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Surface Charge-Dependent Mechanical Behavior of Non-Metals

  • N. H. Macmillan
  • A. R. C. Westwood
Part of the Materials Science Research book series (MSR, volume 7)

Abstract

The fact that chemisorbed, surface active species can significantly influence the microhardness of certain minerals was first noted by P. A. Rebinder in 19281. Subsequent studies2 established that such changes in hardness persist to depths of about 10 μm in a typical inorganic nonmetal, and that their magnitude depends not only on the environment but also on the type of bonding in the solid, the crystallographic orientation of the surface, the concentration and state of ionization of impurities in the solid, the magnitude and duration of the applied load, the temperature, the intensity of illumination incident upon the specimen, and on any potential applied to it. Recent studied have revealed useful correlation between environment-sensitive hardness and the ς-potential of the solid, i.e., the hardness of all inorganic nonmetals and glasses examined was greatest when ς ≃ 02. This “ς-correlation,” first noted for AgBr in aqueous bromide and AgI in aqueous iodide environments3, has now been established by Westwood and coworkers for Al2O3 in aqueous NaOH and the n-alcohols4; calcite in aqueous NaOH and HNO3 5; quartz in buffered and unbuffered aqueous Al(NO3)3 6; and soda-lime (s. 1.) glass in aqueous KCl7, Th(NO3)4 7 and dodecyl trimethyl ammonium bromide (DTAB) solutions, in n-alcohols2, and in solutions of KI in isopropyl alcohol2. It is possible that the “ς-correlation” is a property generic to inorganic nonmetals, both crystalline and noncrystalline. Figs. 1 and 2 provide examples of this correlation for quartz in aqueous Al(NO3)3 and glass in n-alcohols.

Keywords

Chip Formation Drilling Rate Dislocation Mobility Dodecyl Trimethyl Ammonium Bromide Westerly Granite 
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.

