Electrochemical formation of Tb alloys in LiCl-KCl eutectic melts

Hirokazu Konishi, Kenta Mizuma, Hideki Ono, Eiichi Takeuchi, Toshiyuki Nohira, Tetsuo Oishi

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

The electrochemical formation of Tb-Ni alloys was investigated in a molten LiCl-KCl-TbCl3(0.50 mol% added) at 723 K. Open-circuit potentiometry was conducted using a Ni electrode after electrodepositing Tb metal at 0.20 V (vs. Li+ / Li) for 300 s. There were four potential plateaus at (a) 0.66 V, (b) 0.80 V, (c) 0.95 V and (d) 1.56 V, respectively. Alloy samples were prepared by potentiostatic electrolysis at 0.60 V and 0.70 V at 723 K. The alloy phase was identified as only TbNi2. Anodic dissolution of Tb from the formed TbNi2 was conducted at 0.90 V, 1.20 V and 1.60 V, respectively. In the sample obtained at 0.90 V for 3 h, the existence of TbNi3 was identified by the XRD. Phase of the sample obtained at 1.20 V for 3 h was TbNi5. The sample obtained at 1.60 V for 3 h was Ni.

Original languageEnglish
Title of host publication8th Pacific Rim International Congress on Advanced Materials and Processing 2013, PRICM 8
PublisherJohn Wiley and Sons Inc.
Pages277-285
Number of pages9
ISBN (Print)9781632660008
DOIs
StatePublished - 2013
Event8th Pacific Rim International Congress on Advanced Materials and Processing 2013, PRICM 8 - Waikoloa, HI, United States
Duration: 2013/08/042013/08/09

Publication series

Name8th Pacific Rim International Congress on Advanced Materials and Processing 2013, PRICM 8
Volume1

Conference

Conference8th Pacific Rim International Congress on Advanced Materials and Processing 2013, PRICM 8
Country/TerritoryUnited States
CityWaikoloa, HI
Period2013/08/042013/08/09

Keywords

  • Electrolysis
  • Molten salt
  • Rare earth
  • Separation

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials

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