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Microwave Dielectric Properties of Novel Glass‐Free Low‐Firing Li 2 CeO 3 Ceramics
Author(s) -
Tseng ChingFang,
Lin PoAn
Publication year - 2014
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/jace.12880
Subject(s) - sintering , materials science , ceramic , dielectric , microwave , mineralogy , phase (matter) , analytical chemistry (journal) , composite material , chemistry , chromatography , telecommunications , optoelectronics , organic chemistry , computer science
Novel glass–free low temperature firing microwave dielectric ceramics Li 2 CeO 3 with high Q prepared through a conventional solid‐state reaction method had been investigated. All the specimens in this paper have sintering temperature lower than 750°C. XRD studies revealed single cubic phase. The microwave dielectric properties were correlated with the sintering conditions. At 720°C/4 h, Li 2 CeO 3 ceramics possessed the excellent microwave dielectric properties of ε r = 15.8, Q × f = 143 700 (GHz), and τ f = −123 ppm/°C. Li 2 CeO 3 ceramics could be excellent candidates for glass‐free low‐temperature co‐fired ceramics substrates.