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The cubic face-centered structure of LiAl (, at ) transforms into a tetragonal body-centered structure (I41/amd, , at ). This first-order phase transition at about during heating is probably the reason for the so-called “ anomalies” in some physical properties like specific heat, electrical resistivity and nuclear-spin lattice relaxation. This transition seems to be correlated with the composition Li:Al of the alloy and the amount of Li vacancies.  相似文献   

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