info:eu-repo/semantics/article
Microstructural and mechanical characterization of Al–MWCNT composites produced by mechanical milling
Autor
CYNTHIA DEISY GOMEZ ESPARZA
IVANOVICH ESTRADA GUEL
MARIO MIKI YOSHIDA
LILIANA LICEA JIMENEZ
Institución
Resumen
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.
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