Ultra-Low Loss Microwave Dielectric Ceramic Li2Mg2TiO5 and Low-Temperature Firing Via B2O3 Addition |
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| Authors: | Chunchun Li Huaicheng Xiang Changzhi Yin Ying Tang Yuncui Li Liang Fang |
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| Affiliation: | 1.College of Information Science and Engineering,Guilin University of Technology,Guilin,China;2.Guangxi Universities Key Laboratory of Non-Ferrous Metal Oxide Electronic Functional Materials and Devices,Guilin University of Technology,Guilin,China |
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| Abstract: | Li2Mg2TiO5, a rock-salt structured ceramic fabricated by a solid-state sintering technique, was characterized at the microwave frequency band. As a result, a microwave dielectric permittivity (εr) of 13.4, a quality factor of 95,000 GHz (at 11.3 GHz), and a temperature coefficient of resonance frequency (τf) of ? 32.5 ppm/°C have been obtained at 1320°C. Li2Mg2TiO5 ceramics have low permittivity, a broad processing temperature region, and a low loss, making them potential applications in millimeter-wave devices. Furthermore, B2O3 addition efficiently lowered the sintering temperature of Li2Mg2TiO5 to 900°C, which opens up their possible applications in low-temperature co-fired ceramics (LTCC) technology. |
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