Thermodynamic Properties of Layered Tetradymite-like Compounds of the Ag–Ge–Sb–Te System

M. Moroz*, F. Tesfaye, P. Demchenko, M. Prokhorenko, D. Lindberg, O. Reshetnyak, L. Hupa

*Tämän työn vastaava kirjoittaja

Tutkimustuotos: Artikkeli kirjassa/konferenssijulkaisussaChapterScientificvertaisarvioitu

Abstrakti

The phase equilibria of the Ag–Ge–Sb–Te system in the part Ag8GeTe6–Ge–GeTe–Sb2Te3 were investigated by the electromotive force (EMF) method. The determined phase relations were used to express the chemical reactions. The potential-forming reactions were performed by applying electrochemical cells (−) C | Ag | Ag2GeS3-glass | D | C (+), where C is graphite, Ag2GeS3-glass is the fast purely Ag+ ions conducting electrolyte, and D is an equilibrium mixture of phases. According to the experimental data on the EMF versus temperature of each electrochemical cells, analytical equations for the Gibbs energies of GeSb8Te13, GeSb6Te10, GeSb4Te7, GeSb2Te4, Ge2Sb2Te5, Ge3Sb2Te6, and Ge4Sb2Te7 compounds were obtained. The thermodynamic properties of silver-saturated tetradymite-like compounds have been calculated for the first time. A good correspondence between experimental values and structure data reported in the literature has been established.

AlkuperäiskieliEnglanti
OtsikkoMinerals, Metals and Materials Series
Sivut275-287
Sivumäärä13
DOI - pysyväislinkit
TilaJulkaistu - 1 tammikuuta 2020
OKM-julkaisutyyppiA3 Kirjan osa tai toinen tutkimuskirja

Julkaisusarja

NimiMinerals, Metals and Materials Series
ISSN (painettu)2367-1181
ISSN (elektroninen)2367-1696

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  • Siteeraa tätä

    Moroz, M., Tesfaye, F., Demchenko, P., Prokhorenko, M., Lindberg, D., Reshetnyak, O., & Hupa, L. (2020). Thermodynamic Properties of Layered Tetradymite-like Compounds of the Ag–Ge–Sb–Te System. teoksessa Minerals, Metals and Materials Series (Sivut 275-287). (Minerals, Metals and Materials Series). https://doi.org/10.1007/978-3-030-36556-1_23