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- Title
Phase Diagram of the Sn-As-Ge System.
- Authors
Semenova, Galina V.; Proskurina, Elena Yu.; Sushkova, Tatiana P.; Semenov, Victor N.
- Abstract
The paper presents the phase diagram of the Sn-As-Ge system. The diagram of polythermal Sn-GeAs section was constructed using the results of X-ray powder diffraction analysis and differential thermal analysis. We found that in a concentration interval with arsenic content of less than 50 mol%, four-phase peritectic equilibria L + SnAs ↔ GeAs + Sn4As3 (834 К) and L + GeAs ↔ Ge + Sn4As3 (821 К) are present. When the temperature is close to the melting point of pure tin, non-variant equilibrium with tin, germanium and Sn4As3 is implemented as well. The study of Sn0.39As0.61-Ge0.28As0.72, SnAs-Ge0.4As0.6 and SnAs-GeAs2 sections and elaboration of the type of the SnAs-GeAs phase diagram demonstrated that polythermal sections SnAs-GeAs and SnAs-GeAs2 can perform phase subsolidus demarcation of the phase diagram of the Sn-As-Ge system. There are also invariant peritectic equilibria L + GeAs2 ↔ GeAs + SnAs (840 К) and L + As ↔ SnAs + GeAs2 (843 К) in the system.
- Subjects
PHASE diagrams; GERMANIUM compounds; TIN compounds; ARSENIDES; X-ray powder diffraction
- Publication
Acta Chimica Slovenica, 2018, Vol 65, Issue 3, p662
- ISSN
1318-0207
- Publication type
Article
- DOI
10.17344/acsi.2018.4333