期刊
JOURNAL OF PHASE EQUILIBRIA AND DIFFUSION
卷 43, 期 1, 页码 32-42出版社
SPRINGER
DOI: 10.1007/s11669-022-00937-w
关键词
Ag-Se-Sn phase diagram; Ag8SeSn6 phase; SEM-EDX; XRD
资金
- Czech Science Foundation of Czech Republic [GA 18-25660J]
The ternary phase diagram Ag-Se-Sn was experimentally re-investigated, aiming to enhance the understanding of phase equilibria. Long-term annealed samples were used to study the isothermal sections at 250, 400 and 550 degrees C. An intermediate liquid region was observed at 550 degrees C, consistent with previous research. Analysis of the annealed samples confirmed a wide homogeneity range in the ternary intermetallic phase Ag8Se6Sn at 250 degrees C. Another ternary phase AgSe2Sn was observed at all temperatures studied. Complete isothermal sections at the three temperatures were constructed.
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 degrees C using long-term annealed samples. An intermediate liquid region was observed at 550 degrees 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 degrees 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 degrees C were constructed in the scope of this paper.
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