Phase Equilibria in the Ag2S–Sb2S3–SnS2 System and the Novel Quaternary Chalcogenide Ag11Sb3SnS12

Interactions of Ag and Sb(III) and Sn(IV) sulfides were investigated by x-ray diffraction, differential thermal analysis and microstructure analysis methods. The quaternary compound Ag 11 Sb 3 SnS 12 was found for the first time in the Ag 2 S-Sb 2 S 3 -SnS 2 system at 500 K (227 °C) at the intersect...

Full description

Saved in:
Bibliographic Details
Published in:Journal of phase equilibria and diffusion 2024-06, Vol.45 (3), p.723-731
Main Authors: Berezniuk, O. P., Kogut, Y. M., Gulay, L. D., Piskach, L. V.
Format: Article
Language:English
Subjects:
Antimony
Ceramics
Composites
Crystallization
Crystallography and Scattering Methods
Differential thermal analysis
Engineering Thermodynamics
Glass
Heat and Mass Transfer
Liquidus
Metallic Materials
Natural Materials
Original Research Article
Phase equilibria
Physics
Physics and Astronomy
Silver
Solid solutions
Ternary systems
Thermodynamics
Tin
Tin disulfide
Citations: Items that this one cites
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Interactions of Ag and Sb(III) and Sn(IV) sulfides were investigated by x-ray diffraction, differential thermal analysis and microstructure analysis methods. The quaternary compound Ag 11 Sb 3 SnS 12 was found for the first time in the Ag 2 S-Sb 2 S 3 -SnS 2 system at 500 K (227 °C) at the intersection of AgSbS 2 -Ag 8 SnS 6 and Ag 3 SbS 3 -Ag 2 SnS 3 . The compound melts congruently at 920 K (647 °C) and has a polymorphous transition at 646 K (373 °C). The quasi-ternary system is characterized by solid solution ranges of the binary compounds Ag 2 S, Sb 2 S 3 , SnS 2 , ternary Ag 3 SbS 3 , AgSbS 2 , Ag 8 SnS 6 , Ag 2 SnS 3 and quaternary compound Ag 11 Sb 3 SnS 12 . The separation of the composition triangle into 10 single-phase, 18 two-phase, and 9 three-phase fields was established. Seven vertical sections were investigated of which five are quasi-binary (Ag 3 SbS 3 -Ag 8 SnS 6 , Ag 3 SbS 3 -Ag 2 SnS 3 , AgSbS 2 -Ag 8 SnS 6 , AgSbS 2 -Ag 2 SnS 3 , AgSbS 2 -SnS 2 ). The AgSbS 2 -Ag 4 Sn 3 S 8 and AgSbS 2 -Sb 2 SnS 5 sections are non-quasi-binary due to peritectic formation of Ag 4 Sn 3 S 8 and Sb 2 SnS 5 . The liquidus surface projection of the Ag 2 S-Sb 2 S 3 -SnS 2 system consists of 10 fields of primary crystallization of the solid solutions α-Ag 2 S, β-Sb 2 S 3 , γ-SnS 2 , δ-Ag 3 SbS 3 , ε′-AgSbS 2 , ζ-Ag 8 SnS 6 , η-Ag 2 SnS 3 , σ-Ag 11 Sb 3 SnS 12 and compounds Ag 4 Sn 3 S 8 and Sb 2 SnS 5 . These are separated by curves of monovariant equilibria that converge at 9 ternary invariant points (7 eutectic (E 1 -E 7 ) and 2 quasi-peritectic (U 1 , U 2 )).
ISSN:1547-7037
1863-7345
1934-7243
DOI:10.1007/s11669-024-01126-7