Synthesis and Densification of Nanomaterials by Mechanical and Field Activation

  • Z. A. Munir
Article

Abstract

The use of mechanical and electric field activation to simultaneously synthesize and densify nanomaterials was investigated. Dense nanostructured MoSi2 and TiN-TiB2 nanocomposites were made by this method. The role of the parameters of mechanical activation (milling) and those of field activation on the process of formation of dense nanomaterials was studied. For the TiN–TiB2 system, up to 97.2% dense nanocomposites were synthesized with microhardness and fracture toughness values of 21.8 GPa and 5.13 MPa•m1/2, respectively.

Dense nanomaterials synthesis field-activation molybdenum disilicide TiN-TiB2 nanocomposites 

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REFERENCES

  1. 1.
    R. B. Schwarz, S. R. Srinivasan, J. J. Petrovic, and C. J. Maggiore, Mater. Sci. Eng. A 155, 75 (1992).Google Scholar
  2. 2.
    H. Hahn and K. A. Padmanabhan, Phil. Mag. B 76, 559 (1997).Google Scholar
  3. 3.
    Z. A. Munir, F. Charlot, F. Bernard, and E. Gaffet, U.S. Patent Application Serial No. 09/374,049; August 13, 1999.Google Scholar
  4. 4.
    A. Feng and Z. A. Munir, Metall. Trans. 26B, 587 (1995).Google Scholar
  5. 5.
    S. Gedevanishvili and Z. A. Munir, J. Mater. Res. 10, 2642 (1995).Google Scholar
  6. 6.
    H. Xue and Z. A. Munir, J. Eur. Ceram. Soc. 17, 1787 (1997).Google Scholar
  7. 7.
    Z. A. Munir, I. J. Shon, and K. Yamazaki, US Patent No. 5,794,113, August 11, 1998.Google Scholar
  8. 8.
    I. J. Shon, Z. A. Munir, K. Yamazaki, and K. Shoda, J. Amer. Ceram. Soc. 79, 1875 (1996).Google Scholar
  9. 9.
    A. Feng, T. Orling, and Z. A. Munir, J. Mater. Res. 14, 925 (1999).Google Scholar
  10. 10.
    H. Kaga, E. M. Carrillo-Heian, Z. A. Munir, C. Schmalzried, and R. Relle, J. Amer. Ceram. Soc., 84, 962 (2001).Google Scholar
  11. 11.
    E. M. Carrillo-Heian, R. D. Carpenter, G. H. Paulino, J. C. Gibeling, and Z. A. Munir, J. Amer. Ceram. Soc., 84, 962 (2001).Google Scholar
  12. 12.
    Z. A. Munir, Z. Phys. Chem. 207, 39 (1998).Google Scholar
  13. 13.
    Z. A. Munir, Mater. Sci. Eng. A 287, 125 (2000).Google Scholar
  14. 14.
    A. Feng and Z. A. Munir, Metall. Trans. 26B, 581 (1995).Google Scholar
  15. 15.
    A. Feng, O. A. Graeve, and Z. A. Munir, Comp. Mater. Sci. 12, 137 (1998).Google Scholar
  16. 16.
    H. B. Huntington, in Diffusion in Solids, A. S. Nowick and J. J. Burton, eds. (Academic Press, New York, 1975), pp. 303–352.Google Scholar
  17. 17.
    N. Bertolino, J. Garay, U. Anselmi-Tamburini, and Z. A. Munir, Scripta Mater., 44, 737 (2001).Google Scholar
  18. 18.
    M. Tokita, Proceedings of the NEDO International Symposium on Functionally Graded Materials, Tokyo, Japan, October 21–22 (1999), pp. 23–33.Google Scholar
  19. 19.
    R. Orru, J. Woolman, G. Cao, and Z. A. Munir, J. Mater. Res., 16, 1 (2000).Google Scholar
  20. 20.
    J. W. Lee, Z. A. Munir, M. Shibuya, and M. Ohyanagi, J. Amer. Ceram. Soc., 84, (2001).Google Scholar
  21. 21.
    C. Gras, F. Charlot, E. Gaffet, F. Bernard et al., Acta Mater. 47, 2113 (1999).Google Scholar
  22. 22.
    G. K. Williamson and W. H. Hall, Acta Metall. 1, 22 (1953).Google Scholar
  23. 23.
    J. I. Langford, in Accuracy in Powder Diffraction II, E. Prince and J. K. Stalick, eds. (NIST Publ., 1992). pp. 110–126 (1992). Organized by Commission on Power Diffraction of the International Union, Gaithersburg, MD.Google Scholar
  24. 24.
    R. Orru, T. Holland, G. Cao, and Z. A. Munir, unpublished work (2001).Google Scholar
  25. 25.
    S. Doppiu, M. Monagheddu, G. Cocco, F. Maglia, U. Anselmi-Tamburini, and Z. A. Munir, J. Mater. Res., 16, 1266 (2001).Google Scholar
  26. 26.
    E. Ma, J. Pagan, G. Cranford, and M. Atzmon, J. Mater. Res., 8, 1836 (1993).Google Scholar
  27. 27.
    B. K. Yen, J. Appl. Phys. 81, 7061 (1997).Google Scholar
  28. 28.
    P. Y. Lee, T. R. Chen, J. L. Yang, and T. S. Chin, Mater. Sci. Eng. A, 192 /193, 556 (1995).Google Scholar

Copyright information

© Plenum Publishing Corporation 2000

Authors and Affiliations

  • Z. A. Munir
    • 1
  1. 1.Facility for Advanced Combustion Synthesis (FACS), Department of Chemical Engineering and Materials ScienceUniversity of CaliforniaDavis

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