Ba3Co2Fe24O41/polyimide composites with magnetic and dielectric properties

Cheng，Yatong1; Niu，Yujuan2; Xiang，Feng1; Chang，Panpan1; Wang，Hong1,2

2019

10.1007/s10832-019-00182-7

JOURNAL OF ELECTROCERAMICS   影响因子和分区

1385-3449

1573-8663

BaCoFeO(CoZ)/polyimide(PI) composites were synthesized via in-situ polymerization process, using the micron-sized CoZ particles prepared by the solid-state reaction. X-ray diffractometer (XRD) pattern shows the existence and purity of the aimed phase. Scanning electron microscope (SEM) images show that the CoZ particles are uniformly dispersed in the composites. The testing results of dielectric properties of composites reveal that the dielectric constants of the composites increase with the CoZ content increasing. The frequency-dependent dielectric loss shows that the dielectric loss of samples has the same trend, and that a peak can be observed at about 10 MHz. The saturation magnetization (Ms) of composites depends on the ferrite content, and the Ms. value can reach 8.9 emu/g when the ferrite content is 40 wt% in CoZ/PI composites. Additionally, the coercivity (Hc) of composites show almost no change as the ferrite content increasing, about 100 Oe. The results indicate that the obtained magnetic dielectric composites are new candidates for antenna applications.

Composites Dielectric properties Magnetic properties Sintering

SCI ; EI

英语

通讯

National Key Research and Development Program of China Stem Cell and Translational Research[] ; National Natural Science Foundation of China[2017YFB0406303]

Materials Science

Materials Science, Ceramics

WOS:000501498500014

Springer

20192707147242

Antennas ; Composite materials ; Dielectric devices ; Dielectric losses ; Dielectric properties ; Ferrite ; Magnetic properties ; Saturation magnetization ; Scanning electron microscopy ; Sintering ; Solid state reactions

Metallography:531.2 ; Magnetism: Basic Concepts and Phenomena:701.2 ; Dielectric Materials:708.1 ; Chemical Reactions:802.2 ; Physical Properties of Gases, Liquids and Solids:931.2 ; Materials Science:951

MATERIALS SCIENCE

2-s2.0-85068349224

Scopus

1.State Key Laboratory for Mechanical Behavior of Materials & School of MicroelectronicsXi’an Jiaotong University,Xi’an,710049,China
2.Department of Materials Science and EngineeringSouthern University of Science and Technology,Shenzhen,518055,China

Cheng，Yatong,Niu，Yujuan,Xiang，Feng,et al. Ba3Co2Fe24O41/polyimide composites with magnetic and dielectric properties[J]. JOURNAL OF ELECTROCERAMICS,2019,43(1-4):117-122.

Cheng，Yatong,Niu，Yujuan,Xiang，Feng,Chang，Panpan,&Wang，Hong.(2019).Ba3Co2Fe24O41/polyimide composites with magnetic and dielectric properties.JOURNAL OF ELECTROCERAMICS,43(1-4),117-122.

Cheng，Yatong,et al."Ba3Co2Fe24O41/polyimide composites with magnetic and dielectric properties".JOURNAL OF ELECTROCERAMICS 43.1-4(2019):117-122.