TY - JOUR
T1 - Nano-Fe3O4 deposited CaCu3Ti4O12/poly(vinylidene fluoride) composites with enhanced dielectric properties
AU - Zhang, Changhai
AU - Chi, Qingguo
AU - Liu, Lizhu
AU - Chen, Yang
AU - Dong, Jiufeng
AU - Ma, Tao
AU - Wang, Xuan
AU - Lei, Qingquan
N1 - Publisher Copyright:
© 2016, Springer Science+Business Media New York.
PY - 2017/2/1
Y1 - 2017/2/1
N2 - In this paper, calcium copper tianate (CCTO) ceramics were prepared by a sol–gel technology, then Fe3O4-deposited CCTO hybrid particles (CCTO@Fe3O4) and corresponding CCTO@Fe3O4/poly(vinylidene fluoride) (PVDF) composites were also prepared. Transmission electron microscope image shows that Fe3O4 nanoparticles with a certain degree of agglomeration deposited on the surface of CCTO powders. The high dielectric permittivity (115.8), low dielectric loss (0.48) and low conductivity (3.47 × 10−7 S/m) at 100 Hz were simultaneously achieved when the content of CCTO@Fe3O4 was 40 vol%. The electric modulus formalism indicated that the Fe3O4 nanoparticles could effectively enhance the interfacial polarization of the CCTO@Fe3O4/PVDF composites. Moreover, the structure of the CCTO@Fe3O4 particles effectively suppressed the formation of conducting path in PVDF matrix, resulting in a high dielectric permittivity, a low dielectric loss and a low conductivity of the composite. All the above-mentioned properties are beneficial for the use of these composites in the electronics industry, for applications such as printed circuit boards.
AB - In this paper, calcium copper tianate (CCTO) ceramics were prepared by a sol–gel technology, then Fe3O4-deposited CCTO hybrid particles (CCTO@Fe3O4) and corresponding CCTO@Fe3O4/poly(vinylidene fluoride) (PVDF) composites were also prepared. Transmission electron microscope image shows that Fe3O4 nanoparticles with a certain degree of agglomeration deposited on the surface of CCTO powders. The high dielectric permittivity (115.8), low dielectric loss (0.48) and low conductivity (3.47 × 10−7 S/m) at 100 Hz were simultaneously achieved when the content of CCTO@Fe3O4 was 40 vol%. The electric modulus formalism indicated that the Fe3O4 nanoparticles could effectively enhance the interfacial polarization of the CCTO@Fe3O4/PVDF composites. Moreover, the structure of the CCTO@Fe3O4 particles effectively suppressed the formation of conducting path in PVDF matrix, resulting in a high dielectric permittivity, a low dielectric loss and a low conductivity of the composite. All the above-mentioned properties are beneficial for the use of these composites in the electronics industry, for applications such as printed circuit boards.
UR - https://www.scopus.com/pages/publications/84991087130
U2 - 10.1007/s10854-016-5824-3
DO - 10.1007/s10854-016-5824-3
M3 - 文章
AN - SCOPUS:84991087130
SN - 0957-4522
VL - 28
SP - 2502
EP - 2510
JO - Journal of Materials Science: Materials in Electronics
JF - Journal of Materials Science: Materials in Electronics
IS - 3
ER -