期刊
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
卷 93, 期 3, 页码 642-645出版社
WILEY-BLACKWELL
DOI: 10.1111/j.1551-2916.2009.03479.x
关键词
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资金
- Nature Science Association Foundation (NSAF) of China [10676035]
- Innovation Project Foundation of Chinese Academy of Sciences [KGCXZ-YW-340]
The intragranular-porous ferroelectric ceramic was fabricated for the first time with carbon nanotubes as pore formers and the effects of intragranular pores on the ferroelectric and dielectric properties were investigated. It was found that compared with dense ceramic the introduction of a small amount of intragranular pores led to an enhanced remnant polarization, an improved bulk resistivity, higher dielectric breakdown strength, a lower dielectric constant, and thus an enhanced energy storage density by 20%. Plus, a shift of the Curie temperature of ceramics was found in intragranular-porous ferroelectric ceramic and possible reasons for these effects were interpreted.
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