Examining phase transitions by high-energy X-ray diffraction

Yoneda, Yasuhiro   

The bending magnet beamlines of SPring-8 can provide wide band X-rays, which critical energy is 28.9 keV. One can performs the high-energy X-ray diffraction measurements by combining X-ray focusing system of a crystal bender. We examined a coherence part in ceramics samples by using the large penetration depth of the high-energy X-rays. For example, we found structural phase transitions in (Na,K,Li)NbO and (BiNa)TiO. We also applied this technique to a surrogate materials for nitride fuel of (Dy,Zr)N.