Abstract
Solid-phase-sintered SiC-based composites with short carbon fibers (Csf/SSiC) in concentrations ranging from 0 to 10wt% were prepared by pressureless sintering at 2100°C. The phase composition, microstructure, density, and flexural strength of the composites with different Csf contents were investigated. SEM micrographs showed that the Csf distributed in the SSiC matrix homogeneously with some gaps at the fiber/matrix interfaces. The densities of the composites decreased with increasing Csf content. However, the bending strength first increased and then decreased with increasing Csf content, reaching a maximum value of 390 MPa at a Csf content of 5wt%, which was 60 MPa higher than that of SSiC because of the pull-out strengthening mechanism. Notably, Csf was graphitized and damaged during the sintering process because of the high temperature and reaction with boron derived from the sintering additive B4C; this graphitization degraded the fiber strengthening effect.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
C.E. Smith, G.N. Morscher, and Z.H. Xia, Monitoring damage accumulation in ceramic matrix composites using electrical resistivity, Scripta Mater., 59(2008), No. 4, p. 463.
H. Mei and L.F. Cheng, Stress-dependence and time-dependence of the post-fatigue tensile behavior of carbon fiber reinforced SiC matrix composites, Compos. Sci. Technol., 71(2011), No. 11, p. 1404.
S. Schmidt, S. Beyer, H. Knabe, H. Immich, R. Meistring, and A. Gessler, Advanced ceramic matrix composite materials for current and future propulsion technology applications, Acta Astronaut., 55(2004), No. 3-9, p. 409.
W.C. Tu, F.F. Lange, and A.G. Evans, Concept for a damagetolerant ceramic composite with “strong” interfaces, J. Am. Ceram. Soc., 79(1996), No. 2, p. 417.
Z. Li, P. Xiao, and X. Xiong, Preparation and properties of C/C-SiC brake composites fabricated by warm compacted-in situ reaction, Int. J. Miner. Metall. Mater., 17(2010), No. 4, p. 500.
J.S. Lee, K. Yoshida, and T. Yano, Influence of fiber volume fraction on the mechanical and thermal properties of unidirectionally aligned short-fiber-reinforced SiC composites, J. Ceram. Soc. Jpn., 110(2002), No. 1287, p. 985.
Y.M. Zhang, Y.L. Zhang, J.C. Han, and L.Y. Hu, The effect of sintering additive on fracture behavior of carbon-whisker-reinforced silicon carbide composites, Mater. Sci. Eng. A, 480(2008), No. 1–2, p. 62.
Y.M. Zhang, Y.L. Zhang, J.C. Han, Y.F. Zhou, L.Y. Hu, W. Yao, and W. Qu, The effect of annealing temperature on microstructure and mechanical properties of C/SiC composites, Mater. Sci. Eng. A, 497(2008), No. 1–2, p. 383.
Y.L. Zhang, Y.M. Zhang, J.C. Han, Y.Y. Han, and W. Yao, Fabrication of toughened Cf/SiC whisker composites and their mechanical properties, Mater. Lett., 62(2008), No. 17–18, p. 2810.
X.L. He, Y.K. Guo, Z.M. Yu, Y. Zhou, and D.C. Jia, Study on microstructures and mechanical properties of short-carbon-fiber-reinforced SiC composites prepared by hot-pressing, Mater. Sci. Eng. A, 527(2009), No. 1-2, p. 334.
X.L. He, Y.K. Guo, Y. Zhou, and D.C. Jia, Microstructures of short-carbon-fiber-reinforced SiC composites prepared by hot-pressing, Mater. Charact., 59(2008), No. 12, p. 1771.
H.L. Tang, X.R. Zeng, X.B. Xiong, L. Li, and J.Z. Zou, Mechanical and tribological properties of short-fiber-reinforced SiC composites, Tribol. Int., 42(2009), No. 6, p. 823.
M. Keppeler, H.G. Reichert, J.M. Broadley, G. Thurn, I. Wiedmann, and F. Aldinger, High temperature mechanical behaviour of liquid phase sintered silicon carbide, J. Eur. Ceram. Soc., 18(1998), No. 5, p. 521.
X.M. Yao, H.Q. Liang, X.J. Liu, and Z.R. Huang, Effect of carbon source and adding ratio on the microstructure and properties of solid-state sintering silicon carbide, J. Inorg. Mater., 28(2013), No. 9, p. 1009.
L. Fuso, D. Manfredi, S. Biamino, M. Pavese, P. Fino, and C. Badini, SiC-based multilayered composites containing short carbon fibres obtained by tape casting, Compos. Sci. Technol., 69(2009), No. 11–12, p. 1772.
W.S. Yang, S. Biamino, E. Padovano, L. Fuso, M. Pavese, S. Marchisio, D. Vasquez, C. Vega Bolivar, P. Fino, and C. Badini, Microstructure and mechanical properties of short carbon fibre/SiC multilayer composites prepared by tape casting, Compos. Sci. Technol., 72(2012), No. 6, p. 675.
F.J. Liu, H.J. Wang, L.B. Xue, L.D. Fan, and Z.P. Zhu, Effect of microstructure on the mechanical properties of PAN-based carbon fibers during high-temperature graphitization, J. Mater. Sci., 43(2008), No. 12, p. 4316.
F.Y. Yang, X.H. Zhang, J.C. Han, and S.Y. Du, Characterization of hot-pressed short carbon fiber reinforced ZrB2-SiC ultra-high temperature ceramic composites, J. Alloys Compd., 472(2009), No. 1–2, p. 395.
G.S. Rellick, R.J. Zaldivar, J.M. Yang, and R.W. Kobayashi, Boron migration in boron-doped carbon/carbon composites, Carbon, 30(1992), No. 4, p. 711.
C.E. Lowell, Solid solution of boron in graphite, J. Am. Ceram. Soc., 50(1967), No. 3, p. 142.
D.B. Marshall, B.N. Cox, and A.G. Evans, The mechanics of matrix cracking in brittle-matrix fiber composites, Acta Metall., 33(1985), No. 11, p. 2013.
M.P. Borom and C.A. Johnson, Thermomechanical mismatch in ceramic-fiber-reinforced glass-ceramic composites, J. Am. Ceram. Soc., 70(1987), No. 1, p. 1.
J. Dusza and M. Steen, Fractography and fracture mechanics property assessment of advanced structural ceramics, Int. Mater. Rev., 44(1999), No. 5, p. 165.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Li, Xh., Yan, Qz., Han, Yj. et al. Fabrication of solid-phase-sintered SiC-based composites with short carbon fibers. Int J Miner Metall Mater 21, 1141–1145 (2014). https://doi.org/10.1007/s12613-014-1020-8
Received:
Revised:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s12613-014-1020-8