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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
engineering
Effect of SiC particle size on the physical and mechanical properties of extruded Al matrix nanocomposites
Materials and Design, Volume 54, Year 2014
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Description
In this work, the effect of SiC particle size and its amount on both physical and mechanical properties of Al matrix composite were investigated. SiC of particle size 70. nm, 10. μm and 40. μm, and Al powder of particle size 60. μm were used. Composites of Al with 5 and 10. wt.% SiC were fabricated by powder metallurgy technique followed by hot extrusion. Phase composition and microstructure were characterized. Relative density, thermal conductivity, hardness and compression strength were studied. The results showed that the X-ray diffraction (XRD) analysis indicated that the dominant components were Al and SiC. Densification and thermal conductivity of the composites decreased with increasing the amount of SiC and increased with increasing SiC particle size. Scanning electron microscope (SEM) studies showed that the distribution of the reinforced particle was uniform. Increasing the amount of SiC leads to higher hardness and consequently improves the compressive strength of Al-SiC composite. Moreover, as the SiC particle size decreases, hardness and compressive strength increase. The use of fine SiC particles has a similar effect on both hardness and compressive strength. © 2013 Elsevier Ltd.
Authors & Co-Authors
Elkady, Omayma A.
Egypt, Cairo
Central Metallurgical Research and Development Institute
Fathy, Adel
Egypt, Zagazig
Faculty of Engineering
Statistics
Citations: 326
Authors: 2
Affiliations: 2
Identifiers
Doi:
10.1016/j.matdes.2013.08.049
ISSN:
02641275
e-ISSN:
18734197