STRUCTURAL AND MAGNETIC PROPERTIES OF Mg-Co FERRITENANOPARTICLES

Digest Journal of Nanomaterials and Biostructures

A. M. Mohammad¹ 

关键词: Nanoparticles;    Spinal ferrites;    Sol-gel auto-combustion;    X-ray diffraction;    FRSEM;    VSM;   

DOI  :  

学科分类：生物技术

来源: Institute of Materials Physics

【 摘 要 】

A series of magnesium-substituted cobalt ferrite nanoparticles Co1-xMgxFe2O4 (0.0 ≤ x ≤1.0, step 0.2), have been synthesized using sol–gel auto-combustion method. The powderscalcined at 600, 700, and 800 ˚C for 3h. Various characterization methods were used toinvestigate the prepared powders such as X-ray diffraction (XRD), field emission scanningelectron microscopy (FE-SEM), and vibrating sample magnetometer (VSM). The XRDpatterns of the synthesized samples confirm the formation of single phase spinal structurednanoparticles. FE-SEM image results show some agglomerated of spherical andpolyhedral shape morphology. Moreover, the average crystallite size was found to beranging from (55.146-68.434nm). Saturation magnetization (Ms), remanent magnetization(Mr), and coercivity (Hc) decreases with increase in Mg substitution as indicated by VSMat room temperature. Both the structural and magnetic properties of Mg-Co ferritenanoparticles depend upon Mg2+ ions substitution.

【 授权许可】

Unknown