Tunable microwave dielectric properties in SrO‐V2O5 system through compositional modulation

Li, Chunchun, Yin, Changzhi, Deng, Ming, Shu, Longlong and Khaliq, Jibran (2020) Tunable microwave dielectric properties in SrO‐V2O5 system through compositional modulation. Journal of the American Ceramic Society, 103 (4). pp. 2315-2321. ISSN 0002-7820

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Official URL: https://doi.org/10.1111/jace.16955

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.

Item Type: Article
Subjects: H700 Production and Manufacturing Engineering
J300 Ceramics and Glasses
Department: Faculties > Engineering and Environment > Mechanical and Construction Engineering
Depositing User: Elena Carlaw
Date Deposited: 30 Jan 2020 09:47
Last Modified: 26 Feb 2020 11:00
URI: http://nrl.northumbria.ac.uk/id/eprint/41995

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