Effect of chromium addition on the structural, morphological and magnetic properties of nano-crystalline cobalt ferrite system

2012 ◽  
Vol 38 (8) ◽  
pp. 6671-6676 ◽  
Author(s):  
Yüksel Köseoğlu ◽  
Mousa Ibrahim Oleiwi Oleiwi ◽  
Resul Yilgin ◽  
Abdullah N. Koçbay
Keyword(s):  
Magnetic Properties ◽  
Cobalt Ferrite ◽  
Chromium Addition ◽  
Nano Crystalline ◽  
Ferrite System

scholarly journals Temperature Dependence of Initial Permeability of NixCo1-xFe2O4 Ferrite System

2015 ◽  
Vol 16 (4) ◽  
pp. 695-699
Author(s):  
V.S. Bushkova ◽  
A.V. Kopayev ◽  
N.I. Bushkov ◽  
B.V. Karpyk ◽  
O.M. Matkivskyi
Keyword(s):  
Particle Size ◽  
Magnetic Properties ◽  
Surface Layer ◽  
Crystallite Size ◽  
Cobalt Ferrite ◽  
Sol Gel ◽  
Initial Permeability ◽  
Nickel Cobalt ◽  
Auto Combustion ◽  
Ferrite System

The aim of this work was to create and study of ferrite nickel-cobalt powders, using sol-gel technology with participation of auto-combustion. Dependence of the initial permeability from the degree of substitution of cobalt cations on nickel cations is obtained. It is revealed that the crystallite size has a significant influence on the magnetic properties of the samples. With decreasing of crystallite size of nickel-cobalt ferrite Curie temperature decreases. It is shown that the smaller the particle size, the greater the thickness of the surface layer with significant violations of magnetic structure.

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