Structure of hard-sphere colloid observed in real space by spin-echo small-angle neutron scattering

Timofey Kruglov; Wim G. Bouwman; Jeroen Plomp; M. Theo Rekveldt; Gert Jan Vroege; Andrei V. Petukhov; D. M E Thies-Weesie

doi:10.1016/j.physb.2004.12.032

Structure of hard-sphere colloid observed in real space by spin-echo small-angle neutron scattering

Timofey Kruglov^*, Wim G. Bouwman, Jeroen Plomp, M. Theo Rekveldt, Gert Jan Vroege, Andrei V. Petukhov, D. M E Thies-Weesie

^*Corresponding author for this work

Delft University of Technology, Deltares and Utrecht University

Research output: Contribution to journal › Article › Academic › peer-review

Abstract

Spin-echo small-angle neutron scattering (SESANS) opens a wide range of potential applications. One of them is the study of colloids. Using SESANS we measured the structure of hard-sphere colloidal suspensions at two concentrations. We show that SESANS measures real-space correlations due to the particle shape as well as interactions between them. The dilute suspension showed no correlations exceeding the particle diameter. For a concentrated colloid the effect of the excluded volume is observed as a minimum in correlation function. Experimental correlation functions are compared with theoretical ones for noninteracting spheres and a hard-sphere liquid. The scattering density, volume fraction and the radius of particles are also determined from SESANS correlation function.

Original language	English
Pages (from-to)	452-455
Number of pages	4
Journal	Physica. B, condensed matter
Volume	357
Issue number	3-4
DOIs	https://doi.org/10.1016/j.physb.2004.12.032
Publication status	Published - 15 Mar 2005

Keywords

Colloid
Correlation function
SESANS
Spin-echo small-angle neutron scattering

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10.1016/j.physb.2004.12.032

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title = "Structure of hard-sphere colloid observed in real space by spin-echo small-angle neutron scattering",

abstract = "Spin-echo small-angle neutron scattering (SESANS) opens a wide range of potential applications. One of them is the study of colloids. Using SESANS we measured the structure of hard-sphere colloidal suspensions at two concentrations. We show that SESANS measures real-space correlations due to the particle shape as well as interactions between them. The dilute suspension showed no correlations exceeding the particle diameter. For a concentrated colloid the effect of the excluded volume is observed as a minimum in correlation function. Experimental correlation functions are compared with theoretical ones for noninteracting spheres and a hard-sphere liquid. The scattering density, volume fraction and the radius of particles are also determined from SESANS correlation function.",

keywords = "Colloid, Correlation function, SESANS, Spin-echo small-angle neutron scattering",

author = "Timofey Kruglov and Bouwman, \{Wim G.\} and Jeroen Plomp and \{Theo Rekveldt\}, M. and \{Jan Vroege\}, Gert and Petukhov, \{Andrei V.\} and Thies-Weesie, \{D. M E\}",

year = "2005",

month = mar,

day = "15",

doi = "10.1016/j.physb.2004.12.032",

language = "English",

volume = "357",

pages = "452--455",

journal = "Physica. B, condensed matter",

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number = "3-4",

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TY - JOUR

T1 - Structure of hard-sphere colloid observed in real space by spin-echo small-angle neutron scattering

AU - Kruglov, Timofey

AU - Bouwman, Wim G.

AU - Plomp, Jeroen

AU - Theo Rekveldt, M.

AU - Jan Vroege, Gert

AU - Petukhov, Andrei V.

AU - Thies-Weesie, D. M E

PY - 2005/3/15

Y1 - 2005/3/15

N2 - Spin-echo small-angle neutron scattering (SESANS) opens a wide range of potential applications. One of them is the study of colloids. Using SESANS we measured the structure of hard-sphere colloidal suspensions at two concentrations. We show that SESANS measures real-space correlations due to the particle shape as well as interactions between them. The dilute suspension showed no correlations exceeding the particle diameter. For a concentrated colloid the effect of the excluded volume is observed as a minimum in correlation function. Experimental correlation functions are compared with theoretical ones for noninteracting spheres and a hard-sphere liquid. The scattering density, volume fraction and the radius of particles are also determined from SESANS correlation function.

AB - Spin-echo small-angle neutron scattering (SESANS) opens a wide range of potential applications. One of them is the study of colloids. Using SESANS we measured the structure of hard-sphere colloidal suspensions at two concentrations. We show that SESANS measures real-space correlations due to the particle shape as well as interactions between them. The dilute suspension showed no correlations exceeding the particle diameter. For a concentrated colloid the effect of the excluded volume is observed as a minimum in correlation function. Experimental correlation functions are compared with theoretical ones for noninteracting spheres and a hard-sphere liquid. The scattering density, volume fraction and the radius of particles are also determined from SESANS correlation function.

KW - Colloid

KW - Correlation function

KW - SESANS

KW - Spin-echo small-angle neutron scattering

UR - https://www.scopus.com/pages/publications/14644415973

U2 - 10.1016/j.physb.2004.12.032

DO - 10.1016/j.physb.2004.12.032

M3 - Article

AN - SCOPUS:14644415973

SN - 0921-4526

VL - 357

SP - 452

EP - 455

JO - Physica. B, condensed matter

JF - Physica. B, condensed matter

IS - 3-4

ER -

Structure of hard-sphere colloid observed in real space by spin-echo small-angle neutron scattering

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Keywords

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