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Low-firing Li2ZnTi3O8 microwave dielectric ceramics with BaCu(B2O5) additive

2011; Springer Science+Business Media; Volume: 34; Issue: 6 Linguagem: Inglês

10.1007/s12034-011-0237-7

0973-7669

Guohua Chen, Jin Liu, Xuqiong Li, Huarui Xu, Minhong Jiang, Changrong Zhou,

Advanced ceramic materials synthesis

Phase purity, microstructure, sinterability and microwave dielectric properties of BaCu(B2O5)-added Li2ZnTi3O8 ceramics and their cofireability with Ag electrode were investigated. A small amount of BaCu (B2O5) can effectively reduce the sintering temperature from 1075°C to 925°C, and it does not induce much degradation of the microwave dielectric properties. Microwave dielectric properties of ε r = 23·1, Q × f = 22,732 GHz and τ f = − 17·6 ppm/°C were obtained for Li2ZnTi3O8 ceramic with 1·5 wt% BaCu(B2O5) sintered at 925°C for 4 h. The Li2ZnTi3O8 +BCB ceramics can be compatible with Ag electrode, which makes it a promising microwave dielectric material for low-temperature co-fired ceramic technology application.