|About this Abstract
||2018 TMS Annual Meeting & Exhibition
||Materials Processing Fundamentals
||Thermodynamic properties of magnetic semiconductors Ag2FeSn3S8 and Ag2FeSnS4 determined by the EMF method
||Mykola Moroz, Fiseha Tesfaye, Pavlo Demchenko, Myroslava Prokhorenko, Daniel Lindberg, Oleksandr Reshetnyak, Leena Hupa
|On-Site Speaker (Planned)
Phase equilibria and thermodynamics in the Ag2SnS3–SnS–Sn2S3–FeS system were investigated using differential thermal analysis, X-ray diffraction, and EMF methods. Determined phase relations were used to express the forming chemical reactions for compounds Ag2FeSn3S8 and Ag2FeSnS4. The forming chemical reactions were performed by applying electrochemical cells of the types: (–) C | Ag | Ag3GeS3I glass | Ag2FeSn3S8, SnS, Sn2S3, FeS | C (+) and (–) C | Ag | Ag3GeS3I glass | Ag2FeSnS4, SnS, Ag2FeSn3S8, FeS | C (+). Based on the measured EMF vs. temperature relations, experimental thermodynamic data of the quaternary phases Ag2FeSn3S8 and Ag2FeSnS4 were derived for the first time.
||Planned: None Selected