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Proceedings Paper

Fabrication and characterization of AZ91/CNT magnesium matrix composites
Author(s): Yong-Ha Park; Yong-Ho Park; Ik-Min Park; Jeong-jung Oak; Hisamichi Kimura; Kyung-Mox Cho
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Paper 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

Paper Details

Date Published: 30 December 2008
PDF: 5 pages
Proc. SPIE 7269, Micro- and Nanotechnology: Materials, Processes, Packaging, and Systems IV, 726912 (30 December 2008); doi: 10.1117/12.810783
Show Author Affiliations
Yong-Ha Park, Pusan National Univ. (Korea, Republic of)
Yong-Ho Park, Pusan National Univ. (Korea, Republic of)
Ik-Min Park, Pusan National Univ. (Korea, Republic of)
Jeong-jung Oak, Tohoku Univ. (Japan)
Hisamichi Kimura, Tohoku Univ. (Japan)
Kyung-Mox Cho, Pusan National Univ. (Korea, Republic of)

Published in SPIE Proceedings Vol. 7269:
Micro- and Nanotechnology: Materials, Processes, Packaging, and Systems IV
Jung-Chih Chiao; Alex J. Hariz; David V. Thiel; Changyi Yang, Editor(s)

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