Electrochemical Formation of Dy-Ni Alloys in Molten LiF-CaF2-DyF3

被引：45

作者：

Kobayashi, Seitaro ^{[1
]}

Nohira, Toshiyuki ^{[1
]}

Kobayashi, Katsutoshi ^{[1
]}

Yasuda, Kouji ^{[1
,2
]}

Hagiwara, Rika ^{[1
]}

Oishi, Tetsuo ^{[3
]}

Konishi, Hirokazu ^{[4
]}

机构：

[1] Kyoto Univ, Grad Sch Energy Sci, Sakyo Ku, Kyoto 6068501, Japan

[2] Kyoto Univ, Environm Safety & Hlth Org, Sakyo Ku, Kyoto 6068501, Japan

[3] Natl Inst Adv Ind Sci & Technol, Tsukuba, Ibaraki 3058569, Japan

[4] Osaka Univ, Grad Sch Engn, Suita, Osaka 5650871, Japan

来源：

JOURNAL OF THE ELECTROCHEMICAL SOCIETY | 2012年 / 159卷 / 12期

关键词：

CRYSTAL STRUCTURES; PHASE-CONTROL; SYSTEM; FILMS;

D O I：

10.1149/2.053212jes

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The electrochemical formation of Dy-Ni alloys was investigated in a molten LiF-CaF2-DyF3 (0.30 mol%) system at 1123 K. Cyclic voltammetry and open-circuit potentiometry indicated the formation of several phases of Dy-Ni alloys. Potentiostatic electrolysis was conducted to prepare an alloy sample using a Ni-plate electrode at 0.20 V vs. Li+/Li for 120 min. Cross-sectional scanning electron microscopy revealed that the Ni plate was partially transformed into a Dy-Ni alloy. X-ray diffraction analysis confirmed that DyNi2 was the predominant phase and DyNi3 the minor phase in the alloy. When the electrolytic potential was kept at 0.45 V and 0.62 V for 110 min after electrolysis at 0.20 V for 130 min. the resultant phases were DyNi3 and DyNi5, respectively. The formation potential for each Dy-Ni alloy phase was determined from the experimental results. (C) 2012 The Electrochemical Society. [DOI: 10.1149/2.053212jes] All rights reserved.

引用

页码：E193 / E197

页数：5

共 15 条

[1] [Anonymous], HSC CHEM 6 1
[2] THE CRYSTAL STRUCTURES OF PUNI3 AND CENI3
CROMER, DT
OLSEN, CE
[J]. ACTA CRYSTALLOGRAPHICA, 1959, 12 (09): : 689 - 694
[3] Electrochemical formation of Sm-Ni alloy films in a molten LiCl-KCl-SmCl3 system
Iida, T
Nohira, T
Ito, Y
[J]. ELECTROCHIMICA ACTA, 2001, 46 (16) : 2537 - 2544
[4] Electrochemical Formation of Nd-Ni Alloys in Molten LiF-CaF2-NdF3
Kobayashi, S.
Kobayashi, K.
Nohira, T.
Hagiwara, R.
Oishi, T.
Konishi, H.
[J]. JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2011, 158 (12) : E142 - E146
[5] Thermodynamic properties of Dy-Ni intermetallic compounds
Konishi, H
Nishikiori, T
Nohira, T
Ito, Y
[J]. ELECTROCHIMICA ACTA, 2003, 48 (10) : 1403 - 1408
[6] Formation and phase control of Dy alloy films by electrochemical implantation and displantation
Konishi, H
Nohira, T
Ito, Y
[J]. JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2001, 148 (07) : C506 - C511
[7] KOSTENSKA I, 1974, CHEM ZVESTI, V28, P531
[8] MASSALSKI TB, 1996, BINARY ALLOY PHASE D
[9] Electrochemical formation and phase control of Pr-Ni alloys in a molten LiCl-KCl-PrCl3 system
Nohira, T
Kambara, H
Amezawa, K
Ito, Y
[J]. JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2005, 152 (04) : C183 - C189
[10] Electrochemical Formation of Nd-Ni Alloys in Molten LiF-CaF2-NdF3
Nohira, T.
Kobayashi, S.
Kobayashi, K.
Hagiwara, R.
Oishi, T.
Konishi, H.
[J]. MOLTEN SALTS AND IONIC LIQUIDS 17, 2010, 33 (07): : 205 - 212

← 1 2 →