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Texture Development in Liquid-Phase-Sintered β -SiC by Seeding with β -SiC Whiskers

  • Kim, Won-Joong (Department of Materials Science and Engineering, The University of Seoul) ;
  • Roh, Myong-Hoon (Department of Materials Science and Engineering, The University of Seoul)
  • Published : 2006.03.01

Abstract

Silicon carbide ceramics seeded with 10-30 wt% SiC whiskers are fabricated by hot pressing and annealing. A quantitative texture analysis including calculation of the Orientation Distribution Function (ODF) is used for obtaining the degrees of preferred orientation of the fabricated samples. The microstructure and crystallographic texture are discussed with respect to the effect of ${\beta}-SiC$ whisker seeds on the resulting fracture toughness values. The SEM microstructures and the texture data reveal a correlation between texture and fracture toughness anisotropy.

Keywords

References

  1. M. D. Sacks, G. W. Scheiffele, and G. A. Staab, 'Fabrication of Textured Silicon Carbide via Seeded Anisotropic Grain Growth,' J. Am. Ceram. Soc., 79 [6] 1611-16 (1996) https://doi.org/10.1111/j.1151-2916.1996.tb08772.x
  2. M. S. Sandlin, K. J. Bowman, and J. Root, 'Texture Development in SiC-Seeded AlN,' Acta Mater., 45 [1] 383-96 (1997) https://doi.org/10.1016/S1359-6454(96)00148-6
  3. R. J. Xie, M. Mitomo, W. Kim, Y. W. Kim, G. D. Zhan, and Y. Akimune, 'Phase Transformation and Texture in Hot- Forged or Annealed Liquid-Phase-Sintered Silicon Carbide Ceramics,' J. Am. Ceram. Soc., 85 [2] 459-65 (2002) https://doi.org/10.1111/j.1151-2916.2002.tb00111.x
  4. S. H. Lee, Y. I. Lee, Y. W. Kim, R. J. Xie, M. Mitomo, and G. D. Zhan, 'Mechanical Properties of Hot-Forged Silicon Carbide Ceramics,' Scripta Mater., 52 153-56 (2005) https://doi.org/10.1016/j.scriptamat.2004.09.012
  5. W. Kim, Y. W. Kim, and M. H. Choi, 'Texture Development and Phase Transformation in Liquid-Phase-Sintered SiC Ceramics,' Mater. Sci. Forum., 408-412 1693-98 (2002) https://doi.org/10.4028/www.scientific.net/MSF.408-412.1693
  6. Y. S. Chun and Y. W. Kim, 'Possible Strategies for Microstructure Control of Liquid-Phase-Sintered Silicon Carbide Ceramics(in Korean),' J. Kor. Ceram. Soc., 42 [8] 542-47 (2005) https://doi.org/10.4191/KCERS.2005.42.8.542
  7. B. Baron, T. Chartier, T. Rouxel, P. Verdier, and Y. Laurent, 'SiC Particle Reinforced Oxynitride Glass: Processing and Mechanical Properties,' J. Eur. Ceram. Soc., 17, 773- 80 (1997) https://doi.org/10.1016/S0955-2219(96)00165-3
  8. M. Dahmas and H. J. Bunge, 'The Iterative Series-Expansion Method for Quantitative Texture Analysis: I, General Outline,' J. Appl. Crystal., 22 439-47 (1989) https://doi.org/10.1107/S0021889889005261
  9. G. R. Anstis, P. Chantikul, B. R. Lawn, and D. B. Marshall, 'A Critical Evaluation of Indentation Techniques for Measuring Fracture Toughness: I, Direct Crack Measurement,' J. Am. Ceram. Soc., 64 [9] 533-38 (1981) https://doi.org/10.1111/j.1151-2916.1981.tb10320.x
  10. Y. W. Kim, M. Mitomo, and H. Hirotsuru, 'Microstructural Development of Silicon Carbide Containing Large Seed Grains,' J. Am. Ceram. Soc., 80 99-105 (1997) https://doi.org/10.1111/j.1151-2916.1997.tb02796.x
  11. F. Lee and K. J. Bowman, 'Textrue and Anisotropy in Silicon Nitride,' J. Am. Ceram. Soc., 75 [7] 1748-55 (1992) https://doi.org/10.1111/j.1151-2916.1992.tb07192.x
  12. R. J. Xie, M. Mitomo, W. Kim, and Y. W. Kim, 'Texture Development in Silicon Nitride-Silicon Oxynitride In Situ Composites via Superplastic Deformation,' J. Am. Ceram. Soc., 84 [12] 3147-52 (2000)
  13. R. J. Xie, M. Mitomo, W. Kim, Y. W. Kim, and G. D. Zhan, 'Preferred Orientation of Beta-Phase and Its Mechanisms in a Fine-Grained Silicon-Nitride-Based Ceramic,' J. Mater. Res., 16 [2] 590-96 (2001) https://doi.org/10.1557/JMR.2001.0085
  14. B. C. Bae, D. S. Park, Y. W. Kim, W. J. Kim, B. D. Han, H. D. Kim, and C. Park, 'Texture in Silicon Nitride Seeded with Silicon Nitride Whiskers of Different Sizes,' J. Am. Ceram. Soc., 86 [6] 1008-13 (2003) https://doi.org/10.1111/j.1151-2916.2003.tb03409.x