JMMCE  Vol.9 No.6 , June 2010
Microstructure and Mechanical Properties of Ceramic Composites
ABSTRACT
Ceramic matrix composites reinforced with metals have been developed to overcome the intensive brittleness and lack of reliability of monolithic ceramics, with a view to introduce ceramics in structural parts used in severe environments such as rocket and jet engines, gas turbines for power plants, heat shields for space vehicles, fusion reactor first wall, aircraft brakes, heat treatment furnaces. In view of these the effects of Al-6%Si alloy particles on the ascast microstructure and properties of Tin Tailings ceramics matrix composites produced by powder metallurgy method have been studied. 5-30 weight percent Al-6%Si alloy particles were added. The results revealed that, addition of Al-6%Si alloy reinforcement increased the linear shrinkage, strength and impact energy with a decreased in density, porosity and hardness value. These increases in strength and impact energy are attributed to the uniform distribution and strong bonding of the soft metal phase in the hard ceramic matrix. These results show that better properties are achievable by addition of Al-6%Si alloy to Tin Tailings.

Cite this paper
V. Aigbodion, J. Agunsoye, V. Kalu, F. Asuke and S. Ola, "Microstructure and Mechanical Properties of Ceramic Composites," Journal of Minerals and Materials Characterization and Engineering, Vol. 9 No. 6, 2010, pp. 527-538. doi: 10.4236/jmmce.2010.96037.
References
[1]   W, D. Callister, Jr “Materials Science and Engineering”. 1997, 511-531.

[2]   J. N. Gay” Composite Materials Design”, 2002, 3-27.

[3]   T.W. Clyne, In: A Mortensen (Ed) “Encyclopedia of Materials Science and Technology”, Elsevier, 2001, 1-20.

[4]   M.K. Surappa, P.K. Rohatgi “Materials Science” 2000, 983-993.

[5]   A. AbdulRasheed “Possibility of using Tin tailings as refractory materials, B-Eng project, Dept. of Met. & Mat Eng. A.B.U, Zaria, Nigeria, 2009, 34-50

[6]   V.S Aigbodion & S.B .Hassan “Effects of silicon carbide reinforcement on Microstructure and properties of cast Al-Si-Fe/Sic particulate composites, Journal of materials science and Engineering A, 2007, 447, 355-360

[7]   I.A. Ogucha “Characterization of Aluminium Alloy 2618 and its Composites Containing Alumina Particles” Ph.D Dissertation Department of Mechanical Engineering, University of Saskatchewan, Saskatoon, 1997, 1-2000.

[8]   W. Zhou, Z. M. Xu. J “Material Process”, 1997, 358-363

[9]   J .W. Pamela “The Life of Composite Materials” 2007, 1-29.

 
 
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