Thermodynamic properties of equilibrium phases in the Ag-Cu-S system below 500 K: Experimental study

Fiseha Tesfaye, Pekka Taskinen

Tutkimustuotos: Artikkeli kirjassa/raportissa/konferenssijulkaisussaKonferenssiartikkeliTieteellinenvertaisarvioitu

1 Sitaatiot (Scopus)

Abstrakti

Thermodynamics of the equilibrium phase assemblage Ag0.9Cu 1.1S-Cu2-xS-CuS have been studied by an EMF-method. The ternary phase was synthesized from the pure Cu2S and Ag2S in vacuum furnace at high-temperature and mixed with appropriate compositions of Cu2S and CuS to form the cathode electrode. The EMF-measurements were made on the solid-state galvanic cell Pt(-) | Ag | RbAg4I 5 | Ag0.9Cu1.1S-Cu2-xS-CuS | Pt(+), in a temperature range from 316 K to 498 K. Based on the measured EMF vs. T relations, thermodynamic functions (ΔfG°, Delta;fS° and Delta;fH°) of stromeyerite (Ag 0.9Cu1.1S) in equilibrium with Cu2-xS and CuS have been determined. The obtained experimental values have been compared with the available literature values. New experimentally determined thermodynamic properties of the solid solution (Ag,Cu)2Sss were determined.

AlkuperäiskieliEnglanti
OtsikkoEPD Congress 2014 - Held During TMS 2014 143rd Annual Meeting and Exhibition
KustantajaMinerals, metals and materials society
Sivut185-194
Sivumäärä10
ISBN (painettu)9781118889763
DOI - pysyväislinkit
TilaJulkaistu - 2014
OKM-julkaisutyyppiA4 Artikkeli konferenssijulkaisuussa
TapahtumaEPD Congress 2014 - TMS 2014 143rd Annual Meeting and Exhibition - San Diego, CA, United States
Kesto: 16 helmikuuta 201420 helmikuuta 2014

Julkaisusarja

NimiTMS Annual Meeting

Konferenssi

KonferenssiEPD Congress 2014 - TMS 2014 143rd Annual Meeting and Exhibition
Maa/AlueUnited States
KaupunkiSan Diego, CA
Ajanjakso16/02/1420/02/14

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