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- W2249246986 abstract "Ba0.9Sr0.1TiO3 ferroelectric ceramics with dopants of La 2 O 3 (0, 0.1, 0.1, 0.2 mol%) and Nb 2 O 5 (0, 0, 0.1, 0.1 mol%) were prepared in solid state process. The double donor substitutions can weaken lattice size effect by the two different size substitutions. XRD method was used to analyze the crystal structure of the samples, and SEM was used to observe the topography, grain’s size and ceramics density. The results of dielectric-frequency relation indicate that when the contents of La 2 O 3 and Nb 2 O 5 are both 0.10 mol%, the permittivity can reach to 150 000, and the dielectric loss keeps only 0.118. When the total donor content is lower than 0.40 mol%, compensation effect is dominated by electrons. The giant permittivity is attributed to electrons inside grain and insulated grain boundary. When the dopant content is higher than 0.40 mol%, the compensation effect is dominated by the host cation vacancies. The permittivity decreases rapidly with the increase of the donor concentration." @default.
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- W2249246986 date "2012-02-01" @default.
- W2249246986 modified "2023-09-23" @default.
- W2249246986 title "Effects of La<sub>2</sub>O<sub>3</sub> and Nb<sub>2</sub>O<sub>5</sub> Doping on the Dielectric Properties of Ba<sub>0.9</sub>Sr<sub>0.1</sub>TiO<sub>3</sub> Ceramics" @default.
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- W2249246986 doi "https://doi.org/10.4028/www.scientific.net/amr.463-464.453" @default.
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