Indentation Induced Deformation and Crack Behavior of β-SiC Irradiated at High Temperature

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Irradiation damage produced by neutrons or energetic particles lead to changes of physical- and mechanical-properties of SiC. Radiation hardening and fracture toughness changing of SiC were clarified by indentation method previously. However, the mechanism studies have received little alteration. The purpose of this study is to improve the understanding of the mechanisms of mechanical property changes under irradiation. In this paper, the microstructural observation beneath and near an indentation will be used to infer mechanisms of radiation hardening and toughening. Indenting polycrystalline SiC creates deformation and cracking in the plastically deformed region. In the case of irradiated SiC, however, small-sized deformation zone was observed below contact indent, which resulted in the restricted size of residual impression. Additionally, the indentation cracks showed complex propagation behaviors such as deflecting, branching and microcracking.

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Edited by:

Hai-Doo Kim, Hua-Tay Lin and Michael J. Hoffmann

Pages:

489-494

Citation:

K. H. Park et al., "Indentation Induced Deformation and Crack Behavior of β-SiC Irradiated at High Temperature ", Key Engineering Materials, Vol. 287, pp. 489-494, 2005

Online since:

June 2005

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$38.00

[1] R.J. Price, Nucl. Tech., Vol. 35 (1977), p.320.

[2] R.J. Price, J. Nucl. Mater., Vol. 33 (1969), p.17.

[3] L.L. Snead, Y. Katoh, A. Kohyama, J.L. Bailey, N.L. Vaughn and R.A. Lowden, J. Nucl. Mater., Vol. 283-287 (2000), p.551.

[4] L.L. Snead, S.J. Zinkle and D. Steiner, J. Nucl. Mater., Vol. 191-194 (1992), p.560.

[5] Y. Katoh, H. Kishimoto and A. Kohyama, J. Nucl. Mater., Vol. 307-311 (2002), p.1221.

[6] R.J. Price, J. Nucl. Mater., Vol. 48 (1973), p.47.

[7] T. Yano, H. Miyazaki, M. Akiyoshi and T. Iseki, J. Nucl. Mater., Vol. 253 (1998), p.78.

[8] R.H. Jones, L.L. Snead, A. Kohyama and P. Fenici, Fusion Engineering and Design Vol. 41 (1998), p.15.

[9] C.J. Mchargue, D. L. Joslin and J. M. Williams, Nucl. Instr. and Meth. Vol. B46 (1990), p.185.

[10] L.L. Snead, S.J. Zinkle, J.C. Hay and M.C. Osborne, Nucl. Instr. and Meth. Vol. B141 (1998), p.123.

[11] M.C. Osborne, J.C. Hay, L.L. Snead and D. Steiner, J. Am. Ceram. Soc., Vol. 82.

[9] (1999), p.2490.

[12] K.H. Park, S. Kondo, Y. Katoh and A. Kohyama, Fusion Science and Technology, Vol. 44 (2003), p.455.

[13] K. H. Park, Y. Katoh, H. Kishimoto and A. Kohyama, J. Nucl. Mater., Vol. 307-311 (2002), p.1187.

[14] S. Kondo, K.H. Park, Y. Katoh and A. Kohyama, Fusion Science and Technology, Vol. 44 (2003), p.181.

[15] A. Kohyama, Y. Katoh, M. Ando and K. Jimbo, Fusion Eng. Design Vol. 51-52 (2000), p.789.

[16] J. B. Wachtman: Mechanical Properties of Ceramics, (A Wiley-Interscience Publication, New York, 1996).

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