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Investigation of atomistic solute segregation at ceramic grain boundaries

Research Project

Project/Area Number 18K13982
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 26010:Metallic material properties-related
Research InstitutionThe University of Tokyo

Principal Investigator

Feng Bin  東京大学, 大学院工学系研究科(工学部), 特任准教授 (20811889)

Project Period (FY) 2018-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2020: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2019: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2018: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Keywords粒界溶質偏析 / 原子分解能電子顕微鏡 / イットリア安定化ジルコニア / STEM―EDS / STEM-EDS / 表面界面 / 粒界偏析 / 走査透過電子顕微鏡 / エネルギー分散型X線分光法 / 原子分解能 / セラミックス
Outline of Final Research Achievements

In this study, we aim to reveal the atomistic mechanisms of solute segregation at ceramic grain boundaries (GBs) using Yttria-stabilized zirconia (YSZ) as model materials. We have systematically fabricated different types of symmetric, asymmetric and small angle tilt YSZ GBs using bicrystal method, and the atomistic GB segregation structures were observed by atomic resolution STEM-EDS. It was found that Y segregated at all GBs, while O segregated at most of the GBs. Furthermore, atomistic GB segregation structures were confirmed. These results suggest that the GB solute segregations are mainly dominated by the long-range electric interactions between charged GB core and charged point defects, while elastic strain also affects the Y segregation in the GB.

Academic Significance and Societal Importance of the Research Achievements

粒界溶質偏析現象は実用セラミックス材料中に普遍的に存在している現象であり、材料やデバイスの巨視的な特性に大きな影響を及ぼしているが、その本質的なメカニズムは不明であった.本研究では粒界溶質偏析構造を原子レベルで直接観察することにより、電気的相互作用が粒界溶質偏析の主な駆動力であることを明らかにした.本結果は粒界溶質偏析メカニズムを解明したものであり、学術的に重要な成果であると考えられる.さらに今後、粒界溶質偏析制御に基づいた新規セラミックスの開発にもつながることが期待される.

Report

(4 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Research-status Report
  • 2018 Research-status Report
  • Research Products

    (39 results)

All 2021 2020 2019 2018 Other

All Journal Article (23 results) (of which Int'l Joint Research: 15 results,  Peer Reviewed: 23 results,  Open Access: 1 results) Presentation (15 results) (of which Int'l Joint Research: 3 results,  Invited: 3 results) Remarks (1 results)

  • [Journal Article] Fabrication and characterization of tetragonal yttria-stabilized zirconia single-crystalline thin film2021

    • Author(s)
      H. Nakade, E. Tochigi, B. Feng, Y. Nezu, H. Ohta, N. Shibata, and Y. Ikuhara
    • Journal Title

      Journal of the American Ceramic Society

      Volume: 104 Issue: 3 Pages: 1198-203

    • DOI

      10.1111/jace.17534

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Layered cobalt oxide epitaxial films exhibiting thermoelectric ZT = 0.11 at room temperature2021

    • Author(s)
      Takashima Yugo、Zhang Yu-qiao、Wei Jiake、Feng Bin、Ikuhara Yuichi、Cho Hai Jun、Ohta Hiromichi
    • Journal Title

      Journal of Materials Chemistry A

      Volume: 9 Issue: 1 Pages: 274-280

    • DOI

      10.1039/d0ta07565e

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Direct imaging of atomistic grain boundary migration2021

    • Author(s)
      Jiake Wei, Bin Feng, Ryo Ishikawa, Tatsuya Yokoi, Katsuyuki Matsunaga, Naoya Shibata, Yuichi Ikuhara
    • Journal Title

      Nature Materials

      Volume: - Issue: 7 Pages: 951-955

    • DOI

      10.1038/s41563-020-00879-z

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Anisotropic Electrical Conductivity of Oxygen-Deficient Tungsten Oxide Films with Epitaxially Stabilized 1D Atomic Defect Tunnels2021

    • Author(s)
      Kim Gowoon、Feng Bin、Ryu Sangkyun、Cho Hai Jun、Jeen Hyoungjeen、Ikuhara Yuichi、Ohta Hiromichi
    • Journal Title

      ACS Applied Materials & Interfaces

      Volume: 13 Issue: 5 Pages: 6864-6869

    • DOI

      10.1021/acsami.0c21240

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Anomalously Low Heat Conduction in Single‐Crystal Superlattice Ceramics Lower Than Randomly Oriented Polycrystals2021

    • Author(s)
      Cho Hai Jun、Wu Yuzhang、Zhang Yu‐Qiao、Feng Bin、Mikami Masashi、Shin Woosuck、Ikuhara Yuichi、Sheu Yu‐Miin、Saito Keiji、Ohta Hiromichi
    • Journal Title

