Tunable microwave dielectric properties in SrO-V2O5 system through compositional modulation |
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| Authors: | Chunchun Li Changzhi Yin Ming Deng Longlong Shu Jibran Khaliq |
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| Affiliation: | 1. College of Information Science and Engineering, Guilin University of Technology, Guilin, China;2. State Key Laboratory Breeding Base of Nonferrous metals and specific Materials Processing, Guangxi Universities Key Laboratory of Non-ferrous Metal Oxide Electronic Functional Materials and Devices, College of Material Science and Engineering, Guilin University of Technology, Guilin, China;3. School of Materials Science and Engineering, Nanchang University, Nanchang, China;4. Department of Mechanical and Construction Engineering, Faculty of Engineering and Environment, Northumbria University, Newcastle, UK |
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| Abstract: | Adjustment on resonance frequency stability against the sintering temperature of Sr3V2O8 was realized by adjusting the Sr:V mole ratio. Effects of Sr:V ratio on sintering behavior and dielectric properties of Sr3V2O8 were studied. The sintering temperature was sucessfully reduced to 950°C from 1150°C. With increasing vanadium content, both relative permittivity and quality factor decreased, while the temperature coefficient of resonance frequency shifted from positive to negative values. Especially, a near-zero τf of −1.1 ppm/°C along with a low permittivity (εr) of 9.8 and a quality factor Q × f of 24 120 GHz was successfully achieved in Sr3-yV2O8-y ceramic (y = 0.6, sintered at 950°C). The wide compositional and processing adjustment window, favorable dielectric performances, and good chemical compatibility with silver render Sr3-yV2O8-y ceramics potential candidates in multilayer electronic devices. |
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| Keywords: | ceramics composite ceramics dielectric properties microwave resonance |
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