Simultaneous monitoring of oxygen potential and interface structure in liquid Pb-Li alloy

• Project/Area Number: 25820437
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Nuclear fusion studies
• Research Institution: Tokyo Institute of Technology (2015); Tokai University (2013-2014)
• Principal Investigator: KONDO MASATOSHI 東京工業大学, 原子炉工学研究所, 助教 (70435519)
• Project Period (FY): 2013-04-01 – 2016-03-31
• Project Status: Completed (Fiscal Year 2015)
• Budget Amount: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000); Fiscal Year 2015: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000); Fiscal Year 2014: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000); Fiscal Year 2013: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
• Keywords: 電気化学インピーダンス / 固体電解質 / 液体金属 / 核融合炉 / ブランケット / 腐食 / 酸化被膜 / 酸素ポテンシャル / 鉛リチウム / コーティング / 液体ブランケット / トリチウム透過防止 / 耐食膜 / リチウム

Outline of Final Research Achievements

(1) The Pb-Li alloys with various Li concentration were fabricated with the small metal grains of Li and Pb. Small metal grains of Li and Pb should be well mixed before the heating and the melting to prevent the formation of Li rich alloy by the segregation of Li. The chemical behaviors of non-metal impurities in the alloys are investigated by means of temperature programmed desorption method.(2) The electrical characteristics of Y2O3 and ZrO2 in a static Pb were successfully obtained by an electrochemical impedance spectroscopy. The results indicated that the in-situ analysis of the formation and the growth of the oxide layers in a liquid metal can be done by the EIS method. (3) The solid electrolyte sensor and the specimen of pre-oxidized zirconium (Zr) were simultaneously immersed to liquid Pb at 698-898K. The responses of the sensor and the EIS were successfully obtained, and these signals indicated that the Zr oxide layer is chemically stable in liquid Pb.

