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CaCl2 溶融塩中での TiO2 直接還元における電流密度の影響

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J. Jpn. Inst. Met. 72(12) 916.pdf759.12 kBPDFView/Open
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Title: CaCl2 溶融塩中での TiO2 直接還元における電流密度の影響
Other Titles: Influence of Current Density to Direct Reduction of TiO2 in Molten CaCl2
Authors: 小林, 圭一1 Browse this author
岡, 佑一2 Browse this author
鈴木, 亮輔3 Browse this author →KAKEN DB
Authors(alt): Kobayashi, Keiichi1
Oka, Yuichi2
Suzuki, Ryosuke O.3
Keywords: titanium oxide
current density
molten salt
calcium chloride
Issue Date: 1-Dec-2008
Publisher: 日本金属学会
Journal Title: 日本金属学会誌
Journal Title(alt): Journal of the Japan Institute of Metals
Volume: 72
Issue: 12
Start Page: 916
End Page: 920
Publisher DOI: 10.2320/jinstmet.72.916
Abstract: TiO2 was successfully reduced at 1223 K by calcium, which was deposited due to the molten salt electrolysis of CaO dissolved in CaCl2. Changing the area of electrodes and the electrodes distances, the current density and the Ca concentration near the cathode were varied, respectively. At the initial stage of reduction, metallic Ti powder with the lower oxygen concentration was obtained at the lower current density, where most of electrochemically deposited Ca was efficiently used for the reduction. Meanwhile, at the final stage of reduction/deoxidation, Ti powder with the much lower oxygen concentration were obtained at the higher current density, where the higher Ca concentration was available near the cathode. On order to obtain the metallic powder with the low oxygen content, the formed Ca can penetrate even into the inner part of the sintered oxide.
Type: article
Appears in Collections:工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 鈴木 亮輔

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