An experimental study of columnar crystals using monodisperse microbubbles

Aaron Meagher; F. García-Moreno; J. Banhart; Adil Mughal; S. Hutzler

doi:10.1016/j.colsurfa.2014.12.020

An experimental study of columnar crystals using monodisperse microbubbles

Aaron Meagher
, F. García-Moreno
, J. Banhart
, Adil Mughal
, S. Hutzler

Adran Mathemateg

Technische Universität Berlin
Helmholtz-Zentrum Berlin für Materialien und Energie
Trinity College Dublin

Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

21 Dyfyniadau (Scopus)

318 Wedi eu Llwytho i Lawr (Pure)

Crynodeb

We investigate the ordered arrangements of monodisperse microbubbles confined within narrow cylinders. These foams were imaged using X-ray tomography, allowing the 3D positions of the bubbles of the foam to be accurately determined. The structure of these foams closely resemble the minimum energy configuration of hard spheres in cylindrical confinement as found in simulations. For larger ratios, λ, of cylinder to bubble diameter two- and three-layered crystals were formed. Each layer of these structures is found to be ordered, with each internal layer resembling structures found at lower λ values. The average number of contacts per bubble is seen to increase with λ.

Iaith wreiddiol	Saesneg
Tudalennau (o-i)	55-59
Nifer y tudalennau	5
Cyfnodolyn	Colloids and Surfaces A: Physicochemical and Engineering Aspects
Cyfrol	473
Dyddiad ar-lein cynnar	21 Ion 2015
Dynodwyr Gwrthrych Digidol (DOIs)	https://doi.org/10.1016/j.colsurfa.2014.12.020
Statws	Cyhoeddwyd - 20 Mai 2015

Mynediad at Ddogfen

10.1016/j.colsurfa.2014.12.020Trwydded: Cyhoeddwr

a256_meagher2014Llawysgrif awdur wedi’i dderbyn, 11.9 MBTrwydded: CC BY-NC-ND

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- aqmaber.acuk
- Adran Mathemateg - Lecturer
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@article{05a611cd8fb042e4a00e63de9dafa08e,

title = "An experimental study of columnar crystals using monodisperse microbubbles",

abstract = "We investigate the ordered arrangements of monodisperse microbubbles confined within narrow cylinders. These foams were imaged using X-ray tomography, allowing the 3D positions of the bubbles of the foam to be accurately determined. The structure of these foams closely resemble the minimum energy configuration of hard spheres in cylindrical confinement as found in simulations. For larger ratios, λ, of cylinder to bubble diameter two- and three-layered crystals were formed. Each layer of these structures is found to be ordered, with each internal layer resembling structures found at lower λ values. The average number of contacts per bubble is seen to increase with λ.",

keywords = "Columnar crystals, Microbubbles, Ordering, X-ray tomography",

author = "Aaron Meagher and F. Garc{\'i}a-Moreno and J. Banhart and Adil Mughal and S. Hutzler",

note = "Publisher Copyright: {\textcopyright} 2015 Elsevier B.V.",

year = "2015",

month = may,

day = "20",

doi = "10.1016/j.colsurfa.2014.12.020",

language = "English",

volume = "473",

pages = "55--59",

journal = "Colloids and Surfaces A: Physicochemical and Engineering Aspects",

issn = "0927-7757",

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TY - JOUR

T1 - An experimental study of columnar crystals using monodisperse microbubbles

AU - Meagher, Aaron

AU - García-Moreno, F.

AU - Banhart, J.

AU - Mughal, Adil

AU - Hutzler, S.

PY - 2015/5/20

Y1 - 2015/5/20

N2 - We investigate the ordered arrangements of monodisperse microbubbles confined within narrow cylinders. These foams were imaged using X-ray tomography, allowing the 3D positions of the bubbles of the foam to be accurately determined. The structure of these foams closely resemble the minimum energy configuration of hard spheres in cylindrical confinement as found in simulations. For larger ratios, λ, of cylinder to bubble diameter two- and three-layered crystals were formed. Each layer of these structures is found to be ordered, with each internal layer resembling structures found at lower λ values. The average number of contacts per bubble is seen to increase with λ.

AB - We investigate the ordered arrangements of monodisperse microbubbles confined within narrow cylinders. These foams were imaged using X-ray tomography, allowing the 3D positions of the bubbles of the foam to be accurately determined. The structure of these foams closely resemble the minimum energy configuration of hard spheres in cylindrical confinement as found in simulations. For larger ratios, λ, of cylinder to bubble diameter two- and three-layered crystals were formed. Each layer of these structures is found to be ordered, with each internal layer resembling structures found at lower λ values. The average number of contacts per bubble is seen to increase with λ.

KW - Columnar crystals

KW - Microbubbles

KW - Ordering

KW - X-ray tomography

UR - https://www.scopus.com/pages/publications/84937762127

U2 - 10.1016/j.colsurfa.2014.12.020

DO - 10.1016/j.colsurfa.2014.12.020

M3 - Article

SN - 0927-7757

VL - 473

SP - 55

EP - 59

JO - Colloids and Surfaces A: Physicochemical and Engineering Aspects

JF - Colloids and Surfaces A: Physicochemical and Engineering Aspects

ER -

An experimental study of columnar crystals using monodisperse microbubbles

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