Research Products

• [Journal Article] <i>In-Situ</i> Evaluation of Functional Layer by Electrochemical Impedance Spectroscopy (2016)
  • Author(s): 鈴木成実、佐々木亮祐、松村義人、近藤正聡
  • Journal Title: Journal of the Japan Institute of Metals and Materials Volume: 80 Issue: 4 Pages: 284-288
  • DOI: 10.2320/jinstmet.JBW201503
  • NAID: 130005138658
  • ISSN: 0021-4876, 1880-6880, 2433-7501
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Journal Article] 液体燃料増殖材及び液体ダイバータ冷却材の共存性 (2016)
  • Author(s): 近藤正聡、長坂琢也
  • Journal Title: Journal of Plasma and Fusion Research Volume: 92 Pages: 130-135
• [Journal Article] Experimental Study on Chemical Behaviors of Non-Metal Impurities in Pb, Pb-Bi and Pb-Li by Temperature Programmed Desorption Mass Spectrometer Analysis (2016)
  • Author(s): Masatoshi KONDO, Yuu. NAKAJIMA, Teruya TANAKA, Takashi NOZAWA, Takehiko YOKOMINE
  • Journal Title: Plasma and Fusion Research Volume: 11 Issue: 0 Pages: 2405076-2405076
  • DOI: 10.1585/pfr.11.2405076
  • NAID: 130005243436
  • ISSN: 1880-6821
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Journal Article] Corrosion of steels in molten gallium (Ga), tin (Sn) and tin lithium ally (Sn-20Li) (2015)
  • Author(s): Masatoshi KONDO, Masatomi Ishii, Takeo Muroga
  • Journal Title: Fusion Engineering and Design Volume: 98-99 Pages: 2003-2008
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Electrochemical impedance spectroscopy on in-situ analysis of oxide layer formation in liquid metal (2014)
  • Author(s): M. Kondo, N. Suzuki, Y. Nakajima, T. Tanaka, T. Muroga
  • Journal Title: Fusion Engineering and Design Volume: accepted Issue: 7-8 Pages: 1201-1208
  • DOI: 10.1016/j.fusengdes.2014.04.048
  • Peer Reviewed
• [Presentation] Design study on double layer type interface structure for heat exchanger of Fusion DEMO blanket (2015)
  • Author(s): Masatoshi Kondo, Teruya Tanaka, Yoshimitsu Hishinuma, Narumi Suzuki, Yosuke Kawamata, H. Chikaraishi, Takeo Muroga, Akio Sagara
  • Organizer: 25th international toki conference (ITC-25) Creating the Future
  • Place of Presentation: Ceratopia Toki
  • Year and Date: 2015-11-03
  • Int'l Joint Research
• [Presentation] Desorption of non-metal impurities from Pb and Pb-Li alloy (2015)
  • Author(s): Masatoshi KONDO, Yuu Nakajima, Teruya Tanaka, Takashi Nozawa, Takehiko Yokomine
  • Organizer: 25th international toki conference (ITC-25) Creating the Future
  • Place of Presentation: Ceratopia Toki
  • Year and Date: 2015-11-03
  • Int'l Joint Research
• [Presentation] 電気化学インピーダンス法を応用した機能性被覆のin-situ評価 (2015)
  • Author(s): 鈴木成実, 佐々木亮佑, 松村義人, 近藤正聡
  • Organizer: 日本金属学会2015年秋季講演大会
  • Place of Presentation: 九州大学 伊都キャンパス
  • Year and Date: 2015-09-16
• [Presentation] 電気化学インピーダンス法を用いた機能性被覆の定常診断法 (2015)
  • Author(s): 鈴木成実、近藤正聡、田中照也
  • Organizer: 日本原子力学会2015春の年会学生ポスターセッション
  • Place of Presentation: 茨城大学日立キャンパス （茨城県日立市中成沢町4-12-1）
  • Year and Date: 2015-03-20 – 2015-03-22
• [Presentation] 高温酸化による機能性被覆形成挙動の解明と電気特性評価 (2015)
  • Author(s): 鈴木成実、近藤正聡、田中照也
  • Organizer: 日本原子力学会関東甲越支部第8回学生研究発表会
  • Place of Presentation: 東京都市大学世田谷キャンパス(東京都 世田谷区 玉堤 1-28-1)
  • Year and Date: 2015-03-06
• [Presentation] Formation of functional layer structure by pre-oxidation process and in-situ evaluation of layer structure by EIS analysis (2014)
  • Author(s): Narumi SUZUKI, Masatoshi KONDO, Teruya TANAKA
  • Organizer: Plasma 2014
  • Place of Presentation: 朱鷺メッセ (新潟市中央区万代島6番1号)
