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Microstructural and mechanical characterization of Al–MWCNT composites produced by mechanical milling
CYNTHIA DEISY GOMEZ ESPARZA
IVANOVICH ESTRADA GUEL
MARIO MIKI YOSHIDA
LILIANA LICEA JIMENEZ
Acceso Abierto
Sin Derechos Reservados
Al-MWCNT
Novel Al-based nanocomposites reinforced with multi-walled carbon nanotubes were produced by mechanical milling. Next, pressure-less sintering at 823K under vacuum and hot extrusion at 773K were carried out. The interface between Al matrix and the multi-walled carbon nanotubeswas examined using transmission electron microscopy. The values of yield strength (σy), maximum strength (σmax) and microhardness Vickers (HVN) of the compositeswere evaluated and reported as a function of carbon nanotubes content. The concentration of multi-walled carbon nanotubes has an important effect on the mechanical properties of the nanocomposite. Formation of aluminum carbide in the nanocomposites was observed. Possible strengthening mechanisms are presented and discussed.
2009
Artículo
Inglés
OTRAS
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