Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7888297 | Ceramics International | 2018 | 18 Pages |
Abstract
Low-firing (Zn0.9Mg0.1)1âxCoxTiO3 (x = 0.02-0.10) (ZMCxT) microwave dielectric ceramics with high temperature stability were synthesized via conventional solid-state reaction. The influences of Co2O3 substitution on the phase composition, microstructure and microwave dielectric properties of ZMCxT ceramics were discussed. Rietveld refinement results show the coexistence of ZnTiO3 and ZnB2O4 phases at x = 0.02-0.10. (Zn0.9Mg0.1)1âxCoxTiO3 ceramic with x = 0.06 (ZMC0.06T) obtains the best combination microwave dielectric properties of: εr = 21.58, Q à f = 53,948 GHz, Ïf = â 54.38 ppm/°C. For expanding its application in LTCC field, 3 wt% ZnO-B2O3-SiO2 (ZBS) and 9 wt% TiO2 was added into ZMC0.06T ceramic, great microwave dielectric properties were achieved at 900 °C for 4 h: εr = 26.03, Q à f = 34,830 GHz, Ïf = â 4 ppm/°C, making the composite ceramic a promising candidate for LTCC industry.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Hongyu Yang, Enzhu Li, Yingfeng Yang, Yan Shi, Hongcai He, Shuren Zhang,