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Microstructure and mechanical properties of Al2O3-Cr2O3-ZrO2 composites

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Abstract

Al2O3 is a popular ceramic and has been used widely in many applications and studied in many aspects. On the other hand, zirconia-toughened alumina (ZTA) is a desirable material for engineering ceramics because of its high hardness, high wear resistance and high toughness. In the present research, Al2O3-Cr2O3-ZrO2 composites were produced by hot-pressing in order to harden the Al2O3 matrix in ZTA. Its microstructure and mechanical properties were studied by SEM, ESCA, XRD, Vickers hardness and bending strength test. It was found that addition of ZrO2 inhibited the grain growth of Al2O3-Cr2O3 and the grain growth of ZrO2 proceeded with increasing amounts of ZrO2 in the Al2O3-Cr2O3-Zr2 composite. The formation of solid solution Al2O3-Cr2O3 was also confirmed by XRD, and monoclinic ZrO2 increased on addition of Cr2O3. Maximum hardness was at Al2O3-10wt% Cr2O3 with 10 vol% ZrO2 and a stress-induced transformation was confirmed on the fracture surface of the specimen after the bending test.

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References

  1. E. M. Levin andH. F. McMurdie, “Phase Diagrams for Ceramists” (American Ceramic Society, Columbus, 1975).

    Google Scholar 

  2. R. C. Garvie, R. H. Hannink andR. T. Pascoe,Nature 258 (1975) 703.

    Google Scholar 

  3. F. F. Lange andD. J. Green, “Advances in Ceramics”, Vol. 3 (American Ceramic Society, Columbus, 1981) pp. 217–25.

    Google Scholar 

  4. F. F. Lange andM. M. Hirlinger,J. Amer. Ceram. Soc. 67 (1984) 164.

    Google Scholar 

  5. N. Claussen,ibid. 59 (1976) 49.

    Google Scholar 

  6. R. C. Bradt,ibid. 50 (1967) 54.

    Google Scholar 

  7. R. C. Garvie andP. S. Nicholson,ibid. 55 (1972) 303.

    Google Scholar 

  8. R. A. Miller, J. L. Smialek andR. G. Garlick, “Advances in Ceramics”, Vol. 3 (American Ceramic Society, Columbus, 1981) pp. 241–53.

    Google Scholar 

  9. K. Niihara,Ceramics 20 (1985) 12.

    Google Scholar 

  10. B. D. Cullity, “Elements of X-ray Diffraction” (Addison-Wesley, Reading, 1956).

    Google Scholar 

  11. F. F. Lange andM. M. Hirlinger,J. Amer. Ceram. Soc. 67 (1984) 164.

    Google Scholar 

  12. D. J. Green,ibid. 65 (1982) 610.

    Google Scholar 

  13. L. R. Rossi andW. G. Lawrence,ibid. 53 (1970) 604.

    Google Scholar 

  14. M. Jayaratna, M. Yoshimura andS. Somiya,J. Mater. Sci. 21 (1986) 591.

    Google Scholar 

  15. B. B. Grate, W. C. Smith, C. H. Kim, D. P. H. Hasselman andG. E. Kane,Ceram. Bull. 54 (1975) 210.

    Google Scholar 

  16. T. Arahori, N. Iwamoto andN. Umesaki,J. Ceram. Soc. Jpn 94 (1986) 742.

    Google Scholar 

Download references

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Authors and Affiliations

  1. Technical Research Laboratories, Sumitomo Metal Industries Ltd, 16 Sunayama, Hasaki, Ibaraki 314-02, 660, Amagasaki, Japan

    Tadahisa Arahori

  2. Department of Materials Science and Engineering, University of Florida, 32611, Gainesville, Florida, USA

    E. Dow Whitney

Authors
  1. Tadahisa Arahori
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  2. E. Dow Whitney
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Arahori, T., Dow Whitney, E. Microstructure and mechanical properties of Al2O3-Cr2O3-ZrO2 composites. J Mater Sci 23, 1605–1609 (1988). https://doi.org/10.1007/BF01115698

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  • DOI: https://doi.org/10.1007/BF01115698

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