Ni-coated CaCu3Ti4O12/low density polyethylene composite material with ultra-high dielectric permittivity

9Citations
Citations of this article
11Readers
Mendeley users who have this article in their library.

This article is free to access.

Abstract

We report a novel low-density polyethylene (LDPE) composite filled with nickel-coated CaCu3Ti4O12 ceramic (denoted as CCTO@Ni), prepared by a melt mixing technique, and its prominent dielectric characteristics. The effects of magnetic field treatment on the dielectric properties of CCTO@Ni/LDPE composite films with a low filler concentration of 10 vol.% were investigated. Our results show that the dielectric permittivity, loss tangent, and conductivity of the LDPE composite films initially improved and then decreased with increasing treatment time under the applied magnetic field. Magnetic field treatment for 60 min led to an ultra-high dielectric permittivity value of 1.57 × 104, four orders of magnitude higher than that of the pure LDPE material. Our results indicate that the magnetic treatment may have induced a percolation effect and enhanced the interfacial polarization of the CCTO@Ni/LDPE composite, resulting in the observed changes in its dielectric properties.

Cite

CITATION STYLE

APA

Gao, L., Wang, X., Chen, Y., Chi, Q. G., & Lei, Q. Q. (2015). Ni-coated CaCu3Ti4O12/low density polyethylene composite material with ultra-high dielectric permittivity. AIP Advances, 5(8). https://doi.org/10.1063/1.4930075

Register to see more suggestions

Mendeley helps you to discover research relevant for your work.

Already have an account?

Save time finding and organizing research with Mendeley

Sign up for free