Synthesis of Niobium Carbides from Ferroniobium by Mechanochemical Method
| Autor: | Junya Kano, Fumio Saito, Nobuaki Sato, Takahiro Shiokawa, Solihin, Shigeru Suzuki, Hidetaka Suginobe |
|---|---|
| Rok vydání: | 2009 |
| Předmět: |
Materials science
Argon Mechanical Engineering Metallurgy Metals and Alloys Niobium chemistry.chemical_element Carbide Metal chemistry.chemical_compound chemistry Mechanics of Materials visual_art Materials Chemistry visual_art.visual_art_medium Niobium carbide Leaching (metallurgy) Graphite Ferroniobium |
| Zdroj: | ISIJ International. 49:458-462 |
| ISSN: | 1347-5460 0915-1559 |
| DOI: | 10.2355/isijinternational.49.458 |
| Popis: | A feasible study on a novel production process of niobium carbide (NbC) from its low cost resource ferroniobium at low temperature was examined by means of mechanochemical and subsequent chemical separation method. NbC powders as well as metallic iron (Fe) were synthesized from ferroniobium (FeNb) and graphite (C) powders by using a planetary mill at milling speed of more than 600 rpm with FeNb : C molar ratio of 1 : 1. Then NbC particles were effectively separated from the mixed powders by leaching with HCl after the heat-treatment of the mixed powders in argon. These experimental results were consistent with the thermodynamic prediction. |
| Databáze: | OpenAIRE |
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