      Advanced Materials Interfaces

      Volume: 8 Issue: 7 Pages: 2001932-2001932

    • DOI

      10.1002/admi.202001932

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Unusually Large Thermopower Change from +330 to -185 μV K-1 of Brownmillerite SrCoO2.52020

    • Author(s)
      Yang Qian、Lee Joonhyuk、Feng Bin、Ikuhara Yuichi、Kim Gowoon、Cho Hai Jun、Jeen Hyoungjeen、Ohta Hiromichi
    • Journal Title

      ACS Applied Electronic Materials

      Volume: 2 Issue: 7 Pages: 2250-2256

    • DOI

      10.1021/acsaelm.0c00427

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Coexistence of High Electron Conduction and Low Heat Conduction in Tungsten Oxide Epitaxial Films with 1D Atomic Defect Tunnels2020

    • Author(s)
      Kim Gowoon、Feng Bin、Sheu Yu-Miin、Cho Hai Jun、Ikuhara Yuichi、Ohta Hiromichi
    • Journal Title

      ACS Applied Electronic Materials

      Volume: 2 Issue: 8 Pages: 2507-2513

    • DOI

      10.1021/acsaelm.0c00428

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Atomic and electronic band structures of Ti-doped Al2O3 grain boundaries2020

    • Author(s)
      Chuchu Yang, Bin Feng, Wei Jiake, Eita Tochigi, Saki Ishihara, Naoya Shibata, Yuichi Ikuhara
    • Journal Title

      Acta Materialia

      Volume: 201 Pages: 488-493

    • DOI

      10.1016/j.actamat.2020.10.018

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Optimization of Two-Dimensional Channel Thickness in Nanometer-Thick SnO2-Based Top-Gated Thin-Film Transistors Using Electric Field Thermopower Modulation: Implications for Flat-Panel Displays2020

    • Author(s)
      Liang Doudou、Chen Bin-jie、Feng Bin、Ikuhara Yuichi、Cho Hai Jun、Ohta Hiromichi
    • Journal Title

      ACS Applied Nano Materials

      Volume: 3 Issue: 12 Pages: 12427-12432

    • DOI

      10.1021/acsanm.0c03069

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] High electrical conducting deep-ultraviolet-transparent oxide semiconductor La-doped SrSnO3 exceeding ~3000 S cm-12020

    • Author(s)
      Wei Mian、Sanchela Anup V.、Feng Bin、Ikuhara Yuichi、Cho Hai Jun、Ohta Hiromichi
    • Journal Title

      Applied Physics Letters

      Volume: 116 Issue: 2 Pages: 022103-022103

    • DOI

      10.1063/1.5128410

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Thickness dependence of transport behaviors in SrRuO3/SrTiO3 superlattices2020

    • Author(s)
      Wu Ping-Chun、Song Haili、Yuan Ye、Feng Bin、Ikuhara Yuichi、Huang Rong、Yu Pu、Duan Chun-Gang、Chu Ying-Hao
    • Journal Title

      Physical Review Materials

      Volume: 4 Issue: 1 Pages: 014401-014401

    • DOI

      10.1103/physrevmaterials.4.014401

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Direct Measurement of Electronic Band Structures at Oxide Grain Boundaries2020

    • Author(s)
      Wei Jiake、Ogawa Takafumi、Feng Bin、Yokoi Tatsuya、Ishikawa Ryo、Kuwabara Akihide、Matsunaga Katsuyuki、Shibata Naoya、Ikuhara Yuichi
    • Journal Title

      Nano Letters

      Volume: - Issue: 4 Pages: 2530-2536

    • DOI

      10.1021/acs.nanolett.9b05298

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] Solute Segregation Behavior in Ceramic Grain Boundaries Investigated by Atomic-Resolution Scanning Transmission Electron Microscopy2019

    • Author(s)
      Feng Bin
    • Journal Title

      Materia Japan

      Volume: 58 Issue: 10 Pages: 576-579

    • DOI

      10.2320/materia.58.576

    • NAID

      130007721908

    • ISSN
      1340-2625, 1884-5843
    • Year and Date
      2019-10-01
    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] Buffer layer-less fabrication of a high-mobility transparent oxide semiconductor, La-doped BaSnO32019

    • Author(s)
      Sanchela Anup V.、Wei Mian、Lee Joonhyuk、Kim Gowoon、Jeen Hyoungjeen、Feng Bin、Ikuhara Yuichi、Cho Hai Jun、Ohta Hiromichi
    • Journal Title

