Abstract

In order to improve the simple crystalline embryo model of amorphous metals proposed previously, the composite type embryo model for amorphous Fe-B alloy is constructed on a computer by assuming that the b.c.c. like embryos and chemical clusters of Fe3B type coexist. The interference function and pair correlation function are also calculated. To make a reasonable comparison with the experimental data, a new process of Fourier transformation, that takes account of the truncation effect, is successfully applied to the structural model. The two functions are in good agreement with experiment when the embryo size is taken to be as small as 10 A in diameter corresponding to the 15 core atoms cluster. It is concluded that the crystalline embryo model satisfactorily describes the amorphous structure.

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