*Aluminium Alloys - Design and Development of Innovative Alloys, Manufacturing Processes...*

with desirable performance. A cross-section of sintered Al alloys was prepared for microstructure observation through SEM. Collectively, the residual oxygen content of the Al alloys at every stage was monitored by energy dispersive spectroscopy (EDS). Furthermore, any possibility of phase changes of the elemental powder mixture and the sintered Al alloys were identified using x-ray diffraction (XRD) analysis (XRD; PANanalytical empyrean 1032, Eindhoven, Netherlands) in the 2θ range of 20–80°. Moreover, the step size of 0.05 degrees, radiation source of Cu Kα and accelerating voltage and current of 40 kV and 40 mA were also set for the XRD test conditions. Finally, the sintered density of the resultant Al alloys was determined via the Archimedes principle, as per ASTM C830-93. Similar experimental procedure was performed in fabricating the reference material (pure Al).
