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Research Article | Open Access

Dielectric composites with a high and temperature-independent dielectric constant

Xiaobing SHAN, Lin ZHANG, Xiqiao YANG, Z.-Y. CHENG*( )
Materials Research and Education Center, Auburn University, Auburn, AL 36849, USA
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Abstract

Dielectric composites made using P(VDF-CTFE) 88/12 mol% as polymer matrix and both micro-sized and nano-sized CaCu3Ti4O12 (CCTO) particles as filler are developed. These composites exhibit high dielectric constant with a small dielectric loss. More importantly, it is found that the dielectric constant of these composites is almost independent of temperature from 25 ℃ to 125 ℃. Comparing the composites made using micro-sized CCTO particles, the composites made using nano-sized CCTO particles exhibit a smaller dielectric loss. The dielectric properties of these composites indicate that the nano-sized CCTO particles have a smaller dielectric constant than the micro-sized CCTO particles.

Keywords

dielectric constantcompositeCCTOP(VDF-CTFE)temperature dependence

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Journal of Advanced Ceramics
Volume 1 Issue 4,
December 2012
Pages 310-316
DOI: 10.1007/s40145-012-0031-z
Cite this article:
SHAN X, ZHANG L, YANG X, et al. Dielectric composites with a high and temperature-independent dielectric constant. Journal of Advanced Ceramics, 2012, 1(4): 310-316. https://doi.org/10.1007/s40145-012-0031-z

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Received: 05 October 2012
Revised: 30 November 2012
Accepted: 01 December 2012
Published: 09 January 2013
© The author(s) 2012
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