An Approach to Obtaining Homogeneously Dispersed Carbon Nanotubes in Al Powders for Preparing Reinforced Al-Matrix Composites


  • The authors acknowledge financial support by the Tianjin Municipal Science and Technology Commission (No. 05YFJZJC01900) and the Doctor Fund from the Educational Ministry of China (No. 20050056062). Supporting Information is available online from Wiley InterScience or from the author.


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Composite powders of carbon nanotubes (CNTs) and aluminum in which the CNTs are homogeneously dispersed within the Al powder are prepared with an in situ method. Uniform Ni nanoparticles are scattered evenly on the surfaces of Al powders, followed by CNT synthesis through chemical vapor deposition. The hardness and tensile strength of the CNT(Ni)–Al matrix composites are improved compared to aluminum.