Journal of Materials Science

, Volume 31, Issue 10, pp 2623–2629 | Cite as

Investigation of the hydration and dehydration of aluminium oxide-hydroxide using high frequency dielectric measurements between 300 kHz-3 GHz

  • R. A. Pethrick
  • D. Hayward
  • K. Jeffrey
  • S. Affrossman
  • P. Wilford


Aluminium oxide exists in several forms which on addition of water give a complex range of oxide-hydroxide; boehmite, bayerite and gibbsite. High frequency dielectric measurements {300 kHz-3 GHz} are reported on the hydrated and dehydration of certain of these oxide-hydroxides. The amplitude of the observed dielectric relaxation correlates approximately with the water content, however anomalies can be observed during dehydration due to the retention of water in an immobilized form within the oxide matrix which highlights complexities in their structure and properties. These data indicate the potential of the dielectric method for quantification of the degree of hydration of an oxide in adhesive bonded structures. Two silane coupled alumina samples were studied to simulate the interface generated in the pre-treatment of real adhesive bonded structures.


Oxide Polymer Aluminium Hydration Silane 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. 1.
    J. D. MINFORD, “Treatise on Adhesion and Adhesives”, Ed. R. L. Patrick (Marcel Dekker Inc., New York (1981)5 45.Google Scholar
  2. 2.
    A. J. KINLOCH, “Adhesion and Adhesives, Science and Technology” (Chapman and Hall Ltd., London, 1987) Chpt. 4.CrossRefGoogle Scholar
  3. 3.
    P. C. HEWLETT and C. A. POLLARD, “Adhesion”, Ed. K. Allen (Applied Science Publishers Ltd., London, 1977) Chpt. 3.Google Scholar
  4. 4.
    A. J. KINLOCH,J. Adhesion 10 (1979) 193.CrossRefGoogle Scholar
  5. 5.
    J. C. BOLGER, “Adhesion Aspects of Polymer Coatings”, Ed. K. L. Mittel (Plenum Press, New York, 1982) p. 3.Google Scholar
  6. 6.
    A. C. MOLONEY, “Surface Analysis and Pretreatments of Plastics and Metals”, Ed. D. M. Brewis (Applied Science Publishers Ltd., London, 1982) Chpt. 8.Google Scholar
  7. 7.
    H. W. EICHNER, Forest Products Laboratory Report 1842, Madison, April 1 (1954).Google Scholar
  8. 8.
    J. D. VENABLES, D. K. MCNAMARA, J. M. CHEN and T. S. SUN,Appl. Surface Sci.,3 (1979) 88.CrossRefGoogle Scholar
  9. 9.
    J. A. MARCEAU, R. H. FIRMINHAC and Y. MOJI, US Patent 4085012 (18 April 1978).Google Scholar
  10. 10.
    J. M. CHEN, T. S. SUN and J. D. VENABLES,Nat. SAMPLE Symp. Exhib. 22 (1978) 25.Google Scholar
  11. 11.
    G. D. DAVIS, T. S. SUN, J. S. AHEARN and J. D. VENABLES,J. Mat. Sci. 17 (1982) 1807.CrossRefGoogle Scholar
  12. 12.
    S. AFFROSSMAN, D. HAYWARD, R. A. PETHRICK and P. WILFORD,Nondestr. Test. Eval. 6 (1991) 45.CrossRefGoogle Scholar
  13. 13.
    B. C. LIPPENS, “Physical and Chemical Aspects of Adsorbents and Catalysts”, Ed. B. G. Linsen (Academic Press, New York, 1970) Chpt. 4.Google Scholar
  14. 14.
    R. H. BOYD, “Methods in Experimental Physics”, Ed. R. A. Fava (Academic Press Inc., New York, 1980)16 part C.Google Scholar
  15. 15.
    E. L. MURPHY and H. H. LOWRY,J. Phys. Chem. 34 (1930) 598.CrossRefGoogle Scholar
  16. 16.
    K. UMEYA and T. KANNO,Bull. Chem. Soc. J 46 (1973) 1660.CrossRefGoogle Scholar
  17. 17.
    J. B. HASTED, “Aqueous Dielectrics” (Chapman and Hall Ltd., London, 1973) Chpt. 9.Google Scholar
  18. 18.
    B. C. LIPPENS, “Physical and Chemical Aspects of Adsorbents and Catalysts”, Ed. B. G. Lisen (Academic Press, New York, 1970) Chapter 4.Google Scholar

Copyright information

© Chapman & Hall 1996

Authors and Affiliations

  • R. A. Pethrick
    • 1
  • D. Hayward
    • 1
  • K. Jeffrey
    • 1
  • S. Affrossman
    • 1
  • P. Wilford
    • 2
  1. 1.Department of Pure and Applied ChemistryUniversity of StrathclydeGlasgowUK
  2. 2.Royal Aerospace Establishment, Materials DivisionFarnboroughUK

Personalised recommendations