PREPARATION AND MAGNETIC-PROPERTIES OF BAFE12-2XCOX-YSNXNIYO19 PARTICLES

BaFe12-2xCox-ySnxNiyO10 hexagonal-plated-shaped barium ferrite powders mere prepared by chemical precipitation and subsequent heat treatment to investigate the effects of Hi ion on the magnetic properties of th e barium ferrite powders. Experimental results indicates that if the y value in the chemical formula is varied and the x value is maintained constant, i.e. the partial replacement of Co ion by Hi ion, the parti cle size and sigma(g) or the powders mere reduced; furthermore, the H- c value of the powders mould be maximized at a certain y value. If the x value is varied and maintained y=0.5x, the large the addition of (C ox/2Nix/2Snx) ions causes the more of a decrease in the sigma value, H -c value, and curie temperature.