Synthesis and Characterization of Al/SiC Composite Made by Stir Casting Method

Khalid Mahmood Ghauri, Liaqat Ali, Akhlaq Ahmad, Rafiq Ahmad, Kashif Meraj Din, Ijaz Ahmad Chaudhary, Ramzan Abdul Karim


Ceramics contain a distinctive property of completely absence of slip planes and have least probability of deforming by the application of force. Among these ceramics, the silicon carbide occupies a competent place to be used as a reinforcing agent for aluminum or its alloys. It has the density close to aluminum and is best for making composite having good strength and good heat conductivity. Stir casting has been used to synthesize Al/SiC MMCs by reinforcing silicon carbide particles into aluminum matrix. The reason for using stir casting is to develop technology for the development of MMCs at affordable cost. The selection of SiC as reinforcement and Al as matrix is because of their easy availability. The practical data acquired, analyzed and optimized will be interpreted in the light of information available in the literature and be shared with the relevant industries. The present work was mainly carried out to characterize the SiC/Al composite which was produced by reinforcing the various proportions of SiC (5, 10, 15, 25 and 30%) in aluminum matrix using stir casting technique. Mechanical properties of test specimens made from stir-casted Aluminum-Silicon Carbide composites have been studied using metallographic and mechanical testing techniques. It was observed that as the volume fraction of SiC in the composite is gradually increased, the hardness and toughness increase. However, beyond a level of 25-30 percent SiC, the results are not very consistent, and depend largely on the uniformity of distribution of SiC in the aluminum matrix

Full Text:



Zener, C. (1955), "Impact of Magnetism Upon Metallurgy", Trans. Inst. AIME, Met. Div., pp. 619-630.

Samuel, A.M., Liu, H. and Samuel, F.H. (1993), “On the castability of Al‐Si/SiC particle reinforced metal matrix composites: Factors affecting fluidity and soundness”, Composite Science and Technology, Vol. 49, Issue 1, pp.1- 12.

Wannasin, .J. (2005), “Fabrication of metal matrix composites by a high-pressure centrifugal infiltration process”, Journal of Materials Processing Technology, Vol. 169, pp. 143-149.

M.R. Chen, S.J. Lin, J.W. Yeh, S.K. Chen, Y.S. Huang, C.P. Tu, Mater. Trans 47 (2006) 1395– 1401

Rohatgi, P.K. (1994), "Low-cost, Fly-AshContaining Aluminum-Matrix Composites", JOM - The Member Journal of TMS, v. 46, n. 11, pp. 55-59.

Rohatgi, P.K., Sobezak, J., Asthana, R. and Kim, J.K.(1998), “Inhomogeneities in silicon carbide distribution in stirred liquids-water model study for synthesis of composites”, Materials Science and Engineering , Vol.252 (1), pp. 98-99.

J.W. Yeh, S.K. Chen, S.J. Lin, J.Y. Gan, T.S. Chin, T.T. Shun, C.H. Tsau, S.Y. Chang, Adv. Eng. Mater 6 (2004) 299–303.

Nanostructured high-entropy alloys with multiple principal elements: novel alloy design concepts and outcomes, Adv. Eng. Mater. 6 (2004) 299–303. J.W. Yeh, Recent progress in high-entropy alloys, Ann. Chim.: Sci. Mat. 31 (2006) 633– 648.

J.W. Yeh, S.Y. Chang, Y.D. Hong, S.K. Chen, S.J. Lin, Mater. Chem. Phys. 103 (2007) 41–46.

M.H. Tsai, C.W.Wang, C.H. Lai, J.W. Yeh, J.Y. Gan, Appl. Phys. Lett. 92 (2008) 3.

Poole, W.J. and Charras, N. (2005), “ An experimental study on the effect of damage on the stress-strain behavior for Al-Si model composites”, Material Science & Engineering, Vol. 406 (1-2), pp. 300-308.

C.J. Tong, M.R. Chen, J.W. Yeh, S.J. Lin, S.K. Chen, T.T. Shun, S.Y. Chang, Metall. Mater. Trans. A 36 (2005) 1263–1271.

Quin, S., Chen, C.and Zhang, G. (1999), “The effect of particle shape on ductility of SiC reinforced 6061 Al matrix composite”, Material Science and Engineering, Vol. 272(2), pp. 363- 370.

Ourdjini, A., Chew, K.C. and Khoo, B.T. (2001), “Settling of silicon carbide particles in case metal matrix composites”, Journal of Materials Processing Technology, Vol. 116 (1), pp. 72-76.

C.J. Tong, Y.L. Chen, S.K. Chen, J.W. Yeh, T.T. Shun, C.H. Tsau, S.J. Lin, S.Y. Chang, Microstructure characterization of AlxCoCrCuFeNi high-entropy alloy system with multiprincipal elements, Metall. Mater. Trans. A 36A (2005) 881–893.

M. Shinn, S.A. Barnett, Appl. Phys. Lett. 64 (1) (1994) 61.

X. Chu, M.S. Wong, W.D. Sproul, S.A. Barnett, Surf. Coat. Technol. 57 (1993) 13.

C.Y. Hsu, J.W. Yeh, S.K. Chen, T.T. Shun, Metall. Mater. Trans. A 35 (2004) 1465–1469.

P.K. Huang, J.W. Yeh, T.T. Shun, S.K. Chen, Adv. Eng. Mater. 6 (2004) 74–78.

C.J. Tong, Y.L. Chen, J.W. Yeh, S.J. Lin, S.K. Chen, T.T. Shun, C.H. Tsau, S.Y. Chang, Metall. Mater. Trans. A 36 (2005) 881–893.

C.J. Tong, M.R. Chen, J.W. Yeh, S.J. Lin, S.K. Chen, T.T. Shun, S.Y. Chang, Metall, Mater. Trans. A 36 (2005) 1263–1271.

M.H. Tsai, C.W.Wang, C.H. Lai, J.W. Yeh, J.Y. Gan, Appl. Phys. Lett. 92 (2008) 3.

H.Y. Chen, C.W. Tsai, C.C. Tung, J.W. Yeh, T.T. Shun, C.C. Yang, S.K. Chen, Ann. Chim. Sci. Mat. 31 (2006) 685–698.

Copyright (c) 2016 Liaqat Ali

Powered By KICS