Sintering of copper-tungsten materials

  • V. A. Dymchenko
  • A. P. Popovich
Theory and Technology of Sintering, Thermal, and Chemicothermal Treatment Processes
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Conclusions

To protect the Cu matrix of copper-tungsten compacts against “hydrogen sickness,” the starting compact porosity should be kept close to 20%. Resintering is accompanied by an increase in specimen volume, which grows with rise in tungsten content. The increase in volume is brought about by reduction-oxidation processes. No reaction has been observed between the metallic components of the system.

Keywords

Hydrogen Porosity Tungsten Metallic Component Tungsten Content 

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Literature cited

  1. 1.
    “Electrical switching devices. Contact components in tungsten-base materials,” GOST 13333-75, Jan. 1, 1977.Google Scholar
  2. 2.
    I. M. Fedorchenko and R. A. Andrievskii, Principles of Powder Metallurgy [in Russian], Izd. Akad. Nauk Ukr. SSR, Kiev (1961).Google Scholar
  3. 3.
    V. A. Dymchenko and A. P. Popovich, “‘Hydrogen sickness’ of sintered copper,” Poroshk. Metall., No. 5, 25–28 (1983).Google Scholar

Copyright information

© Plenum Publishing Corporation 1985

Authors and Affiliations

  • V. A. Dymchenko
    • 1
  • A. P. Popovich
    • 1
  1. 1.Gorlovo BranchDonetsk Polytechnic InstituteUSSR

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