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Segregation and temperature effect on the atomic structure of Bi(30)Ga(70) liquid alloy
D Es Sbihi1, B Grosdidier, I Kaban
1Laboratoire de Physique des Milieux Denses, Institut de Chimie Physique et Matériaux, Université Paul Verlaine-Metz, 1 Boulevard Arago 57078 Metz Cedex 3, France.
Abstract:
We investigate the structure of liquid monotectic alloy Bi(30)Ga(70) above and below the critical point. The three-dimensional structure at 265 °C is modelled by means of the reverse Monte Carlo simulation technique using neutron and x-ray diffraction experimental data. It is shown that atomic segregation on the short-range scale exists in the liquid Bi(30)Ga(70) slightly above the critical temperature (T(C) = 262 °C). We present also the structure factors of Bi(30)Ga(70) liquid alloy under the critical point at 240 and 230 °C obtained with neutron diffraction to highlight the temperature effect in the atomic structure.
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