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We report here successful synthesis of Al-based nanocomposites with L1 2 –Al 3 Ti particles in binary Al–Ti (4.1, 5, 8.3, 10, 15 and 20% Ti) and ternary Al-1.6Ti-0.5Cr, Al-3.2Ti-1.0Cr and Al-6.3Ti-2.0Cr alloys, by rapid solidification processing. The microstructure of all the alloys consists of uniform distribution of nanocrystalline L1 2 –Al 3 Ti intermetallic in ultra-fine...
NiAl–30 vol.% Al 2 O 3 nanocomposite has been synthesized from the NiO–Al–Ni powder mixture by carrying out reactive milling in toluene medium and subsequent heating. The NiO reduction and the ordered NiAl phase formation occur simultaneously during milling. The unreacted NiO present in as milled powder is reduced by Al/NiAl at 420°C on heating. Subsequent heating leads to the formation...
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