Document Type

Article

Publication Date

2-4-2013

Journal or Book Title

Journal of Applied Physics

Volume

113

First Page

054101

DOI

10.1063/1.4790135

Abstract

The energy storage density of electrical capacitors utilizing antiferroelectric compositions Pb0.99Nb0.02[(Zr0.57Sn0.43)1−yTiy]0.98O3 as dielectrics is measured at a series of temperatures in a series of dielectric compositions with and without self-confinement. Under the applied electric field of 70 kV/cm, a maximum energy density of 1.3 J/cm3 is achieved. The mechanical self-confinement was introduced by partially electroding the central portion of thedielectric ceramic disk. A phase-field model was developed and it confirms the presence of compressive stresses ∼30 MPa in the electroded portion of the dielectric disk and the contribution to the increased energy density from the mechanical confinement.

Comments

The following article appeared in Journal of Applied Physics 113 (2013): 054101 and may be found at http://dx.doi.org/10.1063/1.4790135.

Copyright Owner

American Institute of Physics

Language

en

File Format

application/pdf

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