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Soviet Powder Metallurgy and Metal Ceramics

, Volume 11, Issue 4, pp 272–275 | Cite as

Effect of composition on the sintering shrinkage of two-phase systems

  • I. M. Fedorchenko
  • I. I. Ivanova
Theory and Technology of the Component Formation Process and Chemicothermal Treatment Processes
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Conclusions

  1. 1.

    In the sintering of powders of metals which exhibit unlimited intersolubility and have a single-phase solid solution structure at the sintering temperature, a correlation is found between the concentration dependence of shrinkage and the variation of diffusion parameters (diffusion coefficients or energy of activation for diffusion). As the energy of activation for diffusion increases, the shrinkage decreases, and vice versa.

     
  2. 2.

    In the sintering of powders of metals showing a limited intersolubility, the concentration dependence of shrinkage is determined by the properties of the phases forming during sintering in accordance with the constitution diagram of the metals involved in the process. With rise in the amount of the less deformable phase, the shrinkage decreases; conversely, as the amount of the more deformable phase is raised, the shrinkage increases. It would appear that here, as in the sintering of systems showing unlimited intersolubility, the variation of shrinkage with concentration is determined by the concentration dependence of the diffusion processes taking place in the system.

     

Keywords

Solid Solution Shrinkage Diffusion Coefficient Diffusion Process Sinter Temperature 
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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Literature cited

  1. 1.
    I. M. Fedorchenko and I. I. Ivanova, in: H. H. Hausner (editor), Modern Developments in Powder Metallurgy, Proceedings of the 1965 International Powder Metallurgy Conference, Vol. 2, Plenum Press, New York (1966), p. 45.Google Scholar
  2. 2.
    I. M. Fedorchenko and I. I. Ivanova, Poroshkovaya Met., No. 12, 23 (1969).Google Scholar
  3. 3.
    I. M. Fedorchenko, I. I. Ivanova, and O. I. Fushchich, Poroshkovaya Met., No. 1, 30 (1970).Google Scholar
  4. 4.
    I. M. Fedorchenko, I. I. Ivanova, and O. I. Fushchich, Poroshkovaya Met., No. 2, 14 (1970).Google Scholar
  5. 5.
    M. Hansen and K. P. Anderko, Constitution of Binary Alloys, McGraw-Hill, New York (1957).Google Scholar
  6. 6.
    K. J. Hirano, R. P. Agarwala, and M. Cohen, J. Appl. Phys.,33, 10 (1962).Google Scholar
  7. 7.
    B. Ya. Pines and A. F. Sirenko, Zh. Tekh. Fiz.,26, No. 10, 2378 (1956).Google Scholar
  8. 8.
    B. Ya. Pines and N. I. Sukhinin, Zh. Tekh. Fiz.,26, No. 9, 2100 (1956).Google Scholar
  9. 9.
    O. Takesi, Radioisotopes,15, 4 (1966).Google Scholar
  10. 10.
    W. Seith, Diffusion in Metallen, Springer.Google Scholar
  11. 11.
    I. I. Kornilov and I. O. Panasyuk, Izv. Sektora Fiz.-Khim. Analiza, Izd. Akad. Nauk SSSR,27, 164 (1956).Google Scholar

Copyright information

© Consultants Bureau, a division of Plenum Publishing Corporation 1972

Authors and Affiliations

  • I. M. Fedorchenko
    • 1
  • I. I. Ivanova
    • 1
  1. 1.Institute of Materials ScienceAcademy of Sciences of the Ukrainian SSRUkraine

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