JAXA Repository / AIREX 未来へ続く、宙(そら)への英知

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titleEffects of gravitational level & magnetic field flux on dendritic growth process of electrodeposited copper
Other Title金属電析形態に及ぼす重力レベル及び磁場の影響
Author(jpn)若月 孝夫; 本山 宗主; 松島 永佳; 日下 英史; 福中 康博; 石井 隆次; 栗林 一彦
Author(eng)Wakatsuki, Takao; Motoyama, Munekazu; Matsushima, Hisayoshi; Kusaka, Eishi; Fukunaka, Yasuhiro; Ishii, Ryuji; Kuribayashi, Kazuhiko
Author Affiliation(jpn)京都大学 大学院エネルギー科学研究科; 京都大学 大学院エネルギー科学研究科; 京都大学 大学院エネルギー科学研究科; 京都大学 大学院エネルギー科学研究科; 京都大学 大学院エネルギー科学研究科; 京都大学 大学院エネルギー科学研究科; 宇宙航空研究開発機構 宇宙科学研究本部
Author Affiliation(eng)Kyoto University Graduate School of Energy Science; Kyoto University Graduate School of Energy Science; Kyoto University Graduate School of Energy Science; Kyoto University Graduate School of Energy Science; Kyoto University Graduate School of Energy Science; Kyoto University Graduate School of Energy Science; Japan Aerospace Exploration Agency Institute of Space and Astronautical Science
Issue Date2005-03
PublisherInstitute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA/ISAS)
宇宙航空研究開発機構宇宙科学研究本部
Publication title宇宙利用シンポジウム 第21回 平成16年度
Space Utilization Research: Proceedings of the Twenty-first Space Utilization Symposium
Start page55
End page58
Publication date2005-03
Languageeng
AbstractCu nanowire arrays were electrodeposited with a template of polycarbonate (PC) filter 6 to 10 micrometers thick. Nanopore size was varied from 200 to 15 nm in diameter. Pt-Pd alloy film was sputtered on one side of PC filter and then used as cathode in 0.6 M CuSO4 aqueous solution (pH = 2). Potentiostatic electrodeposition at - 400 mV vs. Cu reference electrode was conducted in two kinds of electrolytic cell configurations, Cathode over Anode (C/A) and Anode over Cathode (A/C). It was also engaged in a strong magnetic field. The transient variation of cathodic current clearly showed four stages in both cell configurations. In Stage 2, the cathodic current increased in A/C configuration, while it decreased in C/A. The difference of cathodic current variation between two configurations was smaller with smaller sized pores. Superposition of magnetic field introduces much shorter duration period of the second stage. Cu nanowire arrays were successfully electrochemical-processed with the aspect ratio of 50 to 400. Furthermore, 15 nm diameter Cu nanowire was confirmed with the lattice image pattern by TEM (Transmission Electron Microscopy) technique. Much better crystallinity may be expected by controlling the gravitational level as well as the magnetic field flax, besides the improved template technique.
Keywordselectrodeposition; aqueous solution; electrolytic cell; gravitation effect; microstructure; dendritic growth process; copper nanowire array; potentiostatic method; magnetic field; mass transfer; MHD convection; 電着; 水溶液; 電解槽; 重力効果; 微細構造; 樹枝状成長過程; 銅ナノワイヤー配列; 定電圧法; 磁場; 物質移動; MHD対流
Document TypeConference Paper
JAXA Categoryシンポジウム・研究会
SHI-NOAA0048095013
URIhttps://repository.exst.jaxa.jp/dspace/handle/a-is/51823


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