Dielectric properties and microstructure of Nb-Co codoped BaTiO 3-(Bi0.5Na0.5)TiO3 ceramics

Hsing I. Hsiang, Li Then Mei, Yi Jih Chun

Research output: Contribution to journalArticle

20 Citations (Scopus)


X-ray diffractometry, scanning electron microscopy, transmission electron microscopy, and an impedance analyzer were used to examine the Nb-Co codoping effects on the densification, crystalline phase, microstructure development, and dielectric-temperature characteristics of BaTiO3-(Bi 0.5Na0.5)TiO3 ceramics. The results indicate that the Curie temperature shifted to a higher temperature (above 140°C) by adding BNT. The dielectric constant-temperature (ε-T) curve broadened at the Curie temperature due to the small grain size (0.3-0.4 μm). A core-shell structure was developed, which is helpful to flatten the ε-T curve of BaTiO3 ceramics at high temperatures.

Original languageEnglish
Pages (from-to)2768-2771
Number of pages4
JournalJournal of the American Ceramic Society
Issue number11
Publication statusPublished - 2009 Nov 1

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Materials Chemistry

Fingerprint Dive into the research topics of 'Dielectric properties and microstructure of Nb-Co codoped BaTiO <sub>3</sub>-(Bi<sub>0.5</sub>Na<sub>0.5</sub>)TiO<sub>3</sub> ceramics'. Together they form a unique fingerprint.

  • Cite this