Hydrogenation reaction of aluminum and aluminum-based alloys at high pressures and high temperatures

Saito, Hiroyuki; Machida, Akihiko; Katayama, Yoshinori; Aoki, Katsutoshi

Hydrogenation reaction of aluminum was achieved using cubic-type multi-anvils apparatus. The reaction was investigated by synchrotron radiation X-ray diffraction measurement. The reaction pressure-temperature diagram was obtained by the measurements and was confirmed to agree with thermodynamical calculation. Aluminum-based alloy hydrides have been explored using the technique because it allows hydrogenation reaction of the alloys with chemically stable surface oxide layer.