Effect of CaO and ZrO2 co-substitution on dielectric properties of BaTi2O5 prepared by arc melting

Yue Xinyan, Tu Rong, Goto Takashi, Ru Hongqiang

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4 Citations (Scopus)


CaO and ZrO2 co-substituted polycrystalline BaTi 2O5, (Ba1-xCax)(Ti 0.995Zr0.005)2O5, (BCT 2Z), was prepared by arc melting and the dielectric properties were investigated by AC impedance spectroscopy. b-direction orientation was obtained at any composition. The lattice parameters of a-, b- and c-axes first increased until x = 0.003 and then slightly decreased with increasing CaO content up to x = 0.020. The maximum permittivity of polycrystalline BaTi2O 5 showed the highest value of 6230 at x = 0.020. The Tc of polycrystalline BaTi2O5 slightly decreased from 750 to 716 K when CaO content was increased up to 0.020.

Original languageEnglish
Pages (from-to)435-438
Number of pages4
JournalJournal of the Ceramic Society of Japan
Issue number1364
Publication statusPublished - 2009 Apr


  • Arc melting
  • CaO
  • Dielectric properties
  • Orientation
  • Polycrystal

ASJC Scopus subject areas

  • Ceramics and Composites
  • Chemistry(all)
  • Condensed Matter Physics
  • Materials Chemistry

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