Thermodynamic Properties of Magnetic Semiconductors Ag2FeSn3S8 and Ag2FeSnS4 Determined by the EMF Method

A3 Book section, Chapters in research books


Internal Authors/Editors


Publication Details

List of Authors: Mykola Moroz, Fiseha Tesfaye, Pavlo Demchenko, Myroslava Prokhorenko, Daniel Lindberg, Oleksandr Reshetnyak, Leena Hupa
Editors: Lambotte G., Lee J., Allanore A., Wagstaff S.
Publication year: 2018
Publisher: Springer
Book title: Materials Processing Fundamentals 2018. TMS 2018
Title of series: The Minerals, Metals & Materials Series book series (MMMS)
Number in series: 2
Start page: 87
End page: 98
ISBN: 978-3-319-72130-9
eISBN: 978-3-319-72131-6


Abstract

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.


Keywords

EMF method, Magnetic semiconductors, Thermodynamic properties

Last updated on 2019-23-08 at 06:00