金属材料研究への応用

抄録

Applications of synchrotron radiations to metals research are reviewed regarding structure and surface analysis. Synchrotron radiations have great advantages in structure analysis especially by X-ray topography, EXAFS and time-resolution experiments. Dynamic in situ observations by X-ray topography have provided interesting information on the progress of recrystallization and grain boundary migration in metals. Observations of substructures and magnetic domains by the present authors are also included. EXAFS gives the atomic configurations in metallic glasses and that of alloying elements of crystalline metals. Laser annealing of silicon and crystallization of metallic glasses can be followed by the time-resolution experiments. Interesting results obtained recently by the techniques for surface analysis such as surface EXAFS, XRF, UPS, XPS and AES are presented, and the authors' study on high sensitive analysis by AES is described. Synchrotron radiations are expected to expand their applications as sophisticated and effective means for internal and surface analysis in the field of metals and materials science.