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Microwave Dielectric Characterization of a Li 3 NbO 4 Ceramic and Its Chemical Compatibility with Silver
Author(s) -
Zhou Di,
Wang Hong,
Pang LiXia,
Yao Xi,
Wu XinGuang
Publication year - 2008
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1551-2916.2008.02764.x
Subject(s) - ceramic , materials science , permittivity , natural bond orbital , dielectric , analytical chemistry (journal) , mineralogy , composite material , chemistry , molecule , optoelectronics , chromatography , organic chemistry
A Li 3 NbO 4 ceramic has been prepared using the solid‐state reaction method and well sintered at around 930°C. The best microwave dielectric properties were obtained in the ceramic sintered at 930°C for 2 h with permittivity 15.8, Qf value about 55 009 GHz, and temperature coefficient about −49 ppm/°C. From X‐ray diffraction, backscattered electron imaging, and energy‐dispersive X‐ray spectroscopy results of the ceramic co‐fired with 20 wt% silver additive, the Li 3 NbO 4 ceramic was found not to react with Ag at 900°C. The Li 3 NbO 4 ceramic is a promising dielectric material for low‐temperature co‐fired ceramic technology.