On the Stucture of Fe-P Amorphous Alloys Prepared by Electrodeposition and Melt Spinning Methods

Fe-P metallic glass samples (14.7-22.9 at. % P) prepared by electrodeposition and melt-spinning technique were studied by using the angle dispersive X-ray diffraction and the Mössbauer spectroscopy. The differences between the samples prepared by different methods are very small: The electrodeposited samples have somewhat broader nearest neighbour peaks in the radial distribution functions, broader hyperfine field distributions and smaller structural disorder parameters. The average nearest neighbour coordinatination numbers are also a little bit larger for electrodeposited than for melt-quenched alloys. The results suggest that the electrodeposited samples are more inhomogeneous than the melt-quenched ones. Some estimations are made concerning the nature and characteristic size of the inhomogeneities.