QUENCHED GATEFE ALLOYS NEAR THE GA20TE80 COMPOSITION

Rapidly quenched samples of Ga-Te and Ga-Te-Fe were obtained from the liquid, with a piston and anvil device, in a composition near the Ga6T e94 eutectic. X-ray diffraction with Cu (K alpha) radiation and Mossba uer spectroscopy at room temperature with a Co-57 (Rh) source were use d to determine the structure of the samples. Either amorphous or parti ally amorphous structures were observed in the binary samples while pa rtially amorphous structures with FeTe2 precipitates were observed in the ternary samples. The glass forming tendency is analyzed by compari ng the amount of amorphous phase and crystalline phases present in sam ples with and without iron. (C) 1998 Elsevier Science B.V. All rights reserved.