      Journal of Materials Chemistry C

      Volume: 7 Issue: 19 Pages: 5797-5802

    • DOI

      10.1039/c8tc06177g

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Investigation of electrical and thermal transport property reductions in La-doped BaSnO3 films2019

    • Author(s)
      Cho Hai Jun、Feng Bin、Onozato Takaki、Wei Mian、Sanchela Anup V.、Ikuhara Yuichi、Ohta Hiromichi
    • Journal Title

      Physical Review Materials

      Volume: 3 Issue: 9 Pages: 094601-094601

    • DOI

      10.1103/physrevmaterials.3.094601

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] Influence of Ag replacement on the formation and heating-induced phase decomposition of Zr65Al7.5Co27.5-xAgx (x=5 to 20 at%) glassy alloys2019

    • Author(s)
      Y. Guo, A. Inoue, Y. Han, F. Kong, B. Feng, S. Zhu and Y. Ikuhara
    • Journal Title

      Journal of Alloys and Compounds

      Volume: 783 Pages: 545-554

    • DOI

      10.1016/j.jallcom.2018.12.305

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] The core structure of 60° mixed basal dislocation in alumina (α-Al2O3) introduced by in situ TEM nanoindentation2019

    • Author(s)
      Bin Miao, Shun Kondo, Eita Tochigi, Jiake Wei, Bin Feng, Naoya Shibata, Yuichi Ikuhara
    • Journal Title

      Scripta Materialia

      Volume: 163 Pages: 157-162

    • DOI

      10.1016/j.scriptamat.2019.01.011

    • Related Report
      2018 Research-status Report
    • Peer Reviewed
  • [Journal Article] Atomic Scale Origin of Enhanced Ionic Conductivity at Crystal Defects2019

    • Author(s)
      Bin Feng, Ryo Ishikawa, Akihito Kumamoto, Naoya Shibata and Yuichi Ikuhara
    • Journal Title

      Nano Letters

      Volume: 19 Issue: 3 Pages: 2162-2168

    • DOI

      10.1021/acs.nanolett.9b00506

    • Related Report
      2018 Research-status Report
    • Peer Reviewed
  • [Journal Article] Double thermoelectric power factor of a 2D electron system2018

    • Author(s)
      Y. Zhang, B. Feng, H. Hayashi, C. Chang, Y. Sheu, I. Tanaka, Y. Ikuhara and H. Ohta
    • Journal Title

      Nature Communications

      Volume: 9 Issue: 1 Pages: 2224-2224

    • DOI

      10.1038/s41467-018-04660-4

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Large thickness dependence of the carrier mobility in a transparent oxide semiconductor, La-doped BaSnO32018

    • Author(s)
      A. Sanchela, M. Wei, H. Zensyo, B. Feng, J. Lee, G. Kim, H. Jeen, Y. Ikuhara and H. Ohta
    • Journal Title

      Applied Physics Letters

      Volume: 112 Issue: 23 Pages: 232102-232102

    • DOI

      10.1063/1.5033326

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] On the quantitativeness of grain boundary chemistry using STEM EDS: A ZrO2 Σ9 model grain boundary case study2018

    • Author(s)
      B. Feng, N. Lugg, A. Kumamoto, N. Shibata and Y. Ikuhara
    • Journal Title

      Ultramicroscopy

      Volume: 193 Pages: 33-38

    • DOI

      10.1016/j.ultramic.2018.05.010

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Atomic-scale measurement of flexoelectric polarization at SrTiO3 dislocations2018

    • Author(s)
      P. Gao, S. Yang, R. Ishikawa, N. Li, B. Feng, A. Kumamoto, N. Shibata, P. Yu and Y. Ikuhara
    • Journal Title

      Physical Review Letters

      Volume: 120 Issue: 26 Pages: 267601-267601

    • DOI

      10.1103/physrevlett.120.267601

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Crystallography orientation-surface energy-wetting property relationships of rare earth oxides2018

    • Author(s)
      J. Tam, B. Feng, Y. Ikuhara, H. Ohta and U. Erb
    • Journal Title

      Journal of Materials Chemistry A

      Volume: 6 Issue: 38 Pages: 18384-18388

    • DOI

      10.1039/c8ta04938f

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] Direct imaging of atomistic grain boundary migration2021

    • Author(s)
      Wei J,Feng B,Ishikawa R,Shibata N,Ikuhara Y.
    • Organizer
      日本セラミックス協会2021年年会
    • Related Report
      2020 Annual Research Report
  • [Presentation] The role of crystal defect cores on ionic conductivity in YSZ studied by atomic-resolution STEM2020

