Production of Ni_xAl_y/Al2O3 Composites Using a Combination of Mechanical Activation and Self-Propagating High-Temperature Synthesis

摘要

The reduction of nickel oxide by aluminum and synthesis of nickel aluminides were studied by IR spectroscopy, x-ray diffraction (including synchrotron radiation), and electron microscopy. Composites consisting of nickel aluminides and aluminum oxide were produced by varying the composition of the initial mixture (nickel oxide + aluminum + nickel) and by a combination of mechanical activation and self-propagating high-temperature synthesis.