Microwave dielectric properties of (ABi)1/2MoO4 (A = Li, Na, K, Rb, Ag) type ceramics with ultra-low firing temperatures

Di Zhou, Clive A. Randall, Li Xia Pang, Hong Wang, Jing Guo, Gao Qun Zhang, Ying Wu, Ke Ting Guo, Li Shui, Xi Yao

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Abstract

A series of (ABi)1/2MoO4 (A = Li, Na, K, Rb, Ag) compositions were studied in regard to the sintering behavior, phase composition, microwave dielectric properties and chemical compatibility with silver and/or aluminum for electrodes. All the (ABi)1/2MoO 4 (A = Li, Na, K, Rb, Ag) ceramics could be sintered below 700 °C with relative densities above 93%. Whereas the (KBi)1/2MoO 4 ceramic can be sintered to a high density at around 630 °C/2 hrs with a relative permittivity ∼37, a Qf value of 4000 GHz and a temperature coefficient of resonant frequency (TCF) ∼ +117 ppm/°C. Furthermore, from the XRD analysis of co-fired ceramics, the (KBi) 1/2MoO4 ceramic reacts with silver but not with aluminum at its densification temperature. The (ABi)1/2MoO4 (A = Li, Na, K, Rb, Ag) type ceramics can all be considered into the new field of ultra-low temperature co-firing dielectrics for multilayer applications.

Original languageEnglish (US)
Pages (from-to)688-692
Number of pages5
JournalMaterials Chemistry and Physics
Volume129
Issue number3
DOIs
StatePublished - Oct 3 2011

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics

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