Surface modification of Dy2O3-Nb2O5 dope mix for dielectric materials in aqueous dispersion

Wen Hsi Lee, T. Y. Tseng, Detlev Hennings

研究成果: Article同行評審

摘要

The electrokinetic mismatch between the basic dielectric compound (Ba,Ca)(Ti,Zr)O3 (BCTZ) and Dy2O3-Nb2O5 dope mix in aqueous suspensions has been improved by a pre-firing and milling treatment of the dope mix. Pre-fired dope mix showed a much higher zeta potential which resulted in a drastic improvement of the particle dispersion in aqueous slurries. By use of surface-modified dope mix the homogeneity of the micro structure of multilayer ceramic capacitors is improved and the break-down voltage of thin (7 μm) dielectric layers increased. The results observed indicate the critical influence of the micro structural homogeneity on the breakdown voltage of MLCCs.

原文English
頁(從 - 到)977-982
頁數6
期刊Journal of the European Ceramic Society
20
發行號7
DOIs
出版狀態Published - 2000 6月

All Science Journal Classification (ASJC) codes

  • 陶瓷和複合材料
  • 材料化學

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