Experimental pattern transitions in a Liesegang system

Atsushi Toramaru, T. Harada, T. Okamura

Research output: Contribution to journalArticle

36 Citations (Scopus)

Abstract

We experimentally found various patterns of precipitation in a lead iodide Liesegang system: periodic precipitation, continuous tree-like crystal aggregates and periodic tree-like crystal aggregates. Gel and reactant concentrations are two major controlling factors. At high gel concentrations, Liesegang band forms, whereas at low gel concentrations, tree-like crystal aggregates similar to diffusion-limited aggregation (DLA) develop in the entire system. At an intermediate gel concentration, Liesegang band and tree-like crystal aggregates coexist. At lower reactant concentration, the periodic tree-like crystal aggregates tends to form. A simple scaling argument that the kinetics of bulk and surface nucleation plays an important role, is presented to understand the effect of gel concentration on pattern transition.

Original languageEnglish
Pages (from-to)133-140
Number of pages8
JournalPhysica D: Nonlinear Phenomena
Volume183
Issue number1-2
DOIs
Publication statusPublished - Sep 1 2003

Fingerprint

gels
crystals
iodides
low concentrations
nucleation
scaling
kinetics

All Science Journal Classification (ASJC) codes

  • Statistical and Nonlinear Physics
  • Mathematical Physics
  • Condensed Matter Physics
  • Applied Mathematics

Cite this

Experimental pattern transitions in a Liesegang system. / Toramaru, Atsushi; Harada, T.; Okamura, T.

In: Physica D: Nonlinear Phenomena, Vol. 183, No. 1-2, 01.09.2003, p. 133-140.

Research output: Contribution to journalArticle

Toramaru, Atsushi ; Harada, T. ; Okamura, T. / Experimental pattern transitions in a Liesegang system. In: Physica D: Nonlinear Phenomena. 2003 ; Vol. 183, No. 1-2. pp. 133-140.
@article{6c89d60f044a4425964ffe3fbab5ebab,
title = "Experimental pattern transitions in a Liesegang system",
abstract = "We experimentally found various patterns of precipitation in a lead iodide Liesegang system: periodic precipitation, continuous tree-like crystal aggregates and periodic tree-like crystal aggregates. Gel and reactant concentrations are two major controlling factors. At high gel concentrations, Liesegang band forms, whereas at low gel concentrations, tree-like crystal aggregates similar to diffusion-limited aggregation (DLA) develop in the entire system. At an intermediate gel concentration, Liesegang band and tree-like crystal aggregates coexist. At lower reactant concentration, the periodic tree-like crystal aggregates tends to form. A simple scaling argument that the kinetics of bulk and surface nucleation plays an important role, is presented to understand the effect of gel concentration on pattern transition.",
author = "Atsushi Toramaru and T. Harada and T. Okamura",
year = "2003",
month = "9",
day = "1",
doi = "10.1016/S0167-2789(03)00139-8",
language = "English",
volume = "183",
pages = "133--140",
journal = "Physica D: Nonlinear Phenomena",
issn = "0167-2789",
publisher = "Elsevier",
number = "1-2",

}

TY - JOUR

T1 - Experimental pattern transitions in a Liesegang system

AU - Toramaru, Atsushi

AU - Harada, T.

AU - Okamura, T.

PY - 2003/9/1

Y1 - 2003/9/1

N2 - We experimentally found various patterns of precipitation in a lead iodide Liesegang system: periodic precipitation, continuous tree-like crystal aggregates and periodic tree-like crystal aggregates. Gel and reactant concentrations are two major controlling factors. At high gel concentrations, Liesegang band forms, whereas at low gel concentrations, tree-like crystal aggregates similar to diffusion-limited aggregation (DLA) develop in the entire system. At an intermediate gel concentration, Liesegang band and tree-like crystal aggregates coexist. At lower reactant concentration, the periodic tree-like crystal aggregates tends to form. A simple scaling argument that the kinetics of bulk and surface nucleation plays an important role, is presented to understand the effect of gel concentration on pattern transition.

AB - We experimentally found various patterns of precipitation in a lead iodide Liesegang system: periodic precipitation, continuous tree-like crystal aggregates and periodic tree-like crystal aggregates. Gel and reactant concentrations are two major controlling factors. At high gel concentrations, Liesegang band forms, whereas at low gel concentrations, tree-like crystal aggregates similar to diffusion-limited aggregation (DLA) develop in the entire system. At an intermediate gel concentration, Liesegang band and tree-like crystal aggregates coexist. At lower reactant concentration, the periodic tree-like crystal aggregates tends to form. A simple scaling argument that the kinetics of bulk and surface nucleation plays an important role, is presented to understand the effect of gel concentration on pattern transition.

UR - http://www.scopus.com/inward/record.url?scp=0042012921&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0042012921&partnerID=8YFLogxK

U2 - 10.1016/S0167-2789(03)00139-8

DO - 10.1016/S0167-2789(03)00139-8

M3 - Article

VL - 183

SP - 133

EP - 140

JO - Physica D: Nonlinear Phenomena

JF - Physica D: Nonlinear Phenomena

SN - 0167-2789

IS - 1-2

ER -