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Thermal Shock Resistance of a Kyanite-Based (Aluminosilicate) Ceramic

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Abstract

This paper presents the results of a combined experimental and theoretical study of microstructure and thermal shock resistance of an aluminosilicate ceramic. Shock-induced crack growth is studied in sintered structures produced from powders with different particle size ranges. The underlying crack/microstructure interactions and toughening mechanisms are elucidated via scanning electron microscopy (SEM). The resulting crack-tip shielding levels (due to viscoelastic crack bridging) are estimated using fracture mechanics concepts. The implications of the work are discussed for the design of high refractory ceramics against thermal shock.

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Acknowledgements

This paper is dedicated to the life of the Late Dr. Ismaiel Bashir who went to great lengths to ensure that work was done. The authors would like to thank the National Science Foundation (Grant No. DMR 0231418) for the financial support. Appreciation is due to the Program Manager, Dr. Carmen Huber, for her encouragement and support.

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Authors and Affiliations

  1. Department of Civil and Environmental Engineering, University of Massachusetts Dartmouth, North Dartmouth, MA, 02747, USA

    N. Rahbar

  2. Princeton Institute of Science and Technology of Materials (PRISM), Princeton University, Princeton, NJ, 08540, USA

    B. O. Aduda, J. Zimba, S. K. Obwoya, F. W. Nyongesa, I. Yakub & W. O. Soboyejo

  3. Department of Physics, University of Nairobi, P.O. Box 30197, Nairobi, Kenya

    B. O. Aduda & F. W. Nyongesa

  4. Mintek, Advanced Materials Division, MINTEK, 200 Hans Strijdom Drive, Private bag X3015, Randburg, 2125, South Africa

    J. Zimba

  5. Department of Physics, Kyambogo University, Kampala, Uganda

    S. K. Obwoya

  6. Department of Mechanical and Aerospace Engineering, Princeton University, Princeton, NJ, 08544, USA

    I. Yakub & W. O. Soboyejo

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  1. N. Rahbar
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  2. B. O. Aduda
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  3. J. Zimba
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  4. S. K. Obwoya
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  5. F. W. Nyongesa
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  6. I. Yakub
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  7. W. O. Soboyejo
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Correspondence to N. Rahbar.

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Rahbar, N., Aduda, B.O., Zimba, J. et al. Thermal Shock Resistance of a Kyanite-Based (Aluminosilicate) Ceramic. Exp Mech 51, 133–141 (2011). https://doi.org/10.1007/s11340-010-9345-3

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  • DOI: https://doi.org/10.1007/s11340-010-9345-3

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