Abstract
This paper presents a new method for an inexpensive fabrication of largesized aluminium matrix nanocomposite, namely, the solid–liquid mixed (SLiM)casting technique accompanied with the idea of carrier ‘protein’in the biochemistry. The results reveal that the poor dispersibility and lowwettability of nanosized Al2O3 particles are obviouslyimproved via the carrier agent of Al powder, and the large sized 0·6wt-%Al2O3–Al-2024 metal matrix nanocomposite (MMNC)with an uniformly nanosized particle distribution is successfully preparedby the SLiM casting process. Compared with the conventional stir casting,the tensile strength, yield strength and the hardness of the SLiM 0·6wt-%Al2O3–Al-2024 nanocomposite are enhancedby 59, 58 and 16% respectively. The present fabrication method is suitablefor the production of other MMNCs. This work is expected to provide a guidancefor the commercial preparation of the MMNC.
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