Electrical properties and relaxation behavior of Bi0.5Na0.5TiO3-BaTiO3 ceramics modified with NaNbO3

Qi Xu, Michael T. Lanagan, Wei Luo, Lin Zhang, Juan Xie, Hua Hao, Minghe Cao, Zhonghua Yao, Hanxing Liu

Research output: Contribution to journalArticlepeer-review

62 Scopus citations


Electric conduction and dielectric relaxation behavior in (1-x)(Bi0.5Na0.5TiO3-BaTiO3)-xNaNbO3 ((1-x)(BNT-BT)-xNN) ceramics were investigated. All compositions showed negative temperature coefficient of resistance (NTCR) behavior. The bulk conductivity followed the Arrhenius law with Ea = 1.24-1.55 eV, which can be attributed to the electronic conduction. In the modulus (M''-f) spectra, a peak and a shoulder were observed, corresponding to the bulk and polar nano regions (PNRs) response respectively. With the increase of either temperature or NN content, the shoulder gradually depressed and even disappeared. A correlation between the PNRs evolution and the relaxation behavior was constructed.

Original languageEnglish (US)
Pages (from-to)2469-2477
Number of pages9
JournalJournal of the European Ceramic Society
Issue number10
StatePublished - Aug 1 2016

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Materials Chemistry

Fingerprint Dive into the research topics of 'Electrical properties and relaxation behavior of Bi<sub>0.5</sub>Na<sub>0.5</sub>TiO<sub>3</sub>-BaTiO<sub>3</sub> ceramics modified with NaNbO<sub>3</sub>'. Together they form a unique fingerprint.

Cite this