Silver cofirable Bi1.5Zn0.92Nb1.5O6.92 microwave ceramics containing CuO-based dopants

M. C. Wu, Y. C. Huang, W. F. Su*

*此作品的通信作者

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26 引文 斯高帕斯(Scopus)

摘要

Bi2O3-ZnO-Nb2O5 system has emerged as a good low sintering (∼1050 °C) microwave material because it exhibits high dielectric constant and low temperature coefficient of resonance frequency (τf). We have lowered the sintering temperature of Bi1.5Zn0.92Nb1.5O6.92 (BZN) below 900 °C by using 3 wt.% of CuO-based dopants, such as 0.21BaCO3-0.79CuO (BC) and 0.81MoO3-0.19CuO (MC). The doped BZN exhibits high microwave dielectric constant at 2.3 GHz (k ∼ 120). The interfacial behavior between BZN and silver was investigated by using X-ray diffractometer, scanning electronic microscope, and electronic probe microanalyzer. The extent of silver migration of MC and BC dopants is reduced at least by one order of magnitude as compared with V2O5 dopant when the samples was prepared at 900 °C for 4 h. Thus, CuO-based dopants can replace V2O5 to lower the sintering temperature of BZN and to be cofired with silver.

原文英語
頁(從 - 到)391-394
頁數4
期刊Materials Chemistry and Physics
100
發行號2-3
DOIs
出版狀態已出版 - 10 12 2006
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