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Erschienen in: Journal of Materials Science: Materials in Electronics 1/2013

01.01.2013

Phase stability, low temperature cofiring and microwave dielectric properties of BaTi5O11 ceramics with BaCu(B2O5) addition

verfasst von: Huanfu Zhou, Xiaobin Liu, Hong Wang, Liang Fang, Xiuli Chen

Erschienen in: Journal of Materials Science: Materials in Electronics | Ausgabe 1/2013

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Abstract

The effects of BaCu(B2O5) (BCB) additions on the sintering temperature, microstructure and microwave dielectric properties of BaTi5O11 modified with 1.0 wt% CuO (BTC) ceramic have been investigated using X-ray diffraction, scanning electron microscopy and dielectric measurement. The BTC ceramic shows a high sintering temperature (~1,100 °C) and good microwave dielectric properties as Q × f = 44,530 GHz, ε r = 40.5, τ f  = 39 ppm/°C. The addition of BCB to BTC effectively reduced the sintering temperature from 1,100 to 925 °C. The reduced sintering temperature was attributed to the BCB liquid phase. The BTC ceramic doped with 4 wt% BCB has a good microwave dielectric properties with Q × f = 25,502 GHz, ε r = 37.4, τ f  = 33.1 ppm/°C. The chemical compatibility of silver electrodes and low-fired samples has also been investigated.

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Metadaten
Titel
Phase stability, low temperature cofiring and microwave dielectric properties of BaTi5O11 ceramics with BaCu(B2O5) addition
verfasst von
Huanfu Zhou
Xiaobin Liu
Hong Wang
Liang Fang
Xiuli Chen
Publikationsdatum
01.01.2013
Verlag
Springer US
Erschienen in
Journal of Materials Science: Materials in Electronics / Ausgabe 1/2013
Print ISSN: 0957-4522
Elektronische ISSN: 1573-482X
DOI
https://doi.org/10.1007/s10854-012-0743-4

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