Direct visualization of dislocation dynamics in grain-boundary scars

Peter Lipowsky, Mark John Bowick, Jan H. Meinke, David R. Nelson, Andreas R. Bausch

Research output: Contribution to journalArticle

110 Citations (Scopus)

Abstract

The structural features and the equilibrium dynamics of micrometer-scale spherical crystals formed by polystyrene particles adsorbed on the surface of a spherical water droplet were analyzed. Rapid dislocation glide with fluctuations over the barriers separating one local Peierls minimum from the next and rather weak binding of dislocations to their associated scars were observed. The long-distance dislocation diffusion glide constant was extracted directly from the experimental data and was found to be moderately faster than single-particle diffusion. The parameters of the Peierls potential induced by the underlying crystalline lattice were determined.

Original languageEnglish (US)
Pages (from-to)407-411
Number of pages5
JournalNature Materials
Volume4
Issue number5
DOIs
StatePublished - May 2005

Fingerprint

scars
Dislocations (crystals)
Grain boundaries
Visualization
grain boundaries
Polystyrenes
Crystal lattices
particle diffusion
Crystalline materials
Crystals
Water
micrometers
polystyrene
water
crystals

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Lipowsky, P., Bowick, M. J., Meinke, J. H., Nelson, D. R., & Bausch, A. R. (2005). Direct visualization of dislocation dynamics in grain-boundary scars. Nature Materials, 4(5), 407-411. https://doi.org/10.1038/nmat1376

Direct visualization of dislocation dynamics in grain-boundary scars. / Lipowsky, Peter; Bowick, Mark John; Meinke, Jan H.; Nelson, David R.; Bausch, Andreas R.

In: Nature Materials, Vol. 4, No. 5, 05.2005, p. 407-411.

Research output: Contribution to journalArticle

Lipowsky, P, Bowick, MJ, Meinke, JH, Nelson, DR & Bausch, AR 2005, 'Direct visualization of dislocation dynamics in grain-boundary scars', Nature Materials, vol. 4, no. 5, pp. 407-411. https://doi.org/10.1038/nmat1376
Lipowsky P, Bowick MJ, Meinke JH, Nelson DR, Bausch AR. Direct visualization of dislocation dynamics in grain-boundary scars. Nature Materials. 2005 May;4(5):407-411. https://doi.org/10.1038/nmat1376
Lipowsky, Peter ; Bowick, Mark John ; Meinke, Jan H. ; Nelson, David R. ; Bausch, Andreas R. / Direct visualization of dislocation dynamics in grain-boundary scars. In: Nature Materials. 2005 ; Vol. 4, No. 5. pp. 407-411.
@article{cf245cbb9be049fd829f8f729e1f4500,
title = "Direct visualization of dislocation dynamics in grain-boundary scars",
abstract = "The structural features and the equilibrium dynamics of micrometer-scale spherical crystals formed by polystyrene particles adsorbed on the surface of a spherical water droplet were analyzed. Rapid dislocation glide with fluctuations over the barriers separating one local Peierls minimum from the next and rather weak binding of dislocations to their associated scars were observed. The long-distance dislocation diffusion glide constant was extracted directly from the experimental data and was found to be moderately faster than single-particle diffusion. The parameters of the Peierls potential induced by the underlying crystalline lattice were determined.",
author = "Peter Lipowsky and Bowick, {Mark John} and Meinke, {Jan H.} and Nelson, {David R.} and Bausch, {Andreas R.}",
year = "2005",
month = "5",
doi = "10.1038/nmat1376",
language = "English (US)",
volume = "4",
pages = "407--411",
journal = "Nature Materials",
issn = "1476-1122",
publisher = "Nature Publishing Group",
number = "5",

}

TY - JOUR

T1 - Direct visualization of dislocation dynamics in grain-boundary scars

AU - Lipowsky, Peter

AU - Bowick, Mark John

AU - Meinke, Jan H.

AU - Nelson, David R.

AU - Bausch, Andreas R.

PY - 2005/5

Y1 - 2005/5

N2 - The structural features and the equilibrium dynamics of micrometer-scale spherical crystals formed by polystyrene particles adsorbed on the surface of a spherical water droplet were analyzed. Rapid dislocation glide with fluctuations over the barriers separating one local Peierls minimum from the next and rather weak binding of dislocations to their associated scars were observed. The long-distance dislocation diffusion glide constant was extracted directly from the experimental data and was found to be moderately faster than single-particle diffusion. The parameters of the Peierls potential induced by the underlying crystalline lattice were determined.

AB - The structural features and the equilibrium dynamics of micrometer-scale spherical crystals formed by polystyrene particles adsorbed on the surface of a spherical water droplet were analyzed. Rapid dislocation glide with fluctuations over the barriers separating one local Peierls minimum from the next and rather weak binding of dislocations to their associated scars were observed. The long-distance dislocation diffusion glide constant was extracted directly from the experimental data and was found to be moderately faster than single-particle diffusion. The parameters of the Peierls potential induced by the underlying crystalline lattice were determined.

UR - http://www.scopus.com/inward/record.url?scp=17644384369&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=17644384369&partnerID=8YFLogxK

U2 - 10.1038/nmat1376

DO - 10.1038/nmat1376

M3 - Article

C2 - 15834411

AN - SCOPUS:17644384369

VL - 4

SP - 407

EP - 411

JO - Nature Materials

JF - Nature Materials

SN - 1476-1122

IS - 5

ER -