Dielectric Properties of BSTO/Mg2SiO4/MgO Ceramic Composites

Abstract

Abstract: BSTO/Mg₂SiO₄/MgO ceramic composites were fabricated by conventional ceramic processing. The microstructures and dielectric properties of the samples were measured and investigated
systemically. The effects of the doping of Mg₂SiO₄/MgO on the microstructures and dielectric properties of BSTO/Mg₂SiO₄/MgO ceramic composites were investigated. The results show
that compared with the other BSTO ceramic composites, BSTO/Mg₂SiO₄/MgO ceramic composites not only can be sintered at a lower temperature but also keep a higher tunability while the dielectric
constant decreases. The typical composition of BSTO/39wt/% Mg₂SiO₄/17wt% MgO has a dielectric constant of ～80.21, a dielectric loss of ～0.003 and a tunability of ～12% under applying 2kV/mm dc bias field.

Key words: Ba_1-xSr_xTiO₃ （BSTO）, ceramic composites, dielectric properties, tunability

CLC Number:

TM22
TB33

CHEN Ying,DONG Xian-Lin,GAO Min,LIANG Rui-Hong,CAO Fei. Dielectric Properties of BSTO/Mg₂SiO₄/MgO Ceramic Composites[J]. Journal of Inorganic Materials.

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Dielectric Properties of BSTO/Mg₂SiO₄/MgO Ceramic Composites

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