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Experimental Phase Diagram of the Ag-Se-Sn System at 250, 400 and 550 °C

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Abstract

The ternary phase diagram Ag-Se-Sn was re-investigated experimentally. The current study was designed to contribute to a better understanding of phase equilibria in isothermal sections at 250, 400 and 550 °C using long-term annealed samples. An intermediate liquid region was observed at 550 °C in agreement with older published vertical sections of the ternary phase diagram Ag-Se-Sn. A huge homogeneity range in ternary intermetallic phase Ag8Se6Sn at 250 °C was determined by SEM/EDX analysis of long term annealed samples and confirmed by XRD measurements. A second ternary phase AgSe2Sn was observed at each of the studied temperatures. Complete isothermal sections at 250, 400 and 550 °C were constructed in the scope of this paper.

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Funding

This study was funded by Czech Science Foundation of Czech Republic (Grant Number GA 18-25660J). Authors would like to thank Pavla Roupcova from the Institute of Physics of Materials CAS for the technical help with analysis.

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Authors and Affiliations

  1. Institute of Physics of Materials, The Czech Academy of Sciences, Zizkova 22, 616 00, Brno, Czech Republic

    Ondrej Zobac & Ales Kroupa

  2. Department of Inorganic Chemistry - Functional Materials, University of Vienna, Währinger Straße 42, 1090, Vienna, Austria

    Klaus W. Richter

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  1. Ondrej Zobac
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Correspondence to Ondrej Zobac.

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Zobac, O., Richter, K.W. & Kroupa, A. Experimental Phase Diagram of the Ag-Se-Sn System at 250, 400 and 550 °C. J. Phase Equilib. Diffus. 43, 32–42 (2022). https://doi.org/10.1007/s11669-022-00937-w

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