  • Year and Date: 2014-11-18 – 2014-11-21
• [Presentation] Accelerated corrosion of reduced activation ferritic martensitic steel in non-isothermal Pb-17Li system (2014)
  • Author(s): Masatoshi KONDO, Masaomi IＳＨＩＩ, Takeo MUROGA
  • Organizer: Plasma 2014
  • Place of Presentation: 朱鷺メッセ (新潟市中央区万代島6番1号)
  • Year and Date: 2014-11-18 – 2014-11-21
• [Presentation] Application of electrochemical impedance spectroscopy to in-situ corrosion monitoring of ceramic coatings in liquid breeder blanket (2014)
  • Author(s): Masatoshi KONDO, Narumi SUZUKI, Yuu NAKAJIMA, Yuya Akiyama, Teruya TANAKA, Yoshimitsu HＩＳＨＩＮＵＭＡ, Takeo MUROGA, Akio SAGARA
  • Organizer: Numat 2014
  • Place of Presentation: Hilton Clearwater (400 Mandalay Avenue, Clearwater, Florida, 33767, USA)
  • Year and Date: 2014-10-27 – 2014-10-30
• [Presentation] Corrosion of RAFM steel JLF-1 in flowing Pb-Li alloy with and without temperature gradient (2014)
  • Author(s): Masatoshi KONDO, Masaomi ISHI, Takeo MUROGA
  • Organizer: Numat 2014
  • Place of Presentation: Hilton Clearwater (400 Mandalay Avenue, Clearwater, Florida, 33767, USA)
  • Year and Date: 2014-10-27 – 2014-10-30
• [Presentation] 液体金属場における材料酸化挙動の電気化学インピーダンス解析 (2014)
  • Author(s): 鈴木成実、近藤正聡、室賀健夫、田中照也
  • Organizer: 日本原子力学会春の年会
  • Place of Presentation: 東京都市大学
• [Presentation] 液体金属中における材料接液界面構造のオンライン評価 (2014)
  • Author(s): 鈴木成実、近藤正聡、室賀健夫、田中照也
  • Organizer: 2014日本原子力学会春の年会(学生ポスターセッション) *一般投票賞受賞*
  • Place of Presentation: 東京都市大学
• [Presentation] In-situ impedance measurement of corrosion interface in liquid metals (2013)
  • Author(s): Masatoshi KONDO, Narumi SUZUKI, Yuu NAKAJIMA, Teruya TANAKA, Takeo MUROGA,
  • Organizer: 11th ISFNT
  • Place of Presentation: Barcelona Spain
• [Presentation] Electrochemical impedance measurement of oxide film with liquid metal electrode of lead lithium alloy (2013)
  • Author(s): Masatoshi KONDO, Yuuya AKIYAMA, Teruya TANAKA, Narumi SUZUKI, Yuu NAKAJIMA
  • Organizer: 9th Asia Plasma and Fusion Association Conference
  • Place of Presentation: Gyeongju City, Korea
• [Presentation] In-situ corrosion analysis of materials in liquid metal by electrochemical impedance spectroscopy (2013)
  • Author(s): Narumi SUZUKI, Masatoshi KONDO, Teruya TANAKA, Takeo MUROGA
  • Organizer: COE-INES-4
  • Place of Presentation: 東京工業大学
• [Presentation] 液体金属環境下で自己形成・修復する機能性被覆に関する研究 (2013)
  • Author(s): 近藤正聡、鈴木成実、田中照也、室賀健夫
  • Organizer: プラズマ核融合学会第30回年会
  • Place of Presentation: 東京工業大学
• [Presentation] 鉛リチウム液体金属電極を用いた酸化被膜のインピーダンス特性 (2013)
  • Author(s): 小木和弥、秋山優也、鈴木成実、近藤正聡
  • Organizer: プラズマ核融合学会第30回年会
  • Place of Presentation: 東京工業大学
• [Presentation] 電気化学インピーダンス法による液体金属鉛リチウム場の腐食挙動解析 (2013)
  • Author(s): 近藤正聡、鈴木成実、田中照也、室賀健夫
  • Organizer: 2013日本原子力学会秋の年会
  • Place of Presentation: 八戸工業大学
• [Remarks] 東京工業大学STARサーチ 近藤正聡
  • URL: http://search.star.titech.ac.jp/titech-ss/pursuer.act?event=outside&key_rid=B000245395&lang=jp
• [Remarks] Research gate (Masatoshi KONDO)
  • URL: https://www.researchgate.net/profile/Masatoshi_Kondo
• [Remarks] Researcher ID (KONDO, Masatoshi)
  • URL: http://www.researcherid.com/rid/E-1566-2015
• [Remarks] ORCID (Masatoshi KONDO)
  • URL: http://orcid.org/0000-0002-9493-1994
• [Remarks] 大学院生が日本原子力学会関東甲越支部学生研究発表会で受賞しました
  • URL: http://www.u-tokai.ac.jp/academics/undergraduate/engineering/news/detail/post.html
• [Remarks] 大学院生が日本原子力研究開発機構の特別研究生に選ばれました
  • URL: http://www.u-tokai.ac.jp/TKDCMS/News/Detail.aspx?code=engineering&id=7074