Dielectric Properties of CCTO/PVDF Composite Films

Autor: Fang Fang Wang, Zhi Bo Ren, Ya Jun Wang
Rok vydání: 2013
Předmět:
Zdroj: Advanced Materials Research. :276-279
ISSN: 1662-8985
DOI: 10.4028/www.scientific.net/amr.816-817.276
Popis: 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.
Databáze: OpenAIRE