Investigation of reactions at high pressures and temperatures by synchrotron radiation X-ray diffraction measurement; X-ray diffraction measurements of hydrogenation reactions of aluminum

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

Structural information of specimens can be obtained at high pressures and temperatures using a cubic-type multi-anvil press and synchrotron radiation X-ray diffraction measurements. This system enables us to clarify reaction mechanism at high pressures. In the present paper, energy dispersive and angle dispersive X-ray diffraction measurement systems are explained. Hydrogenation reaction of aluminum has been investigated via these methods, and the results are described. These methods are expected to be useful for crystal growth studies at high pressures and temperatures.