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Strengthening phases in the production of Al2024-CNTs composites by a milling process

  • R. Pérez-Bustamante (a1), F. Pérez-Bustamante (a2), J. M. Herrera-Ramíreza (a1), I. Estrada-Guel (a1), P. Amézaga-Madrid (a1), M. Miki-Yoshida (a1) and R. Martínez-Sánchez (a1)...

Abstract

Carbon nanotubes (CNTs) synthesized by a chemical vapor deposition (CVD) method and the 2024 aluminum alloy (Al2024) are used in the production of Al2024-CNTs composites. An homogeneous dispersion of the CNTs into the aluminum matrix is achieved by a mechanical milling processing. CNTs keet their morphology after milling and sintering processes. Formation of aluminum carbide as a function of CNTs contents is observed. Formation of equilibrium phases during sintering is observed by electron microscopy. CNTs and aluminum carbide in the composites are characterized by transmission electron microscopy. Hardness results of sintered products show an increment of up to 285% over the unreinforced alloy prepared by the same route.

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Strengthening phases in the production of Al2024-CNTs composites by a milling process

  • R. Pérez-Bustamante (a1), F. Pérez-Bustamante (a2), J. M. Herrera-Ramíreza (a1), I. Estrada-Guel (a1), P. Amézaga-Madrid (a1), M. Miki-Yoshida (a1) and R. Martínez-Sánchez (a1)...

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