Skip to main content
SpringerLink
Log in

Effect of milling in various media on the composition and some properties of niobium carbide

  • Published:
Soviet Powder Metallurgy and Metal Ceramics Aims and scope

Conclusions

Comminution of carbides in various media which do not prevent the well-developed surfaces of their particles from coming into contact with water and oxygen leads to surface oxidation of these particles. This is reflected in the chemical composition of carbides, which almost continually changes during sintering in the usual temperature range, right up to 2200‡C, and in the densification kinetics and properties of carbide-base materials. Because of the instability of oxycarbides of the Group V metals in a vacuum at these temperatures, with the carbides “MevC” (NbC and TaC) the surface oxidation experienced by their particles during milling in certain dispersing media may have an activating effect on the sintering process and shift the composition of the carbides toward the lower limits of their homogeneity ranges.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

Literature cited

  1. A. I. Avgustinik, G. V. Drozdetskaya, and S. S. Ordan'yan, Poroshk. Met., No. 6 (1967).

  2. A. I. Avgustinik, G. V. Drozdetskaya, and S. S. Ordan'yan, Izv. Vyssh. Uchebn. Zaved., Khim. i Khim. Tekhnol.,14, No. 11, 1717 (1971).

    Google Scholar 

  3. E. Storms, Refractory Carbides, Academic Press (1967).

  4. S. S. Ordan'yan, K. N. Egorov, and I. A. Matusov, Poroshk. Met., No. 4 (1970).

  5. B. J. Warren, in: Advances in Metal Physics [Russian translation], Vol. 5, Moscow (1963), p. 172.

    Google Scholar 

  6. G. V. Drozdetskaya, Candidate's Dissertation, Leningrad (1968).

  7. G. V. Zakharova, I. A. Popov, L. P. Zhorova, and B. V. Fedin, Niobium and Its Alloys [in Russian], Metallurgizdat, Moscow (1961), p. 20.

    Google Scholar 

  8. S. S. Ordan'yan, L. V. Kudryasheva, and A. I. Avgustinik, Poroshk. Met., No. 8 (1968).

Download references

Author information

Authors and Affiliations

  1. Lensovet Leningrad Technological Institute, USSR

    S. S. Ordan'yan, G. A. Savel'ev, A. E. Kravchik & V. S. Neshpor

Authors
  1. S. S. Ordan'yan
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. G. A. Savel'ev
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. A. E. Kravchik
    View author publications

    You can also search for this author in PubMed Google Scholar

  4. V. S. Neshpor
    View author publications

    You can also search for this author in PubMed Google Scholar

Additional information

Translated from Poroshkovaya Metallurgiya, No. 2(170), pp. 23–28, February, 1977.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Ordan'yan, S.S., Savel'ev, G.A., Kravchik, A.E. et al. Effect of milling in various media on the composition and some properties of niobium carbide. Powder Metall Met Ceram 16, 100–103 (1977). https://doi.org/10.1007/BF00793782

Download citation

  • Received:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF00793782

Keywords

Search

Navigation