Nanocomposite ceramics based on La-doped BaTi2O5 and BaTiO3 with high temperature-independent permittivity and low dielectric loss |
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| Authors: | Héctor Beltrán Nahum Masó Eloisa Cordoncillo Anthony R. West |
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| Affiliation: | (1) Departamento de Química Inorgánica y Orgánica, Universidad Jaume I, Avda. Sos Baynat s/n, 12071 Castellón, Spain;(2) Department of Engineering Materials, The University of Sheffield, Mappin Street, Sheffield, S1 3JD, UK |
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| Abstract: | 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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| Keywords: | BaTi2O5 Ferroelectric Nanocomposite Permittivity Sol– gel |
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