Journal of the Korean Ceramic Society (한국세라믹학회지)

The Korean Ceramic Society (한국세라믹학회)
권호 표지
DOI QR코드

DOI QR Code

Properties of Al2O3-SiCw Composites Fabricated by Three Preparation Methods

제조방법에 따른 Al2O3-SiCw 복합체의 특성

  • Lee, Dae-Yeop (School of Materials Science and Engineering, Yeungnam University) ;
  • Yoon, Dang-Hyok (School of Materials Science and Engineering, Yeungnam University)
  • 이대엽 (영남대학교 신소재공학부) ;
  • 윤당혁 (영남대학교 신소재공학부)
  • Received : 2014.07.22
  • Accepted : 2014.09.01
  • Published : 2014.09.30
Download PDF
⟨ Previous Next ⟩

Abstract

$Al_2O_3$-SiC composites reinforced with SiC whisker ($SiC_w$) were fabricated using three different methods. In the first, $Al_2O_3-SiC_w$ starting materials were used. In the second, $Al_2O_3-SiC_w$-SiC particles ($SiC_p$) were used, which was intended to enhance the mechanical properties by $SiC_p$ reinforcement. In the third method, reaction-sintering was used with mullite-Al-C-$SiC_w$ starting materials. After hot-pressing at $1750^{\circ}C$ and 30 MPa for 1 h, the composites fabricated using $Al_2O_3-SiC_w$ and $Al_2O_3-SiC_w-SiC_p$ showed strong mechanical properties, by which the effects of reinforcement by $SiC_w$ and $SiC_p$ were confirmed. On the other hand, the mechanical properties of the composite fabricated by reaction-sintering were found to be inferior to those of the other $Al_2O_3$-SiC composites owing to its relatively lower density and the presence of ${\gamma}-Al_2O_3$ and ${\gamma}-Al_{2.67}O_4$. The greatest hardness and $K_{1C}$ were 20.37 GPa for the composite fabricated using $Al_2O_3-SiC_w$, and $4.9MPa{\cdot}m^{1/2}$ using $Al_2O_3-SiC_w-SiC_p$, respectively, which were much improved over those from the monolithic $Al_2O_3$.

