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Journal of Materials Science

, Volume 29, Issue 16, pp 4300–4305 | Cite as

Carbothermic reduction as a potential means for the direct production of Fe-WC and Fe-TaC, NbC metal-matrix composites

  • B. S. Terry
  • D. C. Azubike
  • A. Chryanthou
Papers

Abstract

The carbothermic reduction of wolframite and columbite ores has been studied as a means of direct production of Fe-WC and Fe-TaC/NbC composite materials. In both cases reduction with graphite at 1600°C produces a good dispersion of carbides in an austenitic iron matrix. Gangue oxide materials appear to separate, largely as a slag phase. Some residual porosity has however been found in the product materials.

Keywords

Oxide Iron Polymer Porosity Graphite 
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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References

  1. 1.
    H. E. Exner, Int. Met. Rev. 4 (1979) 149.Google Scholar
  2. 2.
    G. Agte, Neue Hutte 2 (1957) 537.Google Scholar
  3. 3.
    D. Moskowitz, in “Modern Developments in Powder Metallurgy”, Vol. 10 (1977) p. 543.Google Scholar
  4. 4.
    B. S. Terry and D. C. Azubike, Trans. IMM 99C (1990) 175.Google Scholar
  5. 5.
    B. S. Terry and O. S. Chinyamakobvu, Mater. Sci. Tech. 8 (1992) 399.CrossRefGoogle Scholar
  6. 6.
    Idem, ibid. 7 (1991) 842.CrossRefGoogle Scholar

Copyright information

© Chapman & Hall 1994

Authors and Affiliations

  • B. S. Terry
    • 1
  • D. C. Azubike
    • 1
  • A. Chryanthou
    • 1
  1. 1.Department of MaterialsImperial CollegeLondonUK

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