Modeling of twinning processes in silver bromide precipitation

Ramesh Jagannathan, V. V. Gokhale

Research output: Contribution to journalArticle

Abstract

A probabilistic model has been developed to predict the various morphologies of silver bromide crystals obtained by twinning octahedral nuclei. The morphological fractions (i.e., untwinned, singly twinned, doubly parallel twinned, etc.) have been calculated as functions of a twinning probability t, a thermodynamic parameter. The model suggests that under commonly used conditions for precipitating twinned AgBr crystals, the time required for a twinning event to occur is of the order of a few msec. The model also predicts a high sensitivity of the various morphological fractions on the twinning probability t and therefore on the 〈111〉 surface supersaturation. The comparable time scales associated with twinning and micromixing and the sensitivity of the precipitated morphological fractions on the twinning probability t highlight the critical role of micromixing in the precipitation of twinned AgBr crystals.

Original languageEnglish (US)
Pages (from-to)113-118
Number of pages6
JournalJournal of Imaging Science
Volume35
Issue number2
StatePublished - Mar 1 1991

Fingerprint

Twinning
Silver
Crystals
Supersaturation
Thermodynamics

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Modeling of twinning processes in silver bromide precipitation. / Jagannathan, Ramesh; Gokhale, V. V.

In: Journal of Imaging Science, Vol. 35, No. 2, 01.03.1991, p. 113-118.

Research output: Contribution to journalArticle

@article{2abab733dca449c09819e67165112e16,
title = "Modeling of twinning processes in silver bromide precipitation",
abstract = "A probabilistic model has been developed to predict the various morphologies of silver bromide crystals obtained by twinning octahedral nuclei. The morphological fractions (i.e., untwinned, singly twinned, doubly parallel twinned, etc.) have been calculated as functions of a twinning probability t, a thermodynamic parameter. The model suggests that under commonly used conditions for precipitating twinned AgBr crystals, the time required for a twinning event to occur is of the order of a few msec. The model also predicts a high sensitivity of the various morphological fractions on the twinning probability t and therefore on the 〈111〉 surface supersaturation. The comparable time scales associated with twinning and micromixing and the sensitivity of the precipitated morphological fractions on the twinning probability t highlight the critical role of micromixing in the precipitation of twinned AgBr crystals.",
author = "Ramesh Jagannathan and Gokhale, {V. V.}",
year = "1991",
month = "3",
day = "1",
language = "English (US)",
volume = "35",
pages = "113--118",
journal = "Journal of Imaging Science",
issn = "8750-9237",
publisher = "Society for Imaging Science and Technology",
number = "2",

}

TY - JOUR

T1 - Modeling of twinning processes in silver bromide precipitation

AU - Jagannathan, Ramesh

AU - Gokhale, V. V.

PY - 1991/3/1

Y1 - 1991/3/1

N2 - A probabilistic model has been developed to predict the various morphologies of silver bromide crystals obtained by twinning octahedral nuclei. The morphological fractions (i.e., untwinned, singly twinned, doubly parallel twinned, etc.) have been calculated as functions of a twinning probability t, a thermodynamic parameter. The model suggests that under commonly used conditions for precipitating twinned AgBr crystals, the time required for a twinning event to occur is of the order of a few msec. The model also predicts a high sensitivity of the various morphological fractions on the twinning probability t and therefore on the 〈111〉 surface supersaturation. The comparable time scales associated with twinning and micromixing and the sensitivity of the precipitated morphological fractions on the twinning probability t highlight the critical role of micromixing in the precipitation of twinned AgBr crystals.

AB - A probabilistic model has been developed to predict the various morphologies of silver bromide crystals obtained by twinning octahedral nuclei. The morphological fractions (i.e., untwinned, singly twinned, doubly parallel twinned, etc.) have been calculated as functions of a twinning probability t, a thermodynamic parameter. The model suggests that under commonly used conditions for precipitating twinned AgBr crystals, the time required for a twinning event to occur is of the order of a few msec. The model also predicts a high sensitivity of the various morphological fractions on the twinning probability t and therefore on the 〈111〉 surface supersaturation. The comparable time scales associated with twinning and micromixing and the sensitivity of the precipitated morphological fractions on the twinning probability t highlight the critical role of micromixing in the precipitation of twinned AgBr crystals.

UR - http://www.scopus.com/inward/record.url?scp=0026119995&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0026119995&partnerID=8YFLogxK

M3 - Article

VL - 35

SP - 113

EP - 118

JO - Journal of Imaging Science

JF - Journal of Imaging Science

SN - 8750-9237

IS - 2

ER -