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References

  1. 1.
    P. A. Rebinder, Proc. 6th Physics Conf., Moscow, 29 (1928).Google Scholar
  2. 2.
    A. R. C. Westwood and N. H. Macmillan, The Science of Hardness Testing, Am. Soc. Metals, Cleveland, Ohio, in press (1973).Google Scholar
  3. 3.
    R. W. Heins and N. Street, Soc. Pet. Eng. J., 5, 177 (1965).Google Scholar
  4. 4.
    A. R. C. Westwood, N. H. Macmillan and R. S. Kalyoncu, J. Am. Ceram. Soc., 56, 258 (1973).CrossRefGoogle Scholar
  5. 5.
    A. R. C. Westwood and N. H. Macmillan, Rept. to U. S. Geol. Survey on Contract No. 14-08-0001-13077 (Jan. 1973).Google Scholar
  6. 6.
    A. R. C. Westwood, N. H. Macmillan and R. S. Kalyoncu, Trans. AIME (Mining), in press (1973).Google Scholar
  7. 7.
    A. R. C. Westwood and R. D. Huntington, Mech. Behavior of Materials, Soc. Matls. Sci., Japan, IV, 383 (1972).Google Scholar
  8. 8.
    A. M. Gaudin and D. W. Fuerstenau, Trans. AIME, 202, 66 (1955).Google Scholar
  9. 9.
    A. R. C. Westwood, G. H. Parr, Jr. and R. M. Latanision, Amorphous Materials, Wiley, London, 153 (1972).Google Scholar
  10. 10.
    A. R. C. Westwood, H. Opperhauser, Jr., and D. L. Goldheim, Phil. Mag., 6, 1475 (1961).Google Scholar
  11. 11.
    A. R. C. Westwood, Phil. Mag., 7, 633 (1961).Google Scholar
  12. 12.
    A. R. C. Westwood, D. L. Goldheim and R. G. Lye, Phil. Mag., 16, 505 (1967).Google Scholar
  13. 13.
    A. R. C. Westwood, D. L. Goldheim and R. G. Lye, Phil. Mag., 17, 951 (1968).Google Scholar
  14. 14.
    A. R. C. Westwood and D. L. Goldheim, J. Appl. Phys., 39, 3401 (1968).Google Scholar
  15. 15.
    N. H. Macmillan, R. D. Huntington and A. R. C. Westwood, Phil. Mag., in press (1973).Google Scholar
  16. 16.
    A. R. C. Westwood, R. D. Huntington and N. H. Macmillan, submitted for publication (1973).Google Scholar
  17. 17.
    McD. Robinson, J. A. Pask and D. W. Fuerstenau, J. Am. Ceram. Soc., 47, 516 (1964).CrossRefGoogle Scholar
  18. 18.
    K. Inabe, K. Emoto, K. Sakamaki and N. Takeuchi, Jap. J. Appl. Phys., 11, 1743 (1972).CrossRefGoogle Scholar
  19. 19.
    S. M. Cox, Phys. and Chem. Glasses, 10, 226 (1969).Google Scholar
  20. 20.
    W. G. Johnston, J. Appl. Phys., 33, 2716 (1962).CrossRefGoogle Scholar
  21. 21.
    B. J. Wicks and M. H. Lewis, Phys. Stat. Solidi (a), 6, 281 (1971).CrossRefGoogle Scholar
  22. 22.
    R. A. Huggins, Rept. of 1971 ARPA Materials Conf., Woods Hole, Mass., Univ. of Michigan, Ann Arbor, 1, 136 (1972).Google Scholar
  23. 23.
    J. H. Konnert, J. Karle and G. A. Ferguson, Science, 179, 177 (1973).CrossRefGoogle Scholar
  24. 24.
    J. J. Gilman, J. Appl. Phys., 44, 675 (1973).CrossRefGoogle Scholar
  25. 25.
    M. F. Ashby and J. Logan, Scripta Met., 7, 513 (1973).CrossRefGoogle Scholar
  26. 26.
    P. A. Rebinder, L. A. Schreiner and K. F. Zhigach, Hardness Reducers in Rock Drilling, C. S. I. R. O., Melbourne (1948).Google Scholar
  27. 27.
    A. R. C. Westwood and R. M. Latanision, The Science of Ceramic Machining and Surface Finishing, N. B. S. Special Publ. No. 348, 141 (1972).Google Scholar
  28. 28.
    A. R. C. Westwood and D. L. Goldheim, J. Am. Ceram. Soc., 53, 142 (1970).CrossRefGoogle Scholar
  29. 29.
    P. Somasundaran and G. E. Agar, J. Colloid and Interface Sci., 24, 433 (1967).CrossRefGoogle Scholar
  30. 30.
    B. von Turkovich and G. F. Micheletti, Proc. 9th Intl. Machine Tool Design and Research Conf., Pergamon, New York, 1073 (1969).Google Scholar
  31. 31.
    G. M. Hamilton and L. E. Goodman, J. Appl. Mech., 33, 371 (1966).CrossRefGoogle Scholar
  32. 32.
    R. A. Gortner, Trans. Faraday Soc., 36, 63 (1940).CrossRefGoogle Scholar
  33. 33.
    W. M. Mularie, M. S. Rosenthal and A. R. C. Westwood, unpublished work (1973).Google Scholar
  34. 34.
    F. P. Bowden and D. Tabor, The Friction and Lubrication of Solids, Oxford Univ. Press, Vol. 1 (Revised) (1954), Vol. II (1964).Google Scholar
  35. 35.
    A. R. C. Westwood, RIAS Proposal No. 386 (July 1971).Google Scholar
  36. 36.
    N. H. Macmillan, R. D. Huntington and A. R. C. Westwood, submitted for publication (1973).Google Scholar
  37. 37.
    N. H. Macmillan and A. R. C. Westwood, to be published (1973).Google Scholar
  38. 38.
    A. G. Evans, J. Mat. Sci., 7, 1137 (1972).CrossRefGoogle Scholar
  39. 39.
    W. B. Hardy and I. Doubleday, Proc. Roy. Soc., A100, 550 (1922).Google Scholar

Copyright information

© Plenum Press, New York 1974

Authors and Affiliations

  • N. H. Macmillan
    • 1
  • A. R. C. Westwood
    • 1
  1. 1.Martin Marietta LaboratoriesBaltimoreUSA

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