Effects of ZrO₂ additions on the dielectric properties of CaCu₃Ti₄O₁₂

Citeable URL: https://ir.library.oregonstate.edu/concern/articles/jh343x88p

Descriptions

Attribute Name	Values
Creator	Patterson, Eric A. Kwon, Seunghwa Huang, Chien-Chih Cann, David P.
Abstract	The dielectric spectra of CaCu₃Ti₄O₁₂ is characterized by a large permittivity (εᵣ>10 000) with only a weak dependence on temperature over the temperature range 200–400 K. In this work, doping with 0.1–1.0 wt % ZrO₂ has been shown to dramatically reduce the dielectric loss. At 0.5 wt % ZrO₂, tan δ remains below 0.05 over the frequency range 50 Hz–30 kHz and is just 0.065 at 100 kHz. While there is some diminution of the permittivity (εᵣ≈5000 at 10 kHz) Zr-doped ceramics, exhibited very little bias dependence (∆C/C₀<1.0% up to 40 V). In summary, results suggest that ZrO₂ doping is an effective method for maintaining a high permittivity and low loss over a broad range in temperature, bias, and frequency. Keywords: zirconium compounds, copper compounds, doping, dielectric losses, dielectric materials, calcium compounds, permittivity
Resource Type	Article
DOI	https://doi.org/10.1063/1.2126142
Date Available	2010-02-22T15:02:49+00:00
Date Issued	2005-10-28
Citation	Patterson, E. A., Kwon, S., Huang, C., & Cann, D. P. (2005). Effects of ZrO₂ additions on the dielectric properties of CaCu₃Ti₄O₁₂ [Electronic version]. Applied Physics Letters, 87(18).
Journal Title	Applied Physics Letters
Journal Volume	87
Urheberrechts-Erklärung	Copyright Not Evaluated
Publisher	American Institute of Physics
Language	English [eng]
Replaces	http://hdl.handle.net/1957/14519