Metallurgical and Materials Transactions A

, Volume 39, Issue 7, pp 1496–1505 | Cite as

Low-Temperature Processing of ZrB2-ZrC Composites by Reactive Hot Pressing

  • Lingappa Rangaraj
  • Siriyara J. Suresha
  • Canchi Divakar
  • Vikram Jayaram
Symposium: Materials Behavior: Far From Equilibrium

Abstract

Dense ZrB2-ZrC and ZrB2-ZrCx∼0.67 composites have been produced by reactive hot pressing (RHP) of stoichiometric and nonstoichiometric mixtures of Zr and B4C powders at 40 MPa and temperatures up to 1600 °C for 30 minutes. The role of Ni addition on reaction kinetics and densification of the composites has been studied. Composites of ∼97 pct relative density (RD) have been produced with the stoichiometric mixture at 1600 °C, while the composite with ∼99 pct RD has been obtained with excess Zr at 1200 °C, suggesting the formation of carbon deficient ZrC x that significantly aids densification by plastic flow and vacancy diffusion mechanism. Stoichiometric and nonstoichiometric composites have a hardness of ∼20 GPa. The grain sizes of ZrB2 and ZrCx∼0.67 are ∼0.6 and 0.4 μm, respectively, which are finer than those reported in the literature.

Notes

Acknowledgments

The work that has been reported is a result of support from Director, NAL, Head, Materials Science Division, NAL, and a grant to the Indian Institute of Science from the Defence Research and Development Organization. The authors are indebted to Messrs. V. Babu and P.M. Jaman for assistance in hot pressing experiments, Dr. S. Usha Devi for XRD measurements, and Dr. G.S. Avadhani and Mr. Keshab Barai for their assistance in the SEM work.

