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

Research output: Contribution to journalComment/debate

DOI

Authors

External departments

  • Guilin University of Technology
  • Nanchang University

Details

Original languageEnglish
Pages (from-to)2315-2321
JournalJournal of the American Ceramic Society
Volume103
Issue number4
Early online date26 Dec 2019
DOIs
Publication statusPublished - 1 Apr 2020
Publication type

Research output: Contribution to journalComment/debate

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.