Damping Behavior of $Al-Li-SiC_p$ Composites Processed by Stir Casting Technique

Bauri, Ranjit and Surappa, MK (2005) Damping Behavior of $Al-Li-SiC_p$ Composites Processed by Stir Casting Technique. In: Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science, 36 (3). pp. 667-673.

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Abstract

Damping characteristics of 8090 Al alloy and its composites reinforced with 8, 12, and 18 vol pct SiC particles were investigated using a dynamic mechanical analyzer (DMA). Tests were done at different frequencies over a temperature range of $27^oC$ to $300^oC$. Composites show higher damping capacity than the unreinforced alloy. Damping capacity is found to increase with decreasing frequency. An equation relating damping capacity with frequency has been proposed. The damping data are analyzed in the light of matrix microstructure and different operative mechanisms.

Item Type:	Journal Article
Publication:	Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science
Publisher:	Springer
Additional Information:	Copyright of this article belongs to Springer.
Department/Centre:	Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)
Date Deposited:	28 Jun 2007
Last Modified:	19 Sep 2010 04:37
URI:	http://eprints.iisc.ac.in/id/eprint/10811

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