KF添加Ba-Ti-O系強誘電体の比較--BaTiO3単結晶とBaTi2O5セラミックス  [in Japanese] A comparison of KF-doped Ba-Ti-O system ferroelectrics: BaTiO3 single crystals and BaTi2O5 ceramics  [in Japanese]

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Abstract

Temperature dependence of the dielectric constant on Ba_(1-x)K_xTiO_(3-x)F_x single crystals (0<x<0.13) was measured in a temperature range between 100 K and 450 K, and the relation of the phase transition temperatures vs. KF content was examined. The ferroelectric Curie-temperature T_C decreases monotonously from 390 K to 280 K with increasing x from 0 to 0.12, while the maximum value of the dielectric constant ε_(max) at T_C exhibits a peak around x=0.1. Furthermore, temperature dependence of the dielectric constant on Ba_(1-x)K_xTiO_(3-x)F_x ceramics (0<=x <=0.05) was measured in a temperature range between 100 K and 850 K. The ferroelectric Curie-temperature T_C steeply decreases by about 250 K by 1% KF-doping. The KF-doping effect on the ferroelectric properties was compared between BaTiO_3 and BaTi_2O_5

Journal

  • Memoirs of the Faculty of Education, Shimane University Educational science, literature and social science, natural science

    Memoirs of the Faculty of Education, Shimane University Educational science, literature and social science, natural science 43, 111-115, 2009-12

    Shimane University

Codes

  • NII Article ID (NAID)
    110007522598
  • NII NACSIS-CAT ID (NCID)
    AA12171265
  • Text Lang
    JPN
  • Article Type
    departmental bulletin paper
  • Journal Type
    大学紀要
  • ISSN
    18808581
  • NDL Article ID
    10560618
  • NDL Source Classification
    ZV1(一般学術誌--一般学術誌・大学紀要) // ZM2(科学技術--科学技術一般--大学・研究所・学会紀要)
  • NDL Call No.
    Z22-331
  • Data Source
    NDL  NII-ELS  IR 
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