhabotinski (BZ) reaction system has been studied. The solution phase reaction has been found to show concentric ring like wave pattern. A colloidal phase consisting of numerous fine solid particles have also been observed during reaction process, which initially forms the solid phase nucleation centers of dendritic character, and subsequently grow into spherulitic like crystal patterns. The reaction mechanism has been proposed, which illustrate possible reaction products formed during solution phase reaction that are inevitably involved in the formation of the dendritic nucleation centers. The spherulitic crystal pattern has been found to show transition in morphology by substituted organic substrate.The transition behaviour of crystal pattern has also been described and discussed. (© 2011 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)