Metallurgical and materials transactions. B, Process metallurgy and materials processing science, 2018-04, Vol.49 (2), p.783-789
2018
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Details
- Autor(en) / Beteiligte
- Titel
- Manufacturing of Dysprosium-Iron Alloys by Electrolysis in Fluoride-Based Electrolytes: Oxide Solubility Determinations
- Ist Teil von
- Metallurgical and materials transactions. B, Process metallurgy and materials processing science, 2018-04, Vol.49 (2), p.783-789
- Ort / Verlag
- New York: Springer US
- Erscheinungsjahr
- 2018
- Quelle
- Alma/SFX Local Collection
- Beschreibungen/Notizen
- Electrolytic production of light rare earth elements and alloys takes place in a fluoride-based electrolyte using rare earth oxides as raw material. The optimization of this method, mainly in terms of the energy efficiency and environmental impact control, is rather challenging. Anode effects, evolution of fluorine-containing compounds, and side cathode reactions could largely be minimized by a good control of the amount of rare earth oxide species dissolved in the fluoride-based electrolyte and their dissolution rate. The oxide content of the fluoride melts REF 3 -LiF (RE = Nd, Dy) at different compositions and temperatures were experimentally determined by carbothermal analysis of melt samples. The highest solubility values of oxide species, added as Dy 2 O 3 and Dy 2 (CO 3 ) 3 , were obtained to be of ca. 3 wt pct (expressed as Dy 2 O 3 ) in the case of the equimolar DyF 3 -LiF melt at 1323 K (1050 °C). The oxide saturation values increased with the amount of REF 3 present in the molten bath and the working temperature.
- Sprache
- Englisch
- Identifikatoren
- ISSN: 1073-5615eISSN: 1543-1916DOI: 10.1007/s11663-017-1159-6Titel-ID: cdi_osti_scitechconnect_22858005
- Format
- –
- Schlagworte
- Alloying elements, Anode effect, ANODES, CARBONATES, CATHODES, Characterization and Evaluation of Materials, Chemistry and Materials Science, CONTROL, DISSOLUTION, DYSPROSIUM ALLOYS, Dysprosium base alloys, DYSPROSIUM FLUORIDES, DYSPROSIUM OXIDES, ELECTROLYSIS, ELECTROLYTES, ENERGY EFFICIENCY, Environmental impact, ENVIRONMENTAL IMPACTS, Ferrous alloys, Fluorides, FLUORINE, INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY, IRON ALLOYS, Iron and steel making, Lithium fluoride, LITHIUM FLUORIDES, MANUFACTURING, MATERIALS SCIENCE, Melts, Metallic Materials, Metallurgy, Nanotechnology, OPTIMIZATION, Rare earth compounds, Rare earth elements, Rare earth oxides, RAW MATERIALS, Solubility, Structural Materials, Surfaces and Interfaces, Thin Films