Keywords

References

  1. K. Takahashi, M. Yokouchi, S. K. Lee, and K. Ando, "Crack-healing Behavior of $Al_2O_3$ Toughened by SiC Whiskers," J. Am. Ceram. Soc., 86 [12], 2143-47 (2003). https://doi.org/10.1111/j.1151-2916.2003.tb03622.x
  2. Z. Li and R. C. Bradt, "Micromechanical Stresses in SiC-Reinforced $Al_2O_3$ Composites," J. Am. Ceram. Soc., 72 [1], 70-77 (1989). https://doi.org/10.1111/j.1151-2916.1989.tb05956.x
  3. I. W. Donald and P. W. Mcmillan, "Ceramic-matrix Composites," J. Mater. Sci., 11, 949-72 (1976). https://doi.org/10.1007/BF00542312
  4. M. I. K. Collin and D. J. Rowcliffe, "Influence of Thermal Conductivity and Fracture Toughness on the Thermal Shock Resistance of Alumina-Silicon-Carbide-Whisker Composites," J. Am. Ceram. Soc., 84 [6], 1334-40 (2001).
  5. Y. M. Ko, W. T. Kwon, and Y. W. Kim, "Development of $Al_2O_3$-SiC Composite Tool for Machining Application," Ceram. Int., 30 [8], 2081-86 (2004). https://doi.org/10.1016/j.ceramint.2003.11.011
  6. V. Garnier, G. Fantozzi, D. Nguyen, J. Dubois, and G. Thollet, "Influence of SiC Whisker Morphology and Nature of SiC/$Al_2O_3$ Interface on Thermomechanical Properties of SiC Reinforced $Al_2O_3$ Composites," J. Eur. Ceram. Soc., 25 [15], 3485-93 (2005). https://doi.org/10.1016/j.jeurceramsoc.2004.09.026
  7. H. Y. Yu, K. Raju, J. Y. Park, and D. H. Yoon, "Effects of $Al_2O_3-RE_2O_3$ Additive for the Sintering of SiC and the Fabrication of $SiC_f$/SiC Composites(in Korean)," J. Kor. Ceram. Soc., 50 [6], 364-71 (2013). https://doi.org/10.4191/kcers.2013.50.6.364
  8. V. R. Marinov, "Hybrid Analytical-Numerical Solution for Shear Angle in Orthogonal Metal Cutting - Part I: The Foundation," Int. J. Mech. Sci., 43 [2], 99-414 (2001).
  9. Z. Q. Liu, X. Ai, H. Zhang, Z. T. Wang, and Y. Wan, "Wear Patterns and Mechanisms of Cutting Tools in High-Speed Face Milling," J. Mater. Process. Technol., 129 [1-3], 222-26 (2001).
  10. A. Noviyanto, S. W. Han, H. W. Yu, and D. H. Yoon, "Rare-Earth Nitrate Additives for the Sintering of Silicon Carbide," J. Eur. Ceram. Soc., 33 [15-16], 2915-23 (2013). https://doi.org/10.1016/j.jeurceramsoc.2013.05.017
  11. C. E. Borsa, F. M. Spiandorello, and R. H. G. A. Kiminami, "Synthesis and Characterization of $Al_2O_3$/SiC Powders form Natural Aluminosilicates," Mater. Sci. Forum, 299-300, 57-62 (1999). https://doi.org/10.4028/www.scientific.net/MSF.299-300.57
  12. A. Amroune and G. Fantozzi, "Synthesis of $Al_2O_3$-SiC from Kyanite Precursor," J. Mater. Res., 16 [6], 1609-13 (2001). https://doi.org/10.1557/JMR.2001.0223
  13. J. H. Lee, C. Y. An, C. W. Won, S. S. Cho, and B. S. Chun, "Characteristics of $Al_2O_3$-SiC Composites Powder Prepared by the Self-propagation High-temperature Synthesis and Its Sintering Behavior," Mater. Res. Bull., 35 [6], 945-54 (2000). https://doi.org/10.1016/S0025-5408(00)00274-9
  14. L. C. Pathak, D. Bandyopadhyay, S. Srikanth, S. K. Das, and P. Ramachandrarao, "Effect of Heating Rates on the Synthesis of $Al_2O_3$-SiC Composites by the Self-Propagating High-Temperature Synthesis ISHS) Technique," J. Am. Ceram. Soc., 84 [5], 915-20 (2001). https://doi.org/10.1111/j.1151-2916.2001.tb00768.x
  15. D. Y. Lee and D. H. Yoon, "Properties of Alumina Matrix Composites Reinforced with SiC Whisker and Carbon Nanotubes," Ceram. Int., 40 [9], 14375-83 (2014). https://doi.org/10.1016/j.ceramint.2014.06.030
  16. B. R. Lawn and E. R. Fuller, "Equilibrium Penny-Like Cracks in Indentation Fracture," J. Mater. Sci., 10, 2016-24 (1975). https://doi.org/10.1007/BF00557479
  17. A. Noviyanto and D. H. Yoon, "One Component Metal Sintering Additive for ${\beta}$-SiC Based on Thermodynamic Calculation and Experimental Observations," Mater. Res. Bull., 46 [8], 1186-91 (2011). https://doi.org/10.1016/j.materresbull.2011.04.014
  18. I. Barin, Thermochemical Data of Pure Substances, VCH, New York, 1989.
  19. T. Ishikawa, "Recent Developments of the SiC Fiber Nicalon and Its Composites, Including Properties of the SiC Fiber Hi-Nicalon for Ultra-high Temperature," Compos. Sci. Technol., 51 [2], 135-44 (1994). https://doi.org/10.1016/0266-3538(94)90184-8
  20. X. Teng, H. Liu, and C. Huang, "Effect of $Al_2O_3$ Particle Size on the Mechanical Properties of Alumina-based Ceramics," Mater. Sci. Eng. A, 452-453, 545-51 (2007). https://doi.org/10.1016/j.msea.2006.10.073