DOI: https://doi.org/10.30970/jps.02.331
POLYANIONIC COMPLEXES AND SHORT RANGE ORDER IN LIQUID Li-BASED ALLOYS
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Journal of Physical Studies 2(3), 331–334 (1998)
DOI: https://doi.org/10.30970/jps.02.331 POLYANIONIC COMPLEXES AND SHORT RANGE ORDER IN LIQUID Li-BASED ALLOYS |
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S. Mudry
The Ivan Franko State University of Lviv, Physics of Metals Department,
8 Kyrylo i Mefodii Str., Lviv, UA–290005, Ukraine
The possibility of polyanionic cluster existence in liquid Li–Sn and Li–Pb alloys has been studied. Using the experimental structure factors the partial ones have been calculated in assumption of additive law for the intensity scattered from each structural unit. It is shown that in liquid near–eutectic Li–Pb alloys the tetrahedral polyanionic clusters, as well as chemically ordered atomic groups of Li$_{4}$Pb, can be responsible for the micrononhomogeneous structure in liquid state. Liquid Li–Sn alloys are characterized only by the influence of the chemically ordered Li$_{3}$Pb associates in near–eutectic alloys. The probability to form the tetrahedral complexes in molten alloys of these systems is significantly less in comparison with the Li–Pb melts.