期刊
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
卷 178, 期 16, 页码 1040-1047出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.mseb.2013.06.014
关键词
Sol-gel method; Ferrite; FT-IR; XRD; VSM; Dielectric property
资金
- European Social Fund in Romania, under the responsibility of the Managing Authority for the Sectoral Operational Program for Human Resources Development [POSDRU/107/1.5/S/78342]
Nanocrystalline powders of Co substituted Zn ferrite with the chemical formula CoxZn1-xFe2O4 (x = 0, 0.2, 0.4, 0.6, 0.8, 1) were synthesized by sol-gel autocombustion method using tartaric acid as fuel agent. The samples were sintered in static air atmosphere for 7 h at 773 K, 7 h at 973 K and 10 h at 1173 K. The organic phase extinction and the spinel phase formation were monitored by means of Fourier transform infrared spectroscopy. The X-ray diffraction patterns analysis confirmed the spinet single phase accomplishment. Crystallite size, average grains size, lattice parameter and cation distribution were estimated. Magnetic behavior of the as-obtained samples by means of M-H hysteresis measurements was studied at room temperature. Permeability and dielectric permittivity at room temperature versus frequency was the subject of a comparative study for the CoxZn1-xFe2O4 series. In agreement with the proposed cation distribution the sample with Co0.8Zn0.2Fe2O4 formula exhibits the optimal magnetic and dielectric properties. (c) 2013 Elsevier B.V. All rights reserved.
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