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Article
Mechanical self-confinement to enhance energy storage density of antiferroelectric capacitors
Journal of Applied Physics
  • S. E. Young, Iowa State University
  • J. Y. Zhang, Iowa State University
  • W. Hong, Iowa State University
  • Xiaoli Tan, Iowa State University
Document Type
Article
Publication Date
2-4-2013
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
Date Available
2013-11-19
File Format
application/pdf
Citation Information
S. E. Young, J. Y. Zhang, W. Hong and Xiaoli Tan. "Mechanical self-confinement to enhance energy storage density of antiferroelectric capacitors" Journal of Applied Physics Vol. 113 (2013) p. 054101
Available at: http://works.bepress.com/xiaoli_tan/4/