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Effect of Reinforcement Volume Ratio on Thermal Conductivity of SiO2 Reinforced Al Matrix Composite Produced by Vacuum Infiltration Method
Asian Journal of Chemistry,
Vol. 22 No. 1 (2010): Vol 22 Issue 1, 2010
Abstract
In this study, SiO2 powders with 105 μm particle size were filled in
quartz tubes freely to form 30, 40, 50 % reinforcement volume ratios.
Liquid Al7075 alloy was vacuum infiltrated into the SiO2 compact under
the same vacuum condition, the same time and at the same temperature
in normal atmosphere for 3 min. After vacuuming, infiltration height
and density of product composite have been determined. Microstructures
of composites were investigated by SEM analysis. Two methods, finite
element analysis method and experimental method, were used to determine
thermal conductivity. The results of these methods were evaluated
and compared. It has been found that the values of two different methods
were quite near each other and thermal conductivity of composite increased
with decreasing reinforcement volume ratio.
quartz tubes freely to form 30, 40, 50 % reinforcement volume ratios.
Liquid Al7075 alloy was vacuum infiltrated into the SiO2 compact under
the same vacuum condition, the same time and at the same temperature
in normal atmosphere for 3 min. After vacuuming, infiltration height
and density of product composite have been determined. Microstructures
of composites were investigated by SEM analysis. Two methods, finite
element analysis method and experimental method, were used to determine
thermal conductivity. The results of these methods were evaluated
and compared. It has been found that the values of two different methods
were quite near each other and thermal conductivity of composite increased
with decreasing reinforcement volume ratio.
Keywords
Composites
Infiltration
SiO2
Thermal conductivity.
CALIN, R. (2009). Effect of Reinforcement Volume Ratio on Thermal Conductivity of SiO2 Reinforced Al Matrix Composite Produced by Vacuum Infiltration Method. Asian Journal of Chemistry, 22(1), 808–814. Retrieved from https://asianpubs.org/index.php/ajchem/article/view/16712
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