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Zeitschrift für Naturforschung A

A Journal of Physical Sciences

Editor-in-Chief: Holthaus, Martin

Editorial Board: Fetecau, Corina / Kiefer, Claus


IMPACT FACTOR 2017: 1.414

CiteScore 2018: 1.15

SCImago Journal Rank (SJR) 2018: 0.370
Source Normalized Impact per Paper (SNIP) 2018: 0.431

Online
ISSN
1865-7109
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Volume 36, Issue 12

Issues

Equilibrium of EuS with Gas Mixtures of H2S,H2 and CO2

J. Hauck
Published Online: 2014-06-02 | DOI: https://doi.org/10.1515/zna-1981-1206

Abstract

EuS and EU2O3 powder samples were equilibrated with H2S-H2-CO2 gas mixtures in the temperature range 700-1500 °C. Since the sulfur and oxygen fugacities of the gas mixtures - as calculated from thermodynamic data - can vary by about 107 , EuS of different stoichiometrics may be produced. At higher oxygen and lower sulfur fugacities EuS is oxidized to EU2O2S. The border line between the two phases can be fitted by the equation log(f(S2)/atm.) = 2 log(f(O2)/ atm.) + 48300/T - 9.3 and compared to border lines of other phases of the Eu-O-S system, which can be calculated from thermodynamic data.

About the article

Received: 1981-11-12

Published Online: 2014-06-02

Published in Print: 1981-12-01


Citation Information: Zeitschrift für Naturforschung A, Volume 36, Issue 12, Pages 1309–1314, ISSN (Online) 1865-7109, ISSN (Print) 0932-0784, DOI: https://doi.org/10.1515/zna-1981-1206.

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© 1946 – 2014: Verlag der Zeitschrift für Naturforschung. This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License. BY-NC-ND 3.0

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