Experimentally Determined Phase Diagram for the Barium Sulfide-Copper(I) Sulfide System Above 873 K (600 °C)
Journal Article
·
· Metallurgical and Materials Transactions B, Process Metallurgy and Materials Processing Science
- Massachusetts Institute of Technology, Department of Chemical Engineering (United States)
- Pan Pacific Copper Co., Ltd (Japan)
- The University of Tokyo, Institute of Industrial Science (Japan)
- Massachusetts Institute of Technology, Department of Material Science and Engineering (United States)
The phase diagram of the barium sulfide-copper(I) sulfide system was investigated above 873 K (600 °C) using a custom-built differential thermal analysis (DTA) apparatus. The melting point of barium sulfide was determined utilizing a floating zone furnace. Four new compounds, Ba{sub 2}Cu{sub 14}S{sub 9}, Ba{sub 2}Cu{sub 2}S{sub 3}, Ba{sub 5}Cu{sub 4}S{sub 7}, and Ba{sub 9}Cu{sub 2}S{sub 10}, were identified through quench experiments analyzed with wavelength dispersive X-ray spectroscopy (WDS) and energy dispersive X-ray analysis (EDS). A miscibility gap was observed between 72 and 92 mol pct BaS using both DTA experiments and in situ melts observation in a floating zone furnace. A monotectic was observed at 94.5 mol pct BaS and 1288 K (1015 °C).
- OSTI ID:
- 22856059
- Journal Information:
- Metallurgical and Materials Transactions B, Process Metallurgy and Materials Processing Science, Journal Name: Metallurgical and Materials Transactions B, Process Metallurgy and Materials Processing Science Journal Issue: 6 Vol. 48; ISSN 1073-5615; ISSN MTBSEO
- Country of Publication:
- United States
- Language:
- English
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