Enhanced Ferroelectric Properties of Intragranular‐Porous Pb(Zr <sub>0.95</sub> Ti <sub>0.05</sub> )O <sub>3</sub> Ceramic Fabricated with Carbon Nanotubes
Heng Chang Nie(Chinese Academy of Sciences), Ning Feng(Chinese Academy of Sciences), Xue Feng Chen(Chinese Academy of Sciences), Gen Wang(Chinese Academy of Sciences), Xian Lin Dong(Chinese Academy of Sciences), Yan Gu(Institute of High Energy Physics), Hong He(Institute of High Energy Physics), Yu Sheng Liu(Institute of High Energy Physics)
Cited by 25
Abstract
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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