    • Author(s)
      フウ ビン,柴田 直哉,幾原 雄一
    • Organizer
      日本金属学会2020年秋期大会
    • Related Report
      2020 Annual Research Report
    • Invited
  • [Presentation] Structural and dynamical investigations of oxide grain boundaries using STEM2020

    • Author(s)
      Feng B,Wei J,Shibata N,Ikuhara Y.
    • Organizer
      Online workshop of Network Joint Research Center for Materials and Devices
    • Related Report
      2020 Annual Research Report
    • Invited
  • [Presentation] The effect of Ti doping on the atomic and electronic structures in Al2O3 Σ7 grain boundaries2020

    • Author(s)
      Yang C,Feng B,Jiake W,Tochigi E,Ishihara S,Shibata N,Ikuhara Y.
    • Organizer
      日本金属学会2020年秋期大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Atomic-scale origin of enhanced ionic conductivity at YSZ dislocation2019

    • Author(s)
      フウビン、石川亮、柴田直哉、幾原雄一
    • Organizer
      第45回固体イオニクス討論会
    • Related Report
      2019 Research-status Report
  • [Presentation] Atomistic structural origin of enhanced ionic conductivity in yttria-stabilized zirconia single dislocation2019

    • Author(s)
      Bin Feng, Ryo Ishikawa, Naoya Shibata, Yuichi Ikuhara
    • Organizer
      日本金属学会2019年秋季講演大会
    • Related Report
      2019 Research-status Report
  • [Presentation] Structural origin of enhanced ionic conductivity at yttria-stabilized zirconia dislocation investigated by scanning transmission electron microscopy2019

    • Author(s)
      B. Feng, R. Ishikawa, N. Shibata, Y. Ikuhara
    • Organizer
      The 13th Pacific Rim Conference of Ceramic Society
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Atomic-resolution STEM-EDS study of solute segregation behaviour in ceramic grain boundaries2019

    • Author(s)
      B. Feng, N. Shibata, Y. Ikuhara
    • Organizer
      2019 Chinese electron microscopy society meeting
    • Related Report
      2019 Research-status Report
  • [Presentation] Atomic-resolution STEM studies of grain boundaries and dislocations in solid oxide fuel cell electrolyte material2019

    • Author(s)
      B. Feng, N. Shibata, Y. Ikuhara
    • Organizer
      The 15th SNU-UT-TU student workshop
    • Related Report
      2019 Research-status Report
  • [Presentation] Atomic scale origin of enhanced ionic conductivity at yttria-stabilized zirconia dislocation2019

    • Author(s)
      B. Feng, R. Ishikawa, A. Kumamoto, N. Shibata, Y. Ikuhara
    • Organizer
      The 6th International Symposium on Advanced Microscopy and Theoretical Calculations
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Direct observation of grain boundary chemistry in YSZ using atomic resolution scanning transmission electron microscopy2019

    • Author(s)
      B. Feng, N. Shibata and Y. Ikuhara
    • Organizer
      JSPS Core-to-Core 5th workshop on Solid Oxide Interfaces for Faster Ion Transport
    • Related Report
      2018 Research-status Report
    • Invited
  • [Presentation] Atomistic origin of enhanced ionic conductivity in YSZ single dislocation studied by scanning transmission electron microscopy2019

    • Author(s)
      B. Feng, R. Ishikawa, N. Shibata and Y. Ikuhara
    • Organizer
      2019日本セラミックス協会年会
    • Related Report
      2018 Research-status Report
  • [Presentation] Direct observation of element distribution across ionic oxide grain boundaries using atomic-resolution STEM-EDS2018

    • Author(s)
      B.Feng, N. Lugg, A. Kumamoto, Y. Ikuhara and N. Shibata
    • Organizer
      The 9th International Microscopy Congress
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] Atomic-resolution scanning transmission electron microscopy study of grain boundary chemistry in YSZ2018

    • Author(s)
      フウビン、ラグネーサン、熊本明仁、幾原雄一、柴田直哉
    • Organizer
      第44回固体イオニクス討論会
    • Related Report
      2018 Research-status Report
  • [Presentation] 原子分解能電子顕微鏡法を用いた粒界溶質偏析機構の解明2018

    • Author(s)
      馮 斌、柴田直哉、幾原雄一
    • Organizer
      日本金属学会2018年秋期大会
    • Related Report
      2018 Research-status Report
  • [Remarks] ホームページ

    • URL

      http://interface.t.u-tokyo.ac.jp/

    • Related Report
      2020 Annual Research Report

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Published: 2018-04-23   Modified: 2022-01-27  

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