Nanocomposite ceramics based on La-doped BaTi2O5 and BaTiO3 with high temperature-independent permittivity and low dielectric loss

被引:0
作者
Héctor Beltrán
Nahum Masó
Eloisa Cordoncillo
Anthony R. West
机构
[1] Universidad Jaume I,Departamento de Química Inorgánica y Orgánica
[2] The University of Sheffield,Department of Engineering Materials
来源
Journal of Electroceramics | 2007年 / 18卷
关键词
BaTi; O; Ferroelectric; Nanocomposite; Permittivity; Sol–gel;
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中图分类号
学科分类号
摘要
Nanocomposite ceramics containing a mixture of two ferroelectric phases, La-doped BaTi2O5 and BaTiO3, with carefully-controlled phase amounts and ceramic microstructure have temperature-independent permittivity and low dielectric loss over very wide temperature ranges: ɛ = 95 ± 10 from 25 to 600 °C; tan δ = 0.02(2) from 25 to 400 °C, measured at 100 kHz. Further optimisation of properties should be possible.
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页码:277 / 282
页数:5
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