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STUDYING THE INFLUENCE OF CERAMIC PARTICLES ON THE COEFFICIENT OF THERMAL EXPANSION OF METAL MATRIX COMPOSITE | ||
| Al-Qadisiyah Journal for Engineering Sciences | ||
| Article 26, Volume 2, Issue 2, 2009, Pages 315-323 PDF (0 K) | ||
| Author | ||
| Inad F. Mustafa | ||
| Abstract | ||
| The increased role of advanced materials in mechanical design optimization has purred the development of new material types and combinations previously unavailable to the designer .These new materials give the designer the ability to design higher density systems by matching the material characteristics of all parts within the system .Certain metal matrix composites now allow the designer to select needed material properties over a fairly large range (thermal expansion , conductivity and material strength for example ).The current work has been made for the evaluation of coefficient of thermal expansions (CTE) of Aluminum based cast composites reinforced with mixture of (Al2O3 ) and (SiC) particles with different volume fraction . The cast composites have been prepared by liquid metallurgical route .The results show that (CTE) significantly increased with increasing temperature up to 400C◦ .But it has been observed that (CTE) decreases with increasing volume fraction of reinforcing particles .The ( CTE ) values were found to be comparable with theoretical results .Turner model showed conformance with the current experimental results. | ||
| Keywords | ||
| Coefficient of thermal expansion; Aluminium metal matrix composites; and Sic particles | ||
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