Properties of vanadium-doped SrBi4Ti4O15 ferroelectric ceramics |
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Authors: | Jun Zhu Xiang-yu Mao |
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Institution: | a College of Physics Science and Technology, Yangzhou University, Yangzhou 225002, China b The National Laboratory of Solid State Microstructures, Nanjing University, Nanjing 210008, China |
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Abstract: | Using the standard solid-state reaction method, several vanadium-doped ferroelectric ceramics of type SrBi4−x/3Ti4−xVxO15 (SBTV−x) were synthesized. The vanadium doping content, x, rangs from 0.00 to 0.06. The crystal structure of SrBi4Ti4O15 is not affected by V-doping. The electric breakdown voltage of the samples increases with V content. Meanwhile, V-doping results in a notable enlargement of remnant polarization (2Pr). The 2Pr of STBV−0.03 reaches a very large value, which is over 50 μC/cm2 and is nearly twice greater than that at zero doping. The Curie temperatures of V-doped samples decrease slightly in comparison with that of SrBi4Ti4O15. V-doping can improve the electric properties of SrBi4Ti4O15 without sacrificing its thermal stableness. |
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Keywords: | 77 84 L 7780 B 77 80 D |
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