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Journal of Materials Science

, Volume 26, Issue 13, pp 3628–3638 | Cite as

Case study of dry mixing of δ-alumina (‘Saffil’) and silicon carbide (‘Nicalon’) fibres with a rapidly solidified Al-20Si-X powder

  • J. H. ter Haar
  • J. Duszczyk
Papers

Abstract

Dry mixing of δ-alumina and SiC short fibres with a powder metallurgy processed aluminium alloy was performed aiming to provide a homogeneous powder material for subsequent consolidation. The major problem was to deagglomerate the clustered fibres, realizing that fibre aspect ratio should not be sacrificed to too large an extent during this first processing step. The mixing was tackled by co-processing the materials in a cylindrical tumbler operating either with or without ceramic balls. This comes down to applying two differing intensities of mechanical action. Particle size, shape, hardness and specific surface area of the materials were measured after ball milling, which was a successful deagglomeration process only for the δ-alumina fibre.

Keywords

Silicon Carbide Milling Aspect Ratio Specific Surface 
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.
    A. P. Divecha, S. G. Fishman andS. D. Karmarkar,J. Metals September33 (1981) 12.Google Scholar
  2. 2.
    C. J. Skowronek, A. Pattnaik andR. K. Everett, “Dispersion and blending of SiC whiskers in RSP Aluminium Powders”, Report NRL-MR-5750 (Naval Research Laboratory, Washington, 1986) p. 699.Google Scholar
  3. 3.
    M. McLean andR. Dower, in “Proceedings of the International Conference on Powder Metallurgy”, Vol. 2, London, July 1990 (The Institute of Metals, London, 1990) p. 251.Google Scholar
  4. 4.
    Y. L. Liu, N. Hansen, D. Juul Jensen, H. Lilholt, P. Nielsen andN. J. Fei, in “Proceedings of the Powder Metallurgy Conference”, Vol. 3, San Diego, California, June 1989, edited by T. G. Gasbarre and W. F. Jandeska, MPIF/APMI (Princeton, New Jersey, 1989) p. 461.Google Scholar
  5. 5.
    A. Dunning, N. J. E. Adkins andG. P. Yiasemides, in “Proceedings of the International Conference on Powder Metallurgy”, Vol. 2, London, July 1990 (The Institute of Metals, London, 1990) p. 298.Google Scholar
  6. 6.
    A. K. Kuruvilla, V. V. Bhanuprasad, K. S. Prasad andY. R. Mahajan,Bull. Mater. Sci. 12 (1989) 495.CrossRefGoogle Scholar
  7. 7.
    D. L. McDanels,Met. Trans. A 16 (1985) 1105.CrossRefGoogle Scholar
  8. 8.
    R. J. Dower andM. McLean,Int. J. Powder Metall. 26 (1990) 69.Google Scholar
  9. 9.
    J. Dinwoodie andI. Horsfall, in “Proceedings of the Sixth ICCM & ECCM”, Vol. 2, London 1987, edited by F. L. Matthews, N. C. R. Buskell, J. M. Hodgkinson and J. Morton, (Elsevier Applied Science, London, 1987) p. 2.390.Google Scholar
  10. 10.
    M. Gupta, F. Mohamed andE. Lavernia, in “Metal and Ceramic Matrix Composites: Processing, Modelling and Mechanical Behaviour”, edited by R. B. Bhagat, A. H. Clauer, P. Kumar and A. M. Ritter (The Minerals, Metals and Materials Society, Warrendale, PA, 1990) p. 91.Google Scholar
  11. 11.
    R. M. German andA, Bose,Mater. Sci. Engng A107 (1989) 107.CrossRefGoogle Scholar
  12. 12.
    J. R. Porter,ibid. A107 (1989) 127.CrossRefGoogle Scholar
  13. 13.
    J. M. Yang, W. H. Kao andC. T. Liu,ibid. A107 (1989) 81.CrossRefGoogle Scholar
  14. 14.
    J. C. Williams,Powder Technol. 15 (1976) 245.CrossRefGoogle Scholar
  15. 15.
    J. L. Estrada andJ. Duszczyk,J. Mater. Sci. 25 (1990) 886.CrossRefGoogle Scholar
  16. 16.
    T. W. Clyne, M. G. Bader, G. R. Cappleman andP. A. Hubert,ibid. 20 (1985) 85.CrossRefGoogle Scholar
  17. 17.
    G. Simon andA. R. Bunsell,ibid. 19 (1984) 3649.CrossRefGoogle Scholar
  18. 18.
    L. G. Austin, R. R. Klimpel andP. T. Luckie, “Process Engineering of Size Reduction: Ball Milling”, Society of Mining Engineers, New York, 1984.Google Scholar
  19. 19.
    H. E. Rose andR. M. E. Sullivan, “A Treatise on the Mechanics of Ball, Tube and Rod Mills” (Chemical Publishing Company, New York, 1958).Google Scholar
  20. 20.
    J. H. Ter Haar andJ. Duszczyk,Mater. Sci. Engng A, 131 (1991) in press.Google Scholar
  21. 21.
    G. Herdan, “Small Particle Statistics” (Butterworth, London, 1960).Google Scholar
  22. 22.
    C. A. Stanford-Beale andT. W. Clyne,Comp. Sci. Technol. 35 (1989) 121.CrossRefGoogle Scholar
  23. 23.
    K. K. Chawla, “Composite Materials; Science and Engineering” (Springer Verlag, New York, 1987).Google Scholar

Copyright information

© Chapman and Hall Ltd. 1991

Authors and Affiliations

  • J. H. ter Haar
    • 1
  • J. Duszczyk
    • 1
  1. 1.Laboratory of Materials ScienceDelft University of TechnologyAL, DelftThe Netherlands

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