Abstract:
In this study, porous Mg-10Al alloy specimens were fabricated by conventional powder metallurgy sintering method for use as hydrogen storage fuel cells. The porosity, pore morphologies, phases in microstructure, and hardness of specimens, which were previously pressed at different cold compaction pressures and then sintered at 465 degrees C, were investigated. The Mg phase desired for hydrogen storage was the predominant phase for all of the specimens. In addition, several second phases, such as the Mg3.1Al0.9 and the Mg17Al12 phases, formed in the microstructures. As a result of increasing cold compaction pressure, the porosity and Mg phase decreased, while the hardness and Mg17Al12 phase increased.
