Lithium - Antimony - Selenium

All the published work on the Li-Sb-Se ternary system relates to the Li₂Se-Sb₂Se₃ section from 21 to 40 at.% Sb. The congruently melting compound LiSbSe₂ was first prepared by [68Ber] who gave a measured density value of 5.96 g•cm^-3. DTA on heating at 10°C min^-1 showed that there is a eutectic between βLiSbSe₂ and the Sb₂Se₃ solid solution, Figure 1 [71Ber, 71Laz]. An allotropic transformation of LiSbSe₂ was detected at 220°C. [73Baz1] gave a value of 35.9 at.% Sb for the eutectic and 38.8 at.% Sb for the limit of the Sb₂Se₃ solid solution at room temperature. Scaling from the phase diagram in [71Ber, 71Laz], referenced by [73Baz1] gives the eutectic composition at 36.4 at.% Sb. ...