A Novel Thermic Process for Producing V-Based Solid Solution Type Hydrogen Storage Alloy
| Autor: | Jun Shi, Makoto Tsukahara, Seiji Sakurai, Hideo Yoshinaga, Yoshihisa Kamiya, Akio Kawabata, Hiroyuki T. Takeshita, K. Takahashi, Nobuhiro Kuriyama, Tetsuo Sakai |
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| Rok vydání: | 2000 |
| Předmět: |
Materials science
Mechanical Engineering Inorganic chemistry Metallurgy Alloy Metals and Alloys Deoxidization chemistry.chemical_element Vanadium engineering.material Condensed Matter Physics Mischmetal Nickel Hydrogen storage chemistry Mechanics of Materials Scientific method Materials Chemistry engineering General Materials Science Cobalt Titanium Solid solution |
| Zdroj: | Journal of the Japan Institute of Metals. 64:221-226 |
| ISSN: | 1880-6880 0021-4876 |
| DOI: | 10.2320/jinstmet1952.64.4_221 |
| Popis: | The performance of a high hydrogen capacity alloy, V-16%Ti-12%Ni-1.4%Nb-0.96%Co-2.8%Ta, is sensitively influenced by dissolved aluminum and oxygen, both of which can be removed from vanadium by a refining process, but the process currently used is too expensive. It is necessary to develop a process to remove these impurities at a reasonable cost. We propose a new method for production of the alloy. A V-15%Ni-1.8%Nb precursor with a low enough level of aluminum was produced by alumino-thermic reduction from a mixture of V 2 O 5 , Nb 2 O 5 and nickel. Subsequently, a V-16%Ti-12%Ni-1.4%Nb-0.96%Co-2.8%Ta alloy was obtained by alloying the precursor and the other constituents of titanium, cobalt and tantalum, and by adding mischmetal as a reducing agent to remove oxygen to a low enough level. It was demonstrated that, by the method described here, the vanadium-based alloy could be produced at a reasonable cost. |
| Databáze: | OpenAIRE |
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