Dielectric Properties of CCTO/PVDF Composite Films

Abstract:

To meet the requirement of microelectronic industry, ceramic/polymer composite films made of CaCu₃Ti₄O₁₂ (CCTO) powder as filler and PVDF copolymer as matrix were prepared by solution casting method. The dielectric properties (DP) and morphology of the films were studied by impedance analyzer and scanning electron microscope (SEM) respectively. The dielectric constant could reach 23.96 and loss 0.1082 when mass fraction of CCTO is 50% at 100 Hz. SEM results show that CCTO particles dispersed well in the PVDF matrix. At last, three composite models were used to predict the dielectric constant of the composite films and it is proved that Yamada model fits the experimental data well.

• Periodical: Advanced Materials Research (Volumes 816-817)
• Pages: 276-279
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.816-817.276
• Online since: September 2013
• Authors: Fang Fang Wang, Ya Jun Wang, Zhi Bo Ren
• Keywords: CCTO, Composite Film, Dielectric Property, PVDF

References

[1] Z. -M. Dang, J. -K. Yuan, J. -W. Zha, T. Zhou, S. -T. Li and G. -H. Hu: Prog. Mater Sci. Vol. 57 (2012), p.660.

[2] S.U. Adikary, H.L.W. Chan, C.L. Choy, B. Sundaravel and I.H. Wilson: Compos. Sci. Technol. Vol. 62 (2002), p.2161.

[3] Y. Bai, Z. -Y. Cheng, V. Bharti, H. Xu and Q. -M. Zhang: App. Phys. Let. Vol. 76 (2000), p.3804.

[4] Z. -M. Dang, Y. -F. Yu, H. -P. Xu and J. Bai: Compos. Sci. Technol. Vol. 68 (2008), p.171.

[5] L. Zhang, X. -B. Shan, P. -X. Wu and Z. -Y. Cheng: Appl. Phys. A. Vol. 107 (2012), p.597.

[6] M. Arbatti, X. Shan and Z. -Y. Cheng: Adv. Mater. Vol. 19 (2007), p.1369.

[7] T. Hattori, M. Kanaoka and H. Ohigashi: J. Appl. Phys. Vol. 79 (1996), p. (2016).

[8] D.C. Sinclair, T.B. Adams, F.D. Morrison and A.R. West: App. Phys. Let. Vol. 80 (2002), p.2153.

[9] T. Yamada, T. Ueda and T. Kitayama: J. Appl. Phys. Vol. 53 (1982), p.4328.