Tailoring microwave dielectric properties of BaTi4O9 ceramics by addition of Sm2O3
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概要
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BaTi4O9 ceramics with Sm2O3 addition were prepared in a form of xSm2O3+BaTi4O9 (x = 1, 3, 5, 7 mol %) and the microstructures and microwave dielectric properties of the ceramic samples were characterized. SEM shows when x greater than 3 mol %, BaSm2Ti4O12 crystallized in a fiber shape along the crystalline boundary. With the increase of Sm2O3 addition, the dielectric constant increases from 36.65 to 39.8, while the quality factor decreases from 28000 to 19000, τf from +20.2 to +10.1 ppm/°C. Results of curve fitting of FIRS show extrinsic dielectric loss could account for the increase of dielectric loss, which should be attributed to the substantial increase of Ti3+ and Ti2+.
- 公益社団法人 日本セラミックス協会の論文
著者
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Song Ying
Department of Applied Chemistry, Harbin Institute of Technology
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Wang Fuping
Department of Applied Chemistry, Harbin Institute of Technology
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Song Ying
Department Of Applied Chemistry Harbin Institute Of Technology
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HUANG Xianli
Department of Applied Chemistry, Nanjing University of Aeronautics and Astronautics
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ZHANG E
Department of Mathematics, Harbin Vocational College of Science and Technology
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WANG Fuping
Department of Applied Chemistry, Nanjing University of Aeronautics and Astronautics
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Huang Xianli
Department of Applied Chemistry, Harbin Institute of Technology, Harbin 150001, China
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