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Anomalous ultrasonic absorption in solid state ionic conductor

Research Project

Project/Area Number 08650067
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Applied physics, general
Research InstitutionEhime University

Principal Investigator

INOUE Naoki  Ehime University Faculty of Science Professor, 理学部, 教授 (50110771)

Co-Investigator(Kenkyū-buntansha) IIDA Shinji  Ehime University Faculty of Science Associate Prof., 理学部, 助教授 (60183737)
Project Period (FY) 1996 – 1997
Project Status Completed (Fiscal Year 1997)
Budget Amount *help
¥2,200,000 (Direct Cost: ¥2,200,000)
Fiscal Year 1997: ¥600,000 (Direct Cost: ¥600,000)
Fiscal Year 1996: ¥1,600,000 (Direct Cost: ¥1,600,000)
KeywordsSolid Electrolyte / Ultrasonic Absorption / Ionic Conduction / Phase Transition
Research Abstract

Solid solution Na_yK1_<-y>Na1.4Zr1.3OMgo0.7 (PO4) 3 was prepared between KNa1.4Zr1.3Mg0.7 (PO4) 3 and Na2.4Zr1.3Mg0.7 (PO4) 3 with NASICON type structure. Cationic subsitution improved the conductivity which reached a maximum for y=0.7. For each compositions, the activation energy was obtained from th Arrhenius plots, and showed fairly constant against y. Hexagonal parameters a and c were obtained by X-ray diffraction. The a parameter was fairly constant and the b nonlinear behavior against y. These results are correlated with structural features and conductivity data. The solid solution of PbBr2-CuBr has a high electric conductivity above 150゚C.The frequency and temperature dependences of complex dielectric constants have been investigated in the concentration of x=0.01-0.3. They exhibited a strong dielectric relaxation caused by the ionic conducrion. Ultrasonic absorption has been measured in the temperature range from 30 to 200゚C.They showed a distinct peak at about 170゚C depending on the concentration. Using the Debye relaxation, the excess absorption was explained as transition of copper ions between two sites.

Report

(3 results)
  • 1997 Annual Research Report   Final Research Report Summary
  • 1996 Annual Research Report
  • Research Products

    (13 results)

All Other

All Publications (13 results)

  • [Publications] Naoki Inoue et al: "Ultrasonic relaxation in superionic conductor Na_<1+2x>Zr_<2-x>Mg_x(PO_4)_3" Jpn.J.Appl.Phys.35巻. 2889-2891 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Naoki Inoue et al: "Strucrute and conducrivity of Na_yK_<1-y>Na_<1.4>Zr_<1.3>Mg_<0.7>(PO_4)_3 solid solution" Solid State Ionics. 86-88巻. 69-72 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Naoki Inoue et al: "Anomalous temperarure dependence of conducrivity and X-ray diffraction in Cu_xPb_<1-x>Br_<2-x> Solid Solution" Ionics. 2巻. 289-292 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Naoki Inoue et al: "Phase transition and copperion conduetor in PbBr_2-CuBr" Ionics. 3巻. 139-142 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Naoki Inoue and Yoshihiro Ogawa: "Ultrasonic relaxation in superionic conductor Na1+2_xZr2_<-x>Mg_x (PO4) 3." Jpn.J.Appl.Phys.35. 2889-2891 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Naoki Inoue et al: "Structure and conductivity of Na_yK1_<-y>Na1.4Zr1.3MG0.7 (PO4) 3 solid solution." Solid State Ionics. 86-88. 69-72 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Naoki Inoue and Koji Idebuchi: "Anomalous temperature dependence of conductivity and X-ray diffraction in Cu_xPb1_<-x>Br2_<-x> solid solution." Ionics. 2. 289-292 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Naoki Inoue and Toshifumi Nishiura: "Phase transition and copper ion conductor in PbBr2-CuBr." Ionics. 3. 139-142 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Naoki Inoue et al: "Ultrasonic relaxation in superionic conductor Nalt_2x Zr_<-x> Mg_x (PO_4)_3" Jpn.J.Appl.Phys.35巻. 2889-2891 (1996)

    • Related Report
      1997 Annual Research Report
  • [Publications] Naoki Inoue et al: "Structure and conductivity of NayK_<1-y>Na_<1.4>Zr1.3Mg_<0.7>(PO_4)_3sdid Sdution" Solid State Ionics. 86-88巻. 69-72 (1996)

    • Related Report
      1997 Annual Research Report
  • [Publications] Naoki Inoue et al: "Anomalous temperature dependence of conductivity and X-ray diffraction in Cu_xPb1-xBr_<2-x> Solid Solution" Ionics. 2巻. 289-292 (1996)

    • Related Report
      1997 Annual Research Report
  • [Publications] Naoki Inoue et al: "Phasetransition and copper ion conductor in PbBr_2-CuBr" Ionics. 3巻. 139-142 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] Naoki Inoue 他2名: "Structure and conductivity of NayK_<1-y> Na_<1.4>Zr_<1.3>Mg_<0.7>(PO_4)_3 solid solution" Solid State Ionics. 86-88. 69-72 (1996)

    • Related Report
      1996 Annual Research Report

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Published: 1996-04-01   Modified: 2016-04-21  

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