Microwave dielectric properties and its compatibility with silver electrode of Li2MgTi3O8 ceramics
Microwave dielectric properties and its compatibility with silver electrode of Li2MgTi3O8 ceramics
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DOI：
10.1016/j.jallcom.2011.02.134
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发表时间：
2011-05
影响因子：
6.2
通讯作者：
Xiuli Chen;Huanfu Zhou;L. Fang;Xiaobin Liu;Yiliang Wang
中科院分区：
文献类型：
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作者：
Xiuli Chen;Huanfu Zhou;L. Fang;Xiaobin Liu;Yiliang Wang
研究了B2O5 （BCB）对li2mgti3o8陶瓷烧结温度和微波介电性能的影响。纯li2mgti3o8陶瓷具有较高的烧结温度（~ 1000°C）和良好的微波介电性能，Q×f为40000 ghz， τf为27.2，τf为2.6ppm/°C。结果表明，少量BCB的加入可有效降低li2mgti3o8陶瓷的烧结温度，从1025℃降至900℃，且对其微波介电性能无明显影响。在900°C烧结2h时，添加0.5wt% BCB的li2mgti3o8陶瓷具有良好的微波介电性能，其介电性能为Q×f= 36200 ghz (f=7.31GHz), ε r=26, τf= - 2ppm/°C。与银电极的相容性表明该材料可用于低温共烧陶瓷（LTCC）器件。
The effects of BaCu(B2O5) (BCB) additions on the sintering temperature and microwave dielectric properties of Li2MgTi3O8ceramic have been investigated. The pure Li2MgTi3O8ceramic shows a relative high sintering temperature (∼1000°C) and good microwave dielectric properties as Q×f of 40,000GHz, ɛrof 27.2, τfof 2.6ppm/°C. It was found that the addition of a small amount of BCB can effectively lower the sintering temperature of Li2MgTi3O8ceramics from 1025 to 900°C and induce no obvious degradation of the microwave dielectric properties. Typically, the 0.5wt% BCB added Li2MgTi3O8ceramic sintered at 900°C for 2h exhibited good microwave dielectric properties of Q×f=36,200GHz (f=7.31GHz), ɛr=26 and τf=−2ppm/°C. Compatibility with Ag electrode indicates this material can be applied to low temperature-cofired ceramics (LTCC) devices.