Characterization of Macroscopic Structural Disorder in Porous Media Using Mercury Porosimetry

Sean P Rigby, Robin S Fletcher, Sandra N Riley

Research output: Contribution to journalArticle

20 Citations (Scopus)

Abstract

A new structural model for the interpretation of Hg porosimetry data for samples having a bimodal pore size distribution is presented. The morphol. of the macropore network of a porous solid was studied using a combination of Hg porosimetry and NMR techniques. The model consists of a lattice-based network of pore bodies and pore necks. The model enables assessment of the spatial geometric distribution of the directly accessible macropore network of a porous material having a bimodal pore size distribution. A methodol. that can be used to det. the spatial distribution of the crit. pore neck diams. controlling access to the macroporous void space also was described. This method was used to provide a map of the local crit. macropore neck distribution over macroscopic length scales for an alumina tablet that is not possible with other techniques. (c) 2001 Academic Press. [on SciFinder (R)]
Original languageEnglish
Pages (from-to)190-210
Number of pages21
JournalJournal of Colloid and Interface Science
Volume240
Issue number1
Publication statusPublished - 2001

Keywords

  • characterization of macroscopic structural disorder in porous media using mercury porosimetry)
  • Simulation and Modeling (for interpretation of Hg porosimetry data for samples having bimodal pore size distribution)
  • NMR (characterization of macroscopic structural disorder in porous media using mercury porosimetry in conjunction with)
  • Porous materials (characterization of macroscopic structural disorder in porous media using mercury porosimetry)
  • Porosity
  • disorder porous media mercury porosimetry model
  • Pore size distribution (bimodal
  • Disorder

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