期刊
CERAMICS INTERNATIONAL
卷 47, 期 7, 页码 9727-9735出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.ceramint.2020.12.112
关键词
Superparamagnetic nanocomposite; Dielectric properties; PVDF film; Tin ferrite
PVDF films embedded with magnetic Sn0.2Fe2.8O4 nanoparticles were prepared using a solution casting method, exhibiting superparamagnetic characteristics and good dielectric properties. The study suggests the potential applications of these films in microelectronics and magnetic sensors.
PVDF films embedded with magnetic Sn0.2Fe2.8O4 nanoparticles at selected volume percentages (<20%) were prepared by using a quick and cost-efficient method of solution casting. Using a facile technique of alternate stirring and ultrasonication of the dispersion, the less investigated electroactive gamma-PVDF phase was predominantly obtained in the pure polymer as well as loaded films. X-ray diffraction with Rietveld analysis and TEM imaging established the pure spinel phase and size of nanoparticles, respectively. Additionally, FTIR spectroscopy evidenced the gamma-phase crystallinity of all the nanocomposite films with traces of alpha-PVDF in >= 5 vol% films. The films exhibited superparamagnetic character; the saturation magnetization increased with Sn0.2Fe2.8O4 content (from approximate to 0.1 to 7 emu/g) with nearly constant coercivity (approximate to 16 Oe). The dielectric constant varied between 1 and 8 with low tangent loss (<0.11) in the 100 Hz-1 MHz frequency range. These nanocomposite films hold promise in areas like micro-electronics, interlayer applications, magnetic sensors, actuators and microwave devices.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据