人工晶体学报2011，Vol.40Issue(4)：1059-1064,6.
改进Pechini方法制备锰锌铁氧体纳米颗粒及其电磁特性
Electromagnetic Characteristics of Mn-Zn Ferrite Nanoparticles Prepared by Modified Pechini Method
摘要
Abstract
Mn-Zn ferrite nanoparticles were obtained by calcining foam gel particles at 500 ℃ which were prepared by modified Pechini method. The structural and magnetic characteristics of the as prepared samples were analyzed by XRD, TEM, ED and VSM. Compared to Mn-Zn ferrite nanoparticles fabricated by Pechini method, the results showed that Mn-Zn ferrite nanoparticles prepared by modified Pechini method exhibited good dispersibility, uniform distribution and good crystallinity, and the particlediameter is in the range of 20-40 nm; its saturation magnetization is 40. 6 emu/g at the maximum magnetic field of 10 kOe at room temperature. The electromagnetic characteristics of Mn-Zn ferrites prepared by different methods were measured by vector network analyzer in the microwave frequency range of 2-18 GHz. The Mn-Zn ferrites prepared by modified Pechini method exhibited higher dielectric constant and permeability than that of Mn-Zn ferrites prepared by conventional Pechini method.关键词
铁氧体/磁性能/Pechini方法/电磁特性Key words
ferrite/magnetic property/Pechini method/electromagnetic characteristics分类
化学化工引用本文复制引用
刘献明,高文亮..改进Pechini方法制备锰锌铁氧体纳米颗粒及其电磁特性[J].人工晶体学报,2011,40(4):1059-1064,6.基金项目
河南科技攻关项目 (092102310113) （092102310113）
河南省自然科学项目(2008B430019) （2008B430019）
