Preparation of V–4Cr–4Ti Alloys from Mixed Oxides via Electro-Deoxidation Process in Molten Salt
V–4Cr–4Ti alloys exhibit important advantages as a candidate structural materials for fusion reactor first-walls and blanket applications. V–4Cr–4Ti alloys were prepared by direct electrochemical reduction of the solid mixture of V<sub>2</sub>O<sub>3</sub>, Cr<sub>2<...
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MDPI AG
2020-08-01
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| Series: | Metals |
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| Online Access: | https://www.mdpi.com/2075-4701/10/8/1067 |
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| author | Xiaozhou Cao Qiuyue Li Yuanyuan Shi Dong Wu Xiangxin Xue |
| author_facet | Xiaozhou Cao Qiuyue Li Yuanyuan Shi Dong Wu Xiangxin Xue |
| author_sort | Xiaozhou Cao |
| collection | DOAJ |
| description | V–4Cr–4Ti alloys exhibit important advantages as a candidate structural materials for fusion reactor first-walls and blanket applications. V–4Cr–4Ti alloys were prepared by direct electrochemical reduction of the solid mixture of V<sub>2</sub>O<sub>3</sub>, Cr<sub>2</sub>O<sub>3</sub> and TiO<sub>2</sub> in the molten CaCl<sub>2</sub>–NaCl eutectic at 1073 K. The influence of cell voltage, sintering temperature and electrolysis time on the electrolysis process are reported. The microstructure and phase compositions of the products were analyzed by scanning electron microscopy (SEM) and X-ray diffraction (XRD) during the electrolysis process. The results showed that V–4Cr–4Ti alloys can be obtained at the voltage of 3.1 V and the time of 0.5 h. Cr<sub>2</sub>O<sub>3</sub> was first reduced to Cr metal, while V<sub>2</sub>O<sub>3</sub> and TiO<sub>2</sub> was reduced to low-valence oxide of vanadium and titanium. The reduction rate increases with increasing cell voltage, with much perovskite oxide formed during the electrolysis process. |
| first_indexed | 2024-03-10T17:49:30Z |
| format | Article |
| id | doaj.art-0ba98572915b46d6ab37b0fdc3ce0780 |
| institution | Directory Open Access Journal |
| issn | 2075-4701 |
| language | English |
| last_indexed | 2024-03-10T17:49:30Z |
| publishDate | 2020-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Metals |
| spelling | doaj.art-0ba98572915b46d6ab37b0fdc3ce07802023-11-20T09:23:17ZengMDPI AGMetals2075-47012020-08-01108106710.3390/met10081067Preparation of V–4Cr–4Ti Alloys from Mixed Oxides via Electro-Deoxidation Process in Molten SaltXiaozhou Cao0Qiuyue Li1Yuanyuan Shi2Dong Wu3Xiangxin Xue4School of Metallurgy, Northeastern University, Shenyang 110819, ChinaSchool of Metallurgy, Northeastern University, Shenyang 110819, ChinaInstitute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, ChinaChinalco Shenyang Non-ferrous Metal Processing Co., Ltd., Shenyang 110108, ChinaSchool of Metallurgy, Northeastern University, Shenyang 110819, ChinaV–4Cr–4Ti alloys exhibit important advantages as a candidate structural materials for fusion reactor first-walls and blanket applications. V–4Cr–4Ti alloys were prepared by direct electrochemical reduction of the solid mixture of V<sub>2</sub>O<sub>3</sub>, Cr<sub>2</sub>O<sub>3</sub> and TiO<sub>2</sub> in the molten CaCl<sub>2</sub>–NaCl eutectic at 1073 K. The influence of cell voltage, sintering temperature and electrolysis time on the electrolysis process are reported. The microstructure and phase compositions of the products were analyzed by scanning electron microscopy (SEM) and X-ray diffraction (XRD) during the electrolysis process. The results showed that V–4Cr–4Ti alloys can be obtained at the voltage of 3.1 V and the time of 0.5 h. Cr<sub>2</sub>O<sub>3</sub> was first reduced to Cr metal, while V<sub>2</sub>O<sub>3</sub> and TiO<sub>2</sub> was reduced to low-valence oxide of vanadium and titanium. The reduction rate increases with increasing cell voltage, with much perovskite oxide formed during the electrolysis process.https://www.mdpi.com/2075-4701/10/8/1067V–4Cr–4Tifusion reactorelectrochemistryelectro-deoxidationmolten salt |
| spellingShingle | Xiaozhou Cao Qiuyue Li Yuanyuan Shi Dong Wu Xiangxin Xue Preparation of V–4Cr–4Ti Alloys from Mixed Oxides via Electro-Deoxidation Process in Molten Salt Metals V–4Cr–4Ti fusion reactor electrochemistry electro-deoxidation molten salt |
| title | Preparation of V–4Cr–4Ti Alloys from Mixed Oxides via Electro-Deoxidation Process in Molten Salt |
| title_full | Preparation of V–4Cr–4Ti Alloys from Mixed Oxides via Electro-Deoxidation Process in Molten Salt |
| title_fullStr | Preparation of V–4Cr–4Ti Alloys from Mixed Oxides via Electro-Deoxidation Process in Molten Salt |
| title_full_unstemmed | Preparation of V–4Cr–4Ti Alloys from Mixed Oxides via Electro-Deoxidation Process in Molten Salt |
| title_short | Preparation of V–4Cr–4Ti Alloys from Mixed Oxides via Electro-Deoxidation Process in Molten Salt |
| title_sort | preparation of v 4cr 4ti alloys from mixed oxides via electro deoxidation process in molten salt |
| topic | V–4Cr–4Ti fusion reactor electrochemistry electro-deoxidation molten salt |
| url | https://www.mdpi.com/2075-4701/10/8/1067 |
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