Effect of LiF addition on the structure and dielectric properties of the Bi1.5ZnNb1.5O7 based ceramics
- X. K. Cai, L. Y. Zhang, X. Yao
- Ferroelectrics, vol. 261, 2001.
Co-fired multiplayer ceramic capacitors sintered at lower temperatures than the melting point of silver electrode, are required to have excellent reliabilities. So the interface behaviors between bismuth-based dielectrics and silver metallic electrode, have been attracted wide attentions. Now it was found that the bismuth-based dielectric ceramics show deteriorated properties towards higher silver-fired temperatures. The silver's distributions in the vicinity of the interface layer were quantitatively determined by Scanning Electron Microscopy with Energy Dispersive Spectroscopy, it is duo to the metallic electrode silver to be diffused into the dielectric layer, that go bad the dielectric properties.