Skip to main content
SpringerLink
Log in

R-curve behavior of layered silicon carbide ceramics with surface fine microstructure

  • Published:
Journal of Materials Science Aims and scope Submit manuscript

Abstract

By adjusting the α : β SiC phase ratios in the individual starting powders, a layered SiC consisting of surface and inner layers with distinctively different microstructures are produced by hot-pressing and subsequent annealing. The surface layer consisted of relatively fine, equiaxed α-SiC grains, designed for high strength, while the inner layer consisted of elongated α-SiC grains, designed for high toughness. By virtue of the common SiC phase and the same sintering aids (Al2O3-Y2O3), the interlayer interfaces are chemically compatible and strongly bonded. R-curve behavior of the layered SiC was measured and compared with the related monolithic materials. The layered SiC showed better damage tolerance than monolithic materials and stronger R-curve behavior than surface layer. This superior performance of layered SiC ceramics was attributed to the contribution of both high strength of the surface layer for small flaws and high toughness of the inner layer for larger flaws.

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. F. F. Lange, J. Amer. Ceram. Soc. 66 (1983) 396.

    Google Scholar 

  2. S. K. Lee, Y. C. Kim and C. H. Kim, J. Mater. Sci. 29 (1994) 5321.

    Google Scholar 

  3. G. D. Zhan, M. Mitomoand Y.-W. Kim, J. Amer. Ceram. Soc. 82 (1999) 2924.

    Google Scholar 

  4. C. W. Li and J. Yamanis,Ceram. Eng. Sci. Proc. 10 (1988) 632.

    Google Scholar 

  5. S. R. Choi and J. A. Salem, J. Amer. Ceram. Soc. 77 (1994) 1042.

    Google Scholar 

  6. N. P. Padture and B. R. Lawn, ibid. 77(1994) 2518.

    Google Scholar 

  7. N. P. Padture, ibid. 77 (1994) 519.

    Google Scholar 

  8. Y.-W. Kim, M. Mitomo and H. Hirotsuru, ibid. 78 (1995) 3145.

    Google Scholar 

  9. C. J. Gilbert, J. J. Cao, L. C. De Jonghe and R. O. Ritchie, ibid. 80 (1997) 2253.

    Google Scholar 

  10. M. A. Mulla and V. D. Krstic, Acta Metall. Mater. 42(1994) 303.

    Google Scholar 

  11. J. Y. Kim, Y. W. Kim, M. Mitomo, G. D. Zhan and J. G. Lee, J.Amer. Ceram. Soc. 82 (1999) 441.

    Google Scholar 

  12. C. J. Gilbert, J. J. Cao, W. J. Moberl Chan, L.C. De Jonghe and R. O. Ritchie, Acta Mater. 44 (1996) 3199.

    Google Scholar 

  13. N. P. Padture, D.C. Pender, S. Wuttiphn and B. R. Lawn, J. Amer. Ceram. Soc. 78 (1995) 3160.

    Google Scholar 

  14. C.J. Russo, M. P. Harmer, H. M. Chan and G. A. Miller, ibid. 75 (1992) 3396.

    Google Scholar 

  15. P. Sajalik, Z. Lences and J. Dusza, J. Mater. Sci. 31 (1996)4837.

    Google Scholar 

  16. T. Ohji, Y. Shigegaki, T. Miyajima and S. Kanzaki, J. Amer. Ceram. Soc. 80(1997) 991.

    Google Scholar 

  17. L. An, H.-C. Ha and H. M. Chan, ibid. 81(1998) 3321.

    Google Scholar 

  18. R. F. Krause, ibid. 71 (1988) 338.

    Google Scholar 

  19. Y.-W. Kim, H. Tanaka, M. Mitomo and S. Otani, J. Ceram. Soc. Japan. 103 (1995) 257.

    Google Scholar 

  20. Y.-W. Kim, M. Mitomo, H. Emoto and J. G. Lee, J. Amer. Ceram. Soc. 81 (1998)3136.

    Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Department of Materials Science and Engineering, Kumoh National University of Technology, Kumi, 730-701, Korea

    K.-S. Cho

  2. Multifunctional Ceramics Research Center, Korea Institute of Science and Technology, Seoul, 130-650, Korea

    H.-J. Choi & J.-G. Lee

  3. Department of Materials Science and Engineering, The University of Seoul, Seoul, 130-743, Korea

    Y.-W. Kim

Authors
  1. K.-S. Cho
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. H.-J. Choi
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. J.-G. Lee
    View author publications

    You can also search for this author in PubMed Google Scholar

  4. Y.-W. Kim
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to K.-S. Cho.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Cho, KS., Choi, HJ., Lee, JG. et al. R-curve behavior of layered silicon carbide ceramics with surface fine microstructure. Journal of Materials Science 36, 2189–2193 (2001). https://doi.org/10.1023/A:1017544000562

Download citation

  • Issue Date:

  • DOI: https://doi.org/10.1023/A:1017544000562

Keywords

Search

Navigation