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Silver Co‐Firable ZnTiNb 2 O 8 Microwave Dielectric Ceramics with Li 2 O–ZnO–B 2 O 3 Glass Additive
Author(s) -
Li Kecheng,
Wang Hong,
Zhou Huanfu,
Zhang Minghui,
Yao Xi
Publication year - 2010
Publication title -
international journal of applied ceramic technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.4
H-Index - 57
eISSN - 1744-7402
pISSN - 1546-542X
DOI - 10.1111/j.1744-7402.2009.02475.x
Subject(s) - materials science , sintering , microstructure , ceramic , dielectric , microwave , phase (matter) , mineralogy , analytical chemistry (journal) , composite material , optoelectronics , chemistry , physics , organic chemistry , chromatography , quantum mechanics
The effects of Li 2 O–ZnO–B 2 O 3 glass additive on the sintering behavior, phase formation, microstructure, and microwave dielectric properties of ZnTiNb 2 O 8 ceramics have been investigated. The sintering temperature of ZnTiNb 2 O 8 ceramics can be effectively reduced from 1200°C to 875°C by adding a small amount of Li 2 O–ZnO–B 2 O 3 glass, while no obvious degradation of the microwave dielectric properties was induced. Typically, the 2.0 wt% Li 2 O–ZnO–B 2 O 3 glass‐added ceramic sintered at 875°C has better microwave dielectric properties of ɛ r =31.8, Q × f =25,013 GHz, and τ f =−62 ppm/°C. In addition, the ceramics can be co‐fired well with an Ag electrode.