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Soviet Powder Metallurgy and Metal Ceramics

, Volume 13, Issue 9, pp 717–720 | Cite as

Processes taking place in nickel powder compacts during continuous heating in a vacuum

  • Yu. M. Litvinenko
  • V. V. Skorokhod
  • Yu. F. Yurchenko
Theory and Technology of Sintering, Thermal, and Chemicothermal Treatment Processes
  • 12 Downloads

Conclusions

  1. 1.

    X-ray diffraction and calorimetric data show that the recrystallization of nickel sintered at 1200°C and deformed is no different from that of cast and deformed nickel of the same purity.

     
  2. 2.

    The thermal effects observed during the heating of compacts from carbonyl and reduced nickel powders are much more pronounced than those characterizing the heating of deformed nickel. Apart from this, powder compacts exhibit high-temperature regions of heat evolution which are totally absent in the case of deformed nickel.

     
  3. 3.

    From x-ray diffraction data, it follows that, with compacts, slower completion of recrystallization processes is observed in the temperature range 600–1100°C, i.e., after primary recrystallization, as revealed by calorimetric data.

     

Keywords

Nickel Recrystallization Carbonyl Powder Compact Thermal Effect 
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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Copyright information

© Plenum Publishing Corporation 1975

Authors and Affiliations

  • Yu. M. Litvinenko
    • 1
    • 2
  • V. V. Skorokhod
    • 1
    • 2
  • Yu. F. Yurchenko
    • 1
    • 2
  1. 1.Institute of Materials ScienceAcademy of Sciences of the Ukrainian SSRUkraine
  2. 2.Institute of Metal PhysicsAcademy of Sciences of the Ukrainian SSRUkraine

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