Shear induced alignment of kaolinite: Studies using a diffraction technique

  • A. B. D. Brown
  • S. M. Clarke
  • A. R. Rennie
Polymer Colloids
Part of the Progress in Colloid & Polymer Science book series (PROGCOLLOID, volume 110)


Shear alignment in dispersions of kaolinite particles was measured using neutron diffraction. The orientation distribution of particles was determined as a function of flow rate. The plate normals move towards the shear gradient from the compressional direction as shear rate is increased from 0.2 to 20 s−1. The particle alignment also increases with flow. Order parameters are calculated and compared with theoretical models.

Key words

Plate-like particles neutron diffraction orientation clay 


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  1. 1.
    Goodwin JW (1990) In: Candau F, Ottewill RH (eds) An Introduction to Polymer Colloids. Kluwer Academic Publishers, Dordrecht, pp 209–223Google Scholar
  2. 2.
    Ashdown S, Markovic I, Ottewill RH, Lindner P, Oberthür RC, Rennie AR (1990) Langmuir 6:303–307CrossRefGoogle Scholar
  3. 3.
    Clarke SM, Rennie AR, Ottewill RH (1995) Adv Coll Interf Sci 60:95–118CrossRefGoogle Scholar
  4. 4.
    Ramsay JDF, Lindner P (1993) J Chem Soc Farad Trans 89:4207CrossRefGoogle Scholar
  5. 5.
    Brindley GW, Brown G (1984) Crystal Structures of Clay Minerals and their X-ray Identification. Mineralogical Society, LondonGoogle Scholar
  6. 6.
    Clarke SM, Rennie AR, Convert P (1996) Europhy Letts 35:233–238CrossRefGoogle Scholar
  7. 7.
    Weissberger A (ed) (1960) Techniques of Organic Chemistry, Vol I, 3rd ed. Interscience Publishers Ltd, London, pp 2398–2416Google Scholar
  8. 8.
    Carlsson T (1983) J Physique 44:909–911CrossRefGoogle Scholar
  9. 9.
    Brown ABD, Clarke SM, Rennie AR, in preparationGoogle Scholar

Copyright information

© Dr. Dietrich Steinkopff Verlag GmbH & Co. KG 1998

Authors and Affiliations

  • A. B. D. Brown
    • 1
  • S. M. Clarke
    • 1
  • A. R. Rennie
    • 1
  1. 1.Cavendish LaboratoryCambridge UniversityCambridgeUnited Kingdom

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