Effect of TiO 2 doped Ni electrodes on the dielectric properties and microstructures of (Ba 0.96Ca 0.04)(Ti 0.85Zr 0.15)O 3 multilayer ceramic capacitors

Chen Su Chiang, Ying Chieh Lee, Fu Thang Shiao, Wen-Shi Lee, Detlev Hennings

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12 Citations (Scopus)

Abstract

The effects of TiO 2-doped Ni electrodes on the microstructures and dielectric properties of (Ba 0.96Ca 0.04)(Ti 0.85Zr 0.15)O 3 multilayer ceramic capacitors (MLCCs) have been investigated. Nickel paste with a TiO 2 dopant was used as internal electrodes in MLCCs based on (Ba 0.96Ca 0.04)(Ti 0.85Zr 0.15)O 3 (BCTZ) ceramic with copper end-termination. The microstructures and defects were analysed by microstructural techniques (SEM/HRTEM) and energy-dispersive spectroscopy (EDS). The continuity of the electrode of the MLCC was measured using a scanning electron microscope, which showed that the continuity of the electrode for the MLCC with a TiO 2-doped Ni electrode was approximately 90%. However, continuity of the electrode for a conventional MLCC was below 80%. The continuity of the TiO 2-doped Ni electrode showed significant improvement in the MLCC, which was due to no reaction between Ni and BCTZ.

Original languageEnglish
Pages (from-to)865-873
Number of pages9
JournalJournal of the European Ceramic Society
Volume32
Issue number4
DOIs
Publication statusPublished - 2012 Apr 1

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Materials Chemistry

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