Abstract

A carbon nanotube (CNT) reinforced magnesium matrix nanocomposite was synthesized by powder metallurgy method. The magnesium powder was refined by long-time high-energy ball milling, prior to mixing with CNTs. Such a treatment resulted in a uniform dispersion of CNTs within the magnesium matrix. Mechanical testing revealed that the nanocomposite exhibited much higher strength and reasonable malleability, with its compression strength and yield strength being 504MPa and 454MPa, respectively, which are much higher than those of similar materials ever reported in literatures. The result suggests a new way for integrating CNTs into a metal matrix composite for high performances.

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