In this paper, the developed history and representative methods of nanostructured ferrite were introduced, and Cobalt ferrite (CoFe2O4), Barium ferrite (BaFe12O19) and their La dopping system mostly was studied by Sol-Gel. The processing conditions which affect ferrite particles size and homogeneous degree etc physical properties were reasearched, then the spinel Cobalt ferrite, M-type Barium ferrite and their La dopping system were prepared and Characterized in this investigation.
The advantages ...