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

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  • معلومة اضافية
    • Publisher Information:
      Springer 2008-06-26
    • نبذة مختصرة :
      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.
      Radiation, Radionuclides and Reactors
      Applied Sciences
    • الموضوع:
      SESANS; Powder; Cohesion; Structure; Density correlation; Molecular dynamics; journal article; Text
    • Availability:
      Open access content. Open access content
      (c) 2008 Andersson, R.; Bouwman, W.G.; Luding, S.; De Schepper, I.M.
    • Note:
      English
    • Other Numbers:
      NLTUD oai:tudelft.nl:uuid:a4d8ab5d-5fce-4201-83a8-66dc9cceb627
      1008822874
    • Contributing Source:
      DELFT UNIV OF TECHNOL
      From OAIster®, provided by the OCLC Cooperative.
    • الرقم المعرف:
      edsoai.on1008822874
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