金属学报  1992, Vol. 28 Issue (3): 65-68

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Ni在NaCl-KCl-PrCl_3熔体中的电化学合金化

杨绮琴;刘冠昆;童叶翔;梁广超

中山大学;中山大学;中山大学;中山大学

ELECTROCHEMICAL ALLOYING OF Ni IN MOLTEN NaCl-KCl-PrCl_3

YANG Qiqin;LIU Guankun;TONG Yexiang;LIANG Guangchao Zhongshan University; Guangzhou

杨绮琴;刘冠昆;童叶翔;梁广超. Ni在NaCl-KCl-PrCl_3熔体中的电化学合金化[J]. 金属学报, 1992, 28(3): 65-68.
, , , . ELECTROCHEMICAL ALLOYING OF Ni IN MOLTEN NaCl-KCl-PrCl_3[J]. Acta Metall Sin, 1992, 28(3): 65-68.

摘要 参考文献 相关文章 Metrics 全文: PDF(379 KB)   摘要: 用循环伏安法、恒电位电解断电后的电极电位—时间曲线、电位阶跃法以及X射线衍射法,研究了Pr(Ⅲ)在NaCl—KCl—PrCl_3熔体中在Ni电极上还原的电极过程,首先生成PrNi_5,随后依次生成含Pr量较多的Pr—Ni金属间化合物,然后才析出金属Pr,测得PrNi_5在1023,1073和1123K的标准生成自由能分别为-123.6,-118.9和-114.4kJmol~(-1);Pr在PrNi_5相中的扩散系数为3×10~(-11)cm~2 s~(-1)(1073K) 关键词 ： 电化学合金化,  Pr-Ni合金,  熔盐电化学     Abstract：The cyclic vltammetry, electrode potential--time curve after potentiostatic elec-trolysis, potential step method and X--ray diffraction were used to study the electrode process ofPr(III) reduced on Ni electrode in molten NaCl--KCl--PrCl_3 and to determine the diffusioncoefficient of Pr into its alloy phase. The Pr-Ni alloys are formed before the deposition of me-tallic Pr. The PrNi_5 is formed on electrode first and then the intermetallic compounds containedmore Pr are formed in sequence. The standard free energy of formation for PrNi_5 has also beendetermined. Key words： electrochemical alloying    Pr-Ni alloy    molten salt electrochemistry 收稿日期: 1992-03-18      基金资助:国家自然科学基金 服务 把本文推荐给朋友 加入引用管理器 E-mail Alert RSS 作者相关文章 杨绮琴 刘冠昆 童叶翔 梁广超 44.8K 链接本文: https://www.ams.org.cn/CN/      或      https://www.ams.org.cn/CN/Y1992/V28/I3/65 1 Metsumoto T, Matsushita A. J Less-Common Met, 1987; 132(1) : 115 2 Strzeszewski J, Nazareth A, Hadjipanayis G C. J Appl Phys, 1988; 63: 3978 3 中村永治,井户胜寿.日本公开特许,62 222 092,1987 4 Flengas S N, Ingraham T R. J Electrochem Soc, 1959; 106: 714 5 Hamer W J, Malmberg M S, Rubin B. J Electrochem Soc, 1956; 103: 8 6 Kabanov B N, Astakhov I I, Kiseleva I G. Electrochim Acta, 1979; 24: 167 7 Bard A J, Faulkner L R. Electrochemical Methods. New York: John Wiley & Sons, 1980 8 Mamantov G, Manning D L, Dale J M. J Electroanal Chem, 1965; 9: 253 9 章复中,谷力军,稀土,1982;(1) :56 10 杨绮琴,刘冠昆,蔡伟文,刘泽锦.稀有金属,待发表 [1] 杨绮琴;刘冠昆;刘泽锦. 电化学合金化Y-Cu体系的生成自由能[J]. 金属学报, 1989, 25(4): 110-114. Viewed Full text Abstract Cited   Shared      Discussed