Structure in cohesive powder studied with spin-echo small angle neutron scattering

R. Andersson, W.G. Bouwman, Stefan Luding, I.M. de Schepper

Research output: Contribution to journalArticleAcademicpeer-review

6 Citations (Scopus)
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Abstract

Extracting structure and ordering information from the bulk of granular materials is a challenging task. Here we present Spin-Echo Small Angle Neutron Scattering Measurements in combination with computer simulations on a fine powder of silica, before and after uniaxial compression. The cohesive powder packing is modeled by using molecular dynamics simulations and the structure, in terms of the density–density correlation function, is calculated from the simulation and compared with experiment. In the dense case, both quantitative and qualitative agreement between measurement and simulations is observed, thus creating the desired link between experiment and computer simulation. Further simulations with appropriate attractive potentials and adequate preparation procedures are needed in order to capture the very loose-packed cohesive powders.
Original languageUndefined
Pages (from-to)407-414
Number of pages8
JournalGranular matter
Volume10
Issue number6
DOIs
Publication statusPublished - 2008

Keywords

  • SESANS · Powder · Cohesion · Structure · Density correlation · Molecular dynamics
  • IR-80347
  • METIS-249690

Cite this

Andersson, R. ; Bouwman, W.G. ; Luding, Stefan ; de Schepper, I.M. / Structure in cohesive powder studied with spin-echo small angle neutron scattering. In: Granular matter. 2008 ; Vol. 10, No. 6. pp. 407-414.
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Structure in cohesive powder studied with spin-echo small angle neutron scattering. / Andersson, R.; Bouwman, W.G.; Luding, Stefan; de Schepper, I.M.

In: Granular matter, Vol. 10, No. 6, 2008, p. 407-414.

Research output: Contribution to journalArticleAcademicpeer-review

TY - JOUR

T1 - Structure in cohesive powder studied with spin-echo small angle neutron scattering

AU - Andersson, R.

AU - Bouwman, W.G.

AU - Luding, Stefan

AU - de Schepper, I.M.

N1 - Open Access

PY - 2008

Y1 - 2008

N2 - Extracting structure and ordering information from the bulk of granular materials is a challenging task. Here we present Spin-Echo Small Angle Neutron Scattering Measurements in combination with computer simulations on a fine powder of silica, before and after uniaxial compression. The cohesive powder packing is modeled by using molecular dynamics simulations and the structure, in terms of the density–density correlation function, is calculated from the simulation and compared with experiment. In the dense case, both quantitative and qualitative agreement between measurement and simulations is observed, thus creating the desired link between experiment and computer simulation. Further simulations with appropriate attractive potentials and adequate preparation procedures are needed in order to capture the very loose-packed cohesive powders.

AB - Extracting structure and ordering information from the bulk of granular materials is a challenging task. Here we present Spin-Echo Small Angle Neutron Scattering Measurements in combination with computer simulations on a fine powder of silica, before and after uniaxial compression. The cohesive powder packing is modeled by using molecular dynamics simulations and the structure, in terms of the density–density correlation function, is calculated from the simulation and compared with experiment. In the dense case, both quantitative and qualitative agreement between measurement and simulations is observed, thus creating the desired link between experiment and computer simulation. Further simulations with appropriate attractive potentials and adequate preparation procedures are needed in order to capture the very loose-packed cohesive powders.

KW - SESANS · Powder · Cohesion · Structure · Density correlation · Molecular dynamics

KW - IR-80347

KW - METIS-249690

U2 - 10.1007/s10035-008-0109-z

DO - 10.1007/s10035-008-0109-z

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VL - 10

SP - 407

EP - 414

JO - Granular matter

JF - Granular matter

SN - 1434-5021

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