Low-temperature sintering and compatibility with silver electrode of Ba4MgTi11O27 microwave dielectric ceramic |
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| Authors: | Xiuli Chen Liang Fang Changda Li Hong Wang |
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| Affiliation: | a Key Laboratory of Nonferrous Materials and New Processing Technology, Ministry of Education, Guilin University of Technology, Jiangan Road 12#, Guilin 541004, China
b Electronic Materials Research Laboratory, Key Laboratory of the Ministry of Education, Xi’an Jiaotong University, Xi’an 710049, China |
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| Abstract: | Ba4MgTi11O27 microwave dielectric ceramic was investigated using X-ray diffraction, scanning electron microscopy and dielectric measurement. The pure Ba4MgTi11O27 ceramic shows a high sintering temperature (∼1275 °C) and good microwave dielectric properties as Q × f of 19,630 GHz, ?r of 36.1, τf of 14.6 ppm/°C. It was found that the addition of BaCu(B2O5) (BCB) can effectively lower the sintering temperature from 1275 to 925 °C, and does not induce much degradation of the microwave dielectric properties. The BCB-doped Ba4MgTi11O27 ceramics can be compatible with Ag electrode, which makes it a promising ceramic for LTCC technology application. |
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| Keywords: | A. Electronic materials C. X-ray diffraction D. Dielectric properties D. Microstructure |
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