Fabrication and characterization of AZ91/CNT magnesium matrix composites

Yong-Ha Park; Yong-Ho Park; Ik-Min Park; Jeong-jung Oak; Hisamichi Kimura; Kyung-Mox Cho

doi:10.1117/12.810783

30 December 2008 Fabrication and characterization of AZ91/CNT magnesium matrix composites

Yong-Ha Park, Yong-Ho Park, Ik-Min Park, Jeong-jung Oak, Hisamichi Kimura, Kyung-Mox Cho

Proceedings Volume 7269, Micro- and Nanotechnology: Materials, Processes, Packaging, and Systems IV; 726912 (2008) https://doi.org/10.1117/12.810783
Event: SPIE Smart Materials, Nano- and Micro-Smart Systems, 2008, Melbourne, Australia

Abstract

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

Citation Download Citation

Yong-Ha Park, Yong-Ho Park, Ik-Min Park, Jeong-jung Oak, Hisamichi Kimura, and Kyung-Mox Cho "Fabrication and characterization of AZ91/CNT magnesium matrix composites", Proc. SPIE 7269, Micro- and Nanotechnology: Materials, Processes, Packaging, and Systems IV, 726912 (30 December 2008); https://doi.org/10.1117/12.810783

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