期刊
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
卷 94, 期 12, 页码 4162-4164出版社
WILEY
DOI: 10.1111/j.1551-2916.2011.04912.x
关键词
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资金
- National Natural Science Foundation (NNSF) of China [51002173]
- Shanghai Rising-Star Program [09QH1402400]
- Shanghai Key Projects of Basic Research [10DJ1400203]
The (0.9 x)Bi0.5Na0.5TiO3-xBaTiO3-0.1K0.5Na0.5NbO3 [BNBKN(x), x=0.060, 0.063, 0.066, and 0.069] ceramics were fabricated by the conventional sintering technique. The P-E hysteresis loops measured under 5 kV/mm at room temperature show that the BNBKN(0.063) ceramics obtain the maximum (Ps Pr) value of 20.6 mu C/cm2 and the largest energy-storage density W of 0.424 J/cm3. In addition, calculation from the X-ray diffraction results shows that the BNBKN(0.063) ceramics are featured with the largest c/a ratio of 0.70887. The W is observed to increase with the increase of the c/a ratio in the BNBKN(x) ceramics. The c/a ratio can be regarded as a significant factor for W in the BNBKN(x) ceramics.
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