Experimental study of ZrB2-Si3N4 on the microstructure, mechanical and electrical properties of high grade AA8011 metal matrix composites

Fayom, J. and Popoola, A. P. I. and Oladijo, O.P. and Popoola , M.O. and Fayomi, O. S. I (2019) Experimental study of ZrB2-Si3N4 on the microstructure, mechanical and electrical properties of high grade AA8011 metal matrix composites. Journal of Alloys and Compounds. pp. 610-615.

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Abstract

The present study evaluates the hybrid effect of ZrB2-Si3N4 on the properties of AA8011 metal matrix composites (AMMCs) developed by two steps stir casting process. The percentage of reinforcement varies from 0% to 20% weight. The microstructure, hardness, ultimate tensile strength, yield strength, electrical resistivity, and conductivity were examined. From the results, it was revealed that the mechanical properties of the reinforced alloy are well improved compared to the unreinforced alloy. The optical micrograph and the scanning electron micrograph images with energy dispersive spectroscopy show the uniform distribution of the hybrid particulates of ZrB2-Si3N4 with no visible porosity. The electrical resistivity of the developed AA8011 composites was also improved with the increase in weight percent of the ceramic particulates, but the electrical conductivity was drastically reduced.

Item Type:	Article
Uncontrolled Keywords:	ZrB2-Si3N4 Stir casting AA8011 Aluminium metal matrix composites Microstructure Mechanical properties
Subjects:	T Technology > T Technology (General) T Technology > TJ Mechanical engineering and machinery
Divisions:	Faculty of Engineering, Science and Mathematics > School of Engineering Sciences
Depositing User:	Mrs Hannah Akinwumi
Date Deposited:	24 Jun 2019 10:49
Last Modified:	24 Jun 2019 10:49
URI:	http://eprints.covenantuniversity.edu.ng/id/eprint/12763

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