Abstract
The total structure factors of amorphous Ti 84Si 16 have been evaluated by X-ray diffraction as well as by neutron diffraction. From the combined X-ray and neutron data the TiTi and TiSi atomic pair correlation functions and the corresponding distances and coordination numbers have been derived. The results show that the short-range order is characterized by chemical bonding between the Ti and the Si atoms. On the basic assumption that in metal-metalloid glasses there is no metalloid-metalloid nearest-neighbour contact, the density-concentration correlation functions are discussed, and it is shown that besides the chemical ordering effect there is a marked size effect in amorphous Ti 84Ti 16. The results of this study are compared with those of other metal-metalloid glasses, and common features of this type of amorphous alloys are shown.
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