References

  1. 1.
    K. Upadhya, J.M. Yang, W.P. Hoffman: Am. Ceram. Soc. Bull., 1997, vol. 76 (12), pp. 51–56Google Scholar
  2. 2.
    F. Monteverde, S. Guicciardi, A. Bellosi: Mater. Sci. Eng. A, 2003, vol. A346 (1–2), pp. 310–19Google Scholar
  3. 3.
    C. Mroz: Am. Ceram. Soc. Bull., 1995, vol. 74 (6), pp. 164–66Google Scholar
  4. 4.
    C.C. Sorrell, H.R. Beratan, R.C. Bradt, V.S. Stubican: J. Am. Ceram. Soc., 1984, vol. 67 (3), pp. 190–94CrossRefGoogle Scholar
  5. 5.
    C.C. Sorrell, V.S. Stubican, R.C. Bradt: J. Am. Ceram. Soc., 1986, vol. 69 (4), pp. 317–21CrossRefGoogle Scholar
  6. 6.
    W.B. Johnson, T.D. Claar, G.H. Schiroky: Ceram. Eng. Sci. Proc., 1989, vol. 10 (7–8), pp. 588–98Google Scholar
  7. 7.
    T.D. Claar, W.B. Johnson, C.A. Andersson, G.H. Schiroky: Ceram. Eng. Sci. Proc., 1989, vol. 10 (7–8), pp. 599–609CrossRefGoogle Scholar
  8. 8.
    W.B. Johnson, A.S. Nagelberg, E. Breval: J. Am. Ceram. Soc., 1991, vol. 74 (9), pp. 2093–101CrossRefGoogle Scholar
  9. 9.
    E. Breval, W.B. Johnson: J. Am. Ceram. Soc., 1992, vol. 75 (8), pp. 2139–45CrossRefGoogle Scholar
  10. 10.
    S.K. Woo, C.H. Kim, E.S. Kang: J. Mater. Sci., 1994, vol. 29, pp. 5309–15CrossRefGoogle Scholar
  11. 11.
    T. Tsuchida, S. Yamamoto: Solid State Ionics, 2004, vol. 172 (1–4), pp. 215–16CrossRefGoogle Scholar
  12. 12.
    T. Tsuchida, S. Yamamoto: J. Euro. Ceram. Soc., 2004, vol. 24, pp. 45–51CrossRefGoogle Scholar
  13. 13.
    F. Monteverde, A. Bellosi, S. Guicciardi: J. Euro. Ceram. Soc., 2002, vol. 22, pp. 279–88CrossRefGoogle Scholar
  14. 14.
    S.C. Zhang, G.E. Hilmas, W.G. Fahrenholtz: J. Am. Ceram. Soc., 2006, vol. 89 (5), 1550–54Google Scholar
  15. 15.
    K.H. Kim, K.B. Shim: Mater. Charact., 2003, vol. 50, pp. 31–37CrossRefGoogle Scholar
  16. 16.
    G.J. Zhang, M. Ando, J.F. Yang, T. Ohji, S. Kanzaki: J. Euro. Ceram. Soc., 2004, vol. 24, pp. 171–78CrossRefGoogle Scholar
  17. 17.
    M.W. Barsoum, A. Zavaliangos, S.R. Kalidindi, T. El-Raghy, D. Brodkin: JOM, 1995, vol. 47 (11), pp. 52–55Google Scholar
  18. 18.
    A.L. Chamberlain, W.G. Fahrenholtz, G.E. Hilmas: J. Am. Ceram. Soc., 2006, vol. 89 (12), pp. 3638–45CrossRefGoogle Scholar
  19. 19.
    L. Rangaraj, C. Divakar, V. Jayaram: J. Am. Ceram. Soc., 2004, vol. 87 (10), pp. 1872–78CrossRefGoogle Scholar
  20. 20.
    K. Wang, V.D. Kristic: Acta Mater., 2003, vol. 51, pp. 1809–19CrossRefGoogle Scholar
  21. 21.
    E.K. Storms: The Refractory Carbides, Academic Press, New York, NY, 1967, vol. 2, pp. 18–34Google Scholar
  22. 22.
    S.L. Dole, S. Prochazka, R.H. Doremus: J. Am. Ceram. Soc., 1989, vol. 72 (6), pp. 958–66CrossRefGoogle Scholar
  23. 23.
    S. Baik, P.F. Becher: J. Am. Ceram. Soc., 1987, vol. 70 (8), pp. 527–30CrossRefGoogle Scholar
  24. 24.
    A.L. Chamberlain, W.G. Fahrenholtz, G.E. Hilmas: J. Am. Ceram. Soc., 2006, vol. 89 (2), pp. 450–56CrossRefGoogle Scholar
  25. 25.
    S. Zhu, W.G. Fahrenholtz, G.E. Hilmas, S.C. Zhang: J. Am. Ceram. Soc., 2007, vol. 90 (11), pp. 3660–63CrossRefGoogle Scholar
  26. 26.
    D.B. Miracle, H.A. Lipsitt: J. Am. Ceram. Soc., 1983, vol. 66 (8), pp. 592–97CrossRefGoogle Scholar
  27. 27.
    D.J. Rowcliffe: Plastic Deformation of Transition Metal Carbides, Deformation of Ceramics II, Richard E. Tressler and Richard C. Bradt, eds., Plenum Publishing Corporation, New York, 1984, pp. 49–71Google Scholar
  28. 28.
    W.S. Williams: J. Appl. Phys., 1964, vol. 35 (4), pp. 1329–38CrossRefGoogle Scholar
  29. 29.
    L.E. Toth: Transition Metal Carbides and Nitrides, Academic Press, New York, NY, 1971, vol. 7, pp. 71–84Google Scholar
  30. 30.
    D.W. Lee, J.S. Haggerty: J. Am. Ceram. Soc., 1969, vol. 52 (12), pp. 641–47CrossRefGoogle Scholar
  31. 31.
    M.W. Barsoum, B. Houng: J. Am. Ceram. Soc., 1993, vol. 76 (6), pp. 1445–51CrossRefGoogle Scholar
  32. 32.
    G. Wen, S.B. Li, B.S. Zhang, Z.X. Guo: Acta Mater., 2001, vol. 49, pp. 1463–70CrossRefGoogle Scholar
  33. 33.
    S.S. Ordanyan, A.K. Kravchik, V.S. Neshpor: Powder Metall. Met. Ceram., 1977, vol. 16 (12), pp. 57–61Google Scholar
  34. 34.
    G.V. Samsonov, S.A. Bozhko: Powder Metall. Met. Ceram., 1970, vol. 9 (3), pp. 35–38Google Scholar
  35. 35.
    G.E. Mangsen, W.A. Lambertson, B. Best: J. Am. Ceram. Soc., 1960, vol. 43 (2), pp. 55–59CrossRefGoogle Scholar
  36. 36.
    A.K. Kakar, A.C.D. Chaklader: J. Appl. Phys., 1967, vol. 38 (8), pp. 3223–30CrossRefGoogle Scholar
  37. 37.
    J.D. McClelland, E.H. Zehms: J. Am. Ceram. Soc., 1963, vol. 46 (2), pp. 77–80CrossRefGoogle Scholar
  38. 38.
    R. Chang, C.G. Rhodes: J. Am. Ceram. Soc., 1962, vol. 45 (8), pp. 379–82CrossRefGoogle Scholar
  39. 39.
    T. Vasilos, R.M. Spriggs: J. Am. Ceram. Soc., 1963, vol. 46 (10), pp. 493–96CrossRefGoogle Scholar
  40. 40.
    ASM Handbook, vol. 3, Alloy Phase Diagrams, ASM INTERNATIONAL, Materials Park, OH, 1992, p. 2.322Google Scholar

Copyright information

© The Minerals, Metals & Materials Society and ASM International 2008

Authors and Affiliations

  • Lingappa Rangaraj
    • 1
  • Siriyara J. Suresha
    • 2
  • Canchi Divakar
    • 1
  • Vikram Jayaram
    • 3
  1. 1.Materials Science DivisionNational Aerospace LaboratoriesBangaloreIndia
  2. 2.Materials Research CentreIndian Institute of ScienceBangaloreIndia
  3. 3.Department of Materials EngineeringIndian Institute of ScienceBangaloreIndia

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