Effects Of Reinforcement Particle Sizes On Mechanical Properties Of Aluminium/Egg Shell Composites
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Date
2016
Authors
Agunsoye, J.O.
Bello, S.A.
Yekinni, A.A.
Raheem, S.A.
Awe, O.I.
Journal Title
Journal ISSN
Volume Title
Publisher
UNILAG Journal of Medicine, Science and Technology
Abstract
The 100 and 150 µm sized CaCO3 particles (sourced from eggshells) from 2-12 wt.% by were used
as reinforcements for the fabrication of Al ceramics composites using compo cast technique. The
technique involves manual stirring of Al alloy melt-CaCO3 particle mixture prior to pouring
process. The morphology of the CaCO3 particles and Al alloy/CaCO3 composites were examined
using scanning electron microscope (SEM). The mechanical properties of the fabricated Al alloy /
CaCO3 composites were investigated. The result obtained from SEM analysis revealed that the
microstructures of Al alloy/100 µm CaCO3 composites are finer than those of their counterparts.
This justifies better interaction of 100 μm with Al alloy than 150 μm CaCO3 particles which may
be attributable to particle diffusion enhancement due to a decrease in the particle size. Al
alloy/100 µm CaCO3 composites displayed higher tensile strain than Al alloy/150 µm CaCO3
composites. Hence the use of 100 µm sized egg shell particles for reinforcement has experimental
proven advantages over 150 µm sized CaCO3 particles.
Description
Keywords
Aluminium; composite; particle; mechanical properties; diffusion
Citation
Agunsoye, J.O. Bello, S.A. Yekinni, A.A. Raheem, S.A. Awe, O.I. (2016). Effects Of Reinforcement Particle Sizes On Mechanical Properties Of Aluminium/Egg Shell Composites. UNILAG Journal of Medicine, Science and Technology; 4(2): 133-143