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Erschienen in: Journal of Materials Science: Materials in Electronics 4/2016

30.12.2015

Dielectric properties of 0.95(Mg0.98Zn0.02)TiO3–0.05CaTiO3 ceramic sintered by calcium borosilicate glass ceramic doping

verfasst von: Wentao Xie, Hongqing Zhou, Qinxian Jiang, Hongxiang Xu, Luchao Ren, Xianfu Luo, Lei Qian

Erschienen in: Journal of Materials Science: Materials in Electronics | Ausgabe 4/2016

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Abstract

The effect of calcium borosilicate (CBS) glass ceramic on the phase formation, the microstructures and the microwave dielectric properties of 0.95(Mg0.98Zn0.02)TiO3–0.05CaTiO3 (MZCT) ceramics prepared via the conventional solid-state reaction route were investigated. It has been found that (Mg0.98Zn0.02)TiO3 and CaTiO3 are the main phases and a second phase (Mg0.98Zn0.02)Ti2O5 appeared in MZCT ceramics doped with CBS glass. As the content of CBS glass increased, the second phase (Mg0.98Zn0.02)Ti2O5 further enhanced. Appropriate CBS glass addition could effectively facilitate sintering of the ceramics, and well-densified microwave ceramics with uniform grains could be obtained under 1240 °C. An extremely high Q × f of 59,200 GHz together with an ε r of 21.42 and a τ f value of −2.1 ppm/°C could be found for 0.95(Mg0.98Zn0.02)TiO3–0.05CaTiO3 specimen with 4 wt% CBS glass addition sintered at 1240 °C for 2 h. This study shows that appropriate addition of CBS glass could effectively decrease the sintering temperature of MZCT ceramics without deteriorating the ceramic performance.

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Metadaten
Titel
Dielectric properties of 0.95(Mg0.98Zn0.02)TiO3–0.05CaTiO3 ceramic sintered by calcium borosilicate glass ceramic doping
verfasst von
Wentao Xie
Hongqing Zhou
Qinxian Jiang
Hongxiang Xu
Luchao Ren
Xianfu Luo
Lei Qian
Publikationsdatum
30.12.2015
Verlag
Springer US
Erschienen in
Journal of Materials Science: Materials in Electronics / Ausgabe 4/2016
Print ISSN: 0957-4522
Elektronische ISSN: 1573-482X
DOI
https://doi.org/10.1007/s10854-015-4231-5

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