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Soviet Powder Metallurgy and Metal Ceramics

, Volume 4, Issue 11, pp 891–895 | Cite as

The sinterability of chromium powder

  • I. M. Fedorchenko
  • S. M. Solonin
Theory and Technology of Sintering, Heat Treatment, and Chemicothermal Treatment Processes

Summary

  1. 1.

    Chromium compacts with a porosity suitable for filtering applications can be obtained by pressing the starting powder with an addition of 4% paraffin wax.

     
  2. 2.

    Firm packing of specimens in a fine alumina filling material protects the chromium against oxidation during sintering in moderately dried hydrogen.

     
  3. 3.

    During the sintering of chromium with a paraffin-wax addition to the charge, the rate of heating to the isothermal holding temperature may exert a substantial influence on the shrinkage of compacts.

     
  4. 4.

    During the sintering of chromium with a paraffin wax addition to the charge, the sintering process may become activated as a result of the reduction of oxides by the carbon black formed, leading to increased shrinkage compared with pure chromium.

     
  5. 5.

    Both pure chromium and chromium with a paraffin wax addition to the charge exhibit good sinterability at temperatures of 1373–1473°K.

     

Keywords

Oxidation Alumina Porosity Chromium Shrinkage 
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.
    B. A. Borok, R. P. Shchegoleva, L. S. Golubeva, B. P. Lobashev, and V. I. Zheleznyak, Preparation and Application of Chromium Powder to the Manufacture of Sintered Parts [in Russian], TsITÉIN (1961), No. 5.Google Scholar
  2. 2.
    R. A. Andrievskii and S. M. Solonin, Poroshkovaya Met., 3, 32 (1964).Google Scholar
  3. 3.
    A. M. Samarin and A. A. Vertman, Tr. Inst. Met. im. Baikova, 1, 60 (1957).Google Scholar
  4. 4.
    G. V. Samsonov and T. Ya. Kosolapova, Zh. Prikl. Khim., 12, 34 (1961).Google Scholar
  5. 5.
    A. Sully, Chromium [Russian translation], Moscow, Metallurgizdat (1958).Google Scholar
  6. 6.
    G. V. Samsonov, Refractory Compounds [in Russian], Moscow, Metallurgizdat (1963).Google Scholar

Copyright information

© Consultants Bureau 1966

Authors and Affiliations

  • I. M. Fedorchenko
    • 1
  • S. M. Solonin
    • 1
  1. 1.Institute of Materials ProblemsAcademy of SciencesUkrainian SSR

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