Magnetic and microwave absorption properties of CoxFe(3-x)O4 semi-hard materials (x = 0.75, 1.0, 1.5) synthesized have been carried out using the chemical method sol-gel. The mixture iron nitrate Fe2(NO3)3 cobalt Co(NO3)2 dissolved in ethylene glycol, then was heated while stirring at 60 °C for 1 hour to form a gel. After that dried temperature 120°C 5 hours. A fine powder obtained through grin...
