Skip to main content
SpringerLink
Log in

Magnetic properties of Co−Nb and Co−Nb−Fe unidirectionally solidified eutectic composites

  • Published:
Metallurgical Transactions Aims and scope Submit manuscript

Abstract

Eutectic composites of Co−Nb and Co−Nb−Fe were produced by unidirectional solidification. The structure consisted of aligned lamellae of NbCo3 in a stabilized fcc cobalt-rich matrix. NbCo3 lowered saturation induction, following a simple volume law of mixtures. Niobium in solid solution lowered both the saturation induction and the Curie temperature, whereas iron in solid solution raised the saturation induction while lowering the Curie temperature. A minimum in coercive force (H app parallel to growth direction) occurred near 8 at. pct Fe, attributable to a minimum in |K 1| for this composition.

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

References

  1. J. B. Goodenough:Phys. Rev. 1954, vol. 95, pp. 917–32.

    Article  CAS  Google Scholar 

  2. W. D. Nix and R. A. Huggins:Phys. Rev. 1964, vol. 135, pp. A401–7.

    Article  Google Scholar 

  3. F. P. Levi:J. Appl. Phys. 1960, vol. 31, pp. 1469–71.

    Article  Google Scholar 

  4. F. E. Luborsky:J. Appl. Phys. 1961, vol. 32, pp. 171S-83S.

    Article  Google Scholar 

  5. A. C. Beiler:J. Appl. Phys. 1967, vol. 38, pp. 1161–67.

    Article  CAS  Google Scholar 

  6. K. Detert:Trans. ASM, 1966, vol. 59, pp. 262–76.

    CAS  Google Scholar 

  7. R. J. Towner, D. M. Pavlovic, K. Detert and A. S. Bufferd:J. Appl. Phys., 1968, vol. 39, pp. 601–3.

    Article  CAS  Google Scholar 

  8. R. J. Towner and D. M. Pavlovic:J. Appl. Phys. 1969, vol. 40, pp. 1583–85.

    Article  CAS  Google Scholar 

  9. D. A. Colling:J. Appl. Phys. 1968, vol. 39, pp. 606–7.

    Article  CAS  Google Scholar 

  10. D. M. Pavlovic, R. J. Towner, J. J. Clark and R. A. Lindberg:Science of Advanced Materials and Process Engineering Series 1968, vol. 14, Paper.

    Google Scholar 

  11. R. Kossowsky and D. A. Colling:Science of Advanced Materials and Process Engineering Series 1969, vol. 15, pp. 491–500.

    Google Scholar 

  12. D. L. Albright, G. P. Conard II, and R. W. Kraft:J. Appl. Phys. 1967, vol. 38, pp. 2919–23.

    Article  CAS  Google Scholar 

  13. J. Livingston:J. Appl. Phys. 1970, vol. 41, pp. 197–204.

    Article  CAS  Google Scholar 

  14. G. Heimke, U. S. Patent 3,434,892, March 25, 1969.

  15. R. Kossowsky, W. C. Johnston and B. J. Shaw:Trans. TMS-AIME, 1969, vol. 245, pp. 1219–25.

    CAS  Google Scholar 

  16. A. T. Aldred:J. Appl. Phys. 1966, vol. 37, pp. 671–4.

    Article  CAS  Google Scholar 

  17. R. M. Bozorth:Ferromagnetism, 1st ed., p. 719, D. Van Nostrand Co., Inc., New York, 1951.

    Google Scholar 

  18. J. K. Pargeter and W. Hume-Rothery:J. Less-Common Metals 1967, vol. 12, pp. 366–74.

    Article  CAS  Google Scholar 

  19. S. Chikazumi:Physics of Magnetism, 1st ed., p. 73, John Wiley and Sons, Inc., Inc., New York, 1964.

    Google Scholar 

  20. R. M. Bozorth:Ferromagnetism, 1st ed., p. 8, D. Van Nostrand Co., Inc., New York, 1951.

    Google Scholar 

  21. L. C. Headley and A. S. Pavlovic:J. Appl. Phys. 1970, vol. 41, pp. 1026–7.

    Article  CAS  Google Scholar 

  22. A. S. Pavlovic: University of West Virginia, private communication.

  23. R. M. Bozorth:Ferromagnetism, 1st ed., p. 582, D. Van Nostrand Co., Inc., New York, 1951.

    Google Scholar 

  24. M. Hansen:Constitution of Binary Alloys, 2nd ed., p. 472, McGraw-Hill Book Co., Inc., New York, 1958.

    Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Magnetics Department, Westinghouse Research Laboratories, Pittsburgh, Pa.

    D. A. Colling

  2. Materials Science Department, Westinghouse Research Laboratories, Pittsburgh, Pa.

    Ram Kossowsky

Authors
  1. D. A. Colling
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. Ram Kossowsky
    View author publications

    You can also search for this author in PubMed Google Scholar

Rights and permissions

Reprints and permissions

About this article

Cite this article

Colling, D.A., Kossowsky, R. Magnetic properties of Co−Nb and Co−Nb−Fe unidirectionally solidified eutectic composites. Metall Trans 2, 1523–1527 (1971). https://doi.org/10.1007/BF02913873

Download citation

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF02913873

Keywords

Search

Navigation