Finding bridges in packings of colloidal spheres

被引：14

作者：

Jenkins, Matthew C. ^{[1
,2
,3
]}

Haw, Mark D. ^{[1
,2
,4
]}

Barker, Gary C. ^{[5
]}

Poon, Wilson C. K. ^{[1
,2
]}

Egelhaaf, Stefan U. ^{[1
,2
,3
]}

机构：

[1] Univ Edinburgh, Sch Phys & Astron, Edinburgh EH9 3JZ, Midlothian, Scotland

[2] Univ Edinburgh, COSMIC, Edinburgh EH9 3JZ, Midlothian, Scotland

[3] Univ Dusseldorf, Condensed Matter Phys Lab, D-40225 Dusseldorf, Germany

[4] Univ Strathclyde, Dept Chem & Proc Engn, Glasgow G1 1XJ, Lanark, Scotland

[5] Inst Food Res, Norwich NR4 7UA, Norfolk, England

来源：

SOFT MATTER | 2011年 / 7卷 / 02期

基金：

英国工程与自然科学研究理事会;

关键词：

DYNAMIC-LIGHT-SCATTERING; GLASS-TRANSITION; HARD; MICROSCOPY; RIGIDITY;

D O I：

10.1039/c0sm00544d

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We identify putative load-bearing structures (bridges) in experimental colloidal systems studied by confocal microscopy. Bridges are co-operative structures that have been used to explain stability and inhomogeneous force transmission in simulated granular packings with a range of densities. We show that bridges similar to those found in granular simulations are present in real experimental colloidal packings. We describe critically the bridge-finding procedure for real experimental data and propose a new criterion-lowest mean squared separation (LSQS)-for selecting optimum stabilisations.

引用

页码：684 / 690

页数：7

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