NONSTOICHIOMETRY IN PbCuSbS3 COMPOUND

O.M.Aliyev, D.S.Ajdarova, S.T.Bayramova, S.I.Aliyeva, V.M.Ragimova

The CuSbS₂–PbS system has been studied in the interval 0–100 mol.% PbS composition and its diagram state has been ploted. The formation of the quartenary compound PbCuSbS₃congruently melting at 1125±5 K has been proved. It is established that the compound PbCuSbS₃ is a phase of changing composition and its field homogeneousity is in the interval 46–52% PbS.

Keywords : nonstoichiometry, phase diagram, X-ray analysis, density

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