The role of Co in the BaTiO3–Na0.5Bi0.5TiO3 based X9R ceramics

@inproceedings{Sun2015TheRO,
  title={The role of Co in the BaTiO3–Na0.5Bi0.5TiO3 based X9R ceramics},
  author={Yue Sun and Hanxing Liu and Hua Hao and Lin Zhang and Shujun Zhang},
  year={2015}
}
Abstract Ceramics in BaTiO 3 –Na 0.5 Bi 0.5 TiO 3 –Nb 2 O 5 –Co 3 O 4 (BT–NBT–Nb–Co) system were fabricated to satisfy the EIA-X9R specification (−55~200 °C, Δ C / C ≤±15%) of multilayer ceramic capacitors. The role of Co in this system was investigated. The core–shell structure was found to exist in the system, as confirmed by transmission electron microscopy (TEM), accounting for the high dielectric temperature stability. The Co can regulate the reaction between Nb and BT–NBT to adjust the… CONTINUE READING