EXAFS AND MOSSBAUER STUDY OF THE CRYSTALLIZATION OF FE91ZR9 METALLIC-GLASS

The crystallization process of the Fe91Zr9 amorphous alloy has been fo llowed by means of two experimental techniques, EXAFS and Mossbauer sp ectroscopy. X-ray absorption spectra on Fe K-edge and Mossbauer spectr a of six samples with different degrees of crystallization have been m easured at room temperature in order to obtain information about the s tructural changes that take place. From the beginning of the crystalli zation process it is clearly seen that a crystalline phase with a bcc- type structure appears. From the obtained data we can conclude that th is phase is nearly pure bcc-Fe, with small amount of impurities in its structure.