Morphologic and crystallographic studies on electrochemically formed chromium nitride films

被引:1
作者
Amezawa, Koji
Goto, Takuya
Tsujimura, Hiroyuki
Uchimoto, Yoshiharu
Hagiwara, Rika
Tomii, Yoichi
Ito, Yasuhiko
机构
[1] Tohoku Univ, Grad Sch Environm Studies, Aoba Ku, Sendai, Miyagi 9808579, Japan
[2] Kyoto Univ, Grad Sch Energy Sci, Sakyo Ku, Kyoto 6068501, Japan
[3] Kyoto Univ, Grad Sch Human & Environm Studies, Sakyo Ku, Kyoto 6068501, Japan
[4] Doshisya Univ, Fac Engn, Dept Environm Syst Sci, Kyotanabe, Kyoto 6100321, Japan
关键词
chromium nitride; electrochemical nitriding; molten salt; nitride film; morphology;
D O I
10.1016/j.electacta.2007.06.013
中图分类号
O646 [电化学、电解、磁化学];
学科分类号
081704 ;
摘要
Chromium nitride films were prepared by anodically oxidizing nitride ions at 0.4-1.5 V versus Li+/Li on chromium substrates in molten LiCl-KCI-Li3N systems at 723 K. A crystalline Cr2N film was successfully prepared at 0.4-4.4 V, and was thicker at more positive electrolytic potential. At 1.5 V, a Cr-N film could be also obtained, but its growth rate was relatively low. The film prepared at 1.5 V consisted of two distinctive layers. The surface layer was amorphous Cr-N containing crystalline CrN particles, and the inner layer was crystalline CrN. It was considered the existence of the amorphous phase suppressed the film growth. (C) 2007 Elsevier Ltd. All rights reserved.
引用
收藏
页码:122 / 126
页数:5
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