Título

Microstructural characterization in Al-C-Al2O3 Composites Produced by Mechanical Milling.

Autor

AUDEL SANTOS BELTRAN

VERONICA GALLEGOS OROZCO

IVANOVICH ESTRADA GUEL

MARIO MIKI YOSHIDA

Nivel de Acceso

Acceso Abierto

Licencia

http://creativecommons.org/about/cc0/

Materias

ALUMINUM-BASED COMPOSITES - (AL-C) BIOLOGÍA Y QUÍMICA - (CTI) QUÍMICA - (CTI) OTRAS ESPECIALIDADES QUÍMICAS - (CTI) OTRAS - (CTI) OTRAS - (CTI)

Resumen o descripción

Aluminum-graphite-copper (Al-C-Cu) novel micro-composites have been produced using the Mechanical Alloying process (MA). The mechanical properties of the obtained composites have been evaluated. Yield strength (σy) values reached in the composites are considerably higher than those reported for pure aluminum. There is a direct relationship between σy and final graphite content in the composite. σy values increase as the nominal C content increases as well. We found that the most important hardening element was the graphite. We found that the optimal ratio Cu/C correspond to 0.33% for different volume fractions of graphite and cooper. There is an apparent synergy effect in σy between Cu and C. Results of TEM analysis have shown the presence of alumina particles in fiber shape from oxide surface of powder. Presence of alumina fibers in the composite improves the mechanical properties.

Fecha de publicación

2005

Tipo de publicación

Artículo

Versión de la publicación

Versión enviada

Recurso de información

http://cimav.repositorioinstitucional.mx/jspui/handle/1004/2229

Formato

application/pdf

Idioma

Inglés

Repositorio Orígen

Fuente de Objetos Científicos Open Access

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