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Oxidation of monolithic TiB2 and of Al2O3-TiB2 composite

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Abstract

In view of the susceptibility of TiB2 to oxidation, the thermal stability of monolithic TiB2 and Al2O3-TiB2 composite was investigated. The temperature at which TiB2 ceramic starts to oxidize is about 400°C, oxidation kinetic being controlled by diffusion up toT≈900°C and in the first stage of the oxidation at 1000 and 1100°C (up to 800 and 500 min, respectively), and by a linear law at higher temperatures and longer periods. Weight gains of Al2O3-TiB2 composite can be detected only at temperatures above ≈700°C and the rate-governing step of the oxidation reaction is characterized by a one-dimensional diffusion mechanism atT=700 and 800°C and by two-dimensional diffusion at higher temperatures. The composition and morphology of the oxidized surfaces were analysed.

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References

  1. S. Baik andP. F. Becher,J. Amer. Ceram. Soc. 70 (1987) 527.

    Google Scholar 

  2. V. J. Tennery, C. B. Finch, C. S. Yust andG. W. Clark, in “Science of hard materials”, edited by Viswanadham (Plenum, New York, 1983) pp. 891–909.

    Google Scholar 

  3. A. Bellosi, T. Graziani, S. Guicciardi andA. Tampieri, in “Proceedings of the 9th Special Ceramics Conference”, London, December 1989 (Institute of Ceramics, UK) pp. 163–74.

    Google Scholar 

  4. J. Matsushita, S. Hayashi andH. Saito,J. Ceram. Soc. Jpn Inter. Ed. 97 (1989) 1200.

    Google Scholar 

  5. I. Kimura, N. Hotta, Y. Hiraoka andN. Saito,J. Eur. Ceram. Soc. 5 (1989) 23.

    Google Scholar 

  6. A. Bellosi andG. N. Babini, in “4th International Symposium on Ceramic Materials and Components for Engines”, Goeteborg, 10–12 June 1991, edited by R. Carlsson, T. Johansson and L. Kahlman (Elsevier Science, London).

    Google Scholar 

  7. J. Mukerji andS. K. Biswas,J. Amer. Ceram. Soc. 73 (1990) 142.

    Google Scholar 

  8. A. Tampieri, A. Bellosi andV. Biasini, in “Advanced Structural Inorganic Composites”, edited by P. Vincenzini (Elsevier Science, Amsterdam, 1991) pp. 409–19.

    Google Scholar 

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Authors and Affiliations

  1. Research Institute for Ceramics Technology, CNR-IRTEC, via Granarolo 64, Faenza, Italy

    A. Tampieri & A. Bellosi

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  1. A. Tampieri
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  2. A. Bellosi
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Tampieri, A., Bellosi, A. Oxidation of monolithic TiB2 and of Al2O3-TiB2 composite. J Mater Sci 28, 649–653 (1993). https://doi.org/10.1007/BF01151240

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  • DOI: https://doi.org/10.1007/BF01151240

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