Structure of Mechanically Milled CNT-Reinforced Al-Alloy Nanocomposites
Abbreviated Journal Title
Mater. Manuf. Process.
Aluminum composite; Carbon nanotubes; Characterization; Mechanical; milling; Morphology; MG-SI ALLOYS; CARBON NANOTUBES; ALUMINUM COMPOSITES; AL-AL2O3 COMPOSITE; MATRIX COMPOSITES; POWDERS; MICROSTRUCTURE; MORPHOLOGY; Engineering, Manufacturing; Materials Science, Multidisciplinary
Mechanical milling of aluminum-based two Al-Si-Mg alloys were reinforced with multiwalled carbon nanotubes (CNTs) using a planetary ball mill, forming a nanocomposite structure. The milling took place for different timings of 1, 3, and 5h to follow the dispersion and distribution of CNTs. The effects of concentration of CNTs (ranging from 0.5 to 2wt%) and milling periods on the final microstructure of the composites were investigated. The mechanically milled powders were investigated by X-ray diffractometer (XRD), scanning electron microscope (SEM), and particle size analyzer. The crystallite size and the accumulating internal strains increased with milling time, and the smallest grain sizes achieved were about 100nm. The results showed that milling was able to adequately disperse CNTs in the aluminum alloy matrices at different mechanical milling times and range of CNT concentrations.
Materials and Manufacturing Processes
"Structure of Mechanically Milled CNT-Reinforced Al-Alloy Nanocomposites" (2013). Faculty Bibliography 2010s. 3600.