Particle Crowding Index

  • James E. Funk
  • Dennis R. Dinger
Chapter

Abstract

The objective of this test is:
  1. 1.

    Combine the Particle Size Distribution as measured by sedimentometry, with the Specific Surface Area as measured by nitrogen adsorption, to extend the particle size distribution of any powder sample down to a reasonable Ds.

     
  2. 2.

    Combining PCI with MBI as the ratio of MBI/PCI (ignoring the exponent 1015 in the PCI measurement) provides an excellent prediction of the plasticity of any given clay and body composition.

     
  3. 3.

    The data file for PCI contains information which can be used to assess the IPS (interparticle separation distance) between all particles in all the class sizes, between all the particles in a single class size, and the contribution to rheology of the van der Waals forces of attraction.

     

Keywords

Clay Permeability Porosity Sedimentation Milling 

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References

  1. 1.
    Brunauer, S., Emmett, P.H., and Teller, E., “The Adsorption of Gases in Multimolecular Layers,” J. Am. Chem. Soc., 60, 309–319 (1939).CrossRefGoogle Scholar
  2. 2.
    Andreasen, A.H.M., and Andersen, J., “Über die Beziehung zwischen Komabstufung und Zwischenraum in Produkten aus losen KÖrnern (mit einigen Experimenten),” Kolloid-Z., 50, 217–228 (1930).CrossRefGoogle Scholar
  3. 3.
    Gaudin, A.M., and Hukki, R.T., “Principles of Comminution-Size & Surface Distribution,” Treats AIME, 169, 67 (1944).Google Scholar
  4. 4.
    Schuhmann, R., “Principles of Comminution, I-Size Distribution and Surface Calculations,” Mining Technol., 7, 1–11 (1940).Google Scholar

Copyright information

© Springer Science+Business Media New York 1994

Authors and Affiliations

  • James E. Funk
    • 1
  • Dennis R. Dinger
    • 2
  1. 1.JEFCO Ceramic ConsultantsUSA
  2. 2.Clemson UniversityUSA

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