Carbon Nano Tube (CNT) reinforced AZ91 metal matrix composites (MMC) were fabricated by the squeeze infiltrated
method. Properties of magnesium alloys have been improved by impurity reduction, surface treatment and alloy design,
and thus the usage for the magnesium alloys has been extended recently. However there still remain barriers for the
adaption of magnesium alloys for engineering materials. In this study, we report light-weight, high strength heat resistant
magnesium matrix composites. Microstructural study and tensile test were performed for the squeeze infiltrated
magnesium matrix composites. The wear properties were characterized and the possibility for the application to
automotive power train and engine parts was investigated. It was found that the squeeze infiltration technique is a proper
method to fabricate magnesium matrix composites reducing casting defects such as pores and matrix/reinforcement
interface separation etc. Improved tensile and mechanical properties were obtained with CNT reinforcing magnesium
alloys
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