Flat dielectric properties of capacitor (1 - x)Pb(Mg1/3Nb2/3)O3 - xPbTiO3 by controlled concentration gradient

Jong Gab Baek, Kenjiro Gomi, Tetsuhiko Isobe, Mamoru Senna

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Physical and chemical bases of ferroelectrics with the controlled multilayers are studied to design a capacitor with the high and flat dielectric constant. Each component, (1 - x)Pb(Mg1/3Nb2/3)O3-xPbTiO3 (x = 0, 0.1 and 0.2), is compounded in parallel at the stage of a green compact and sintered at 1200°C for 2 h. The ceramics exhibits the flat dielectric curve at temperatures between - 10 and 100°C with the dielectric constant, 9 × 103. The flat dielectric curve is attributed to the existence of the reaction layer formed during sintering between the parallel segments with different x.

Original languageEnglish
Pages (from-to)46-52
Number of pages7
JournalMaterials Science and Engineering B
Issue number1
Publication statusPublished - 1997 Sep 5



  • (1 - x)Pb(MgNb)O-xPbTiO
  • Ferroelectrics
  • Flat dielectric curve
  • Multilayer
  • Reaction layer

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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