Physical and Magnetic Properties of Calcium-Substituted Li-Zn Ferrite

Abstract

The effect of Ca-substitution on the physical and magnetic properties of Li 0.3-0.5x Zn 0.4 Ca x Fe 2.3-0.5x O 4 ferrites (x = 0.0, 0.01, 0.02, 0.03, and 0.05), prepared by the standard ceramic method, has been studied. It is found that the saturation magnetization increases up to x = 0.01 and then it decreases. On the other hand, the initial permeability decreased while the Curie temperature remained almost constant with increasing x. The coercivity and remanence ratio increased with increasing x.

Study of the physical and magnetic properties of Li0.3Zn0.4−xCaxFe2.3O4 ferrite

“…about the preparation conditions were previously reported [8,9]. X-ray diffraction patterns were performed using a diffractometer of type X'Pert Graphics and identified with Cu K␣ radiation.…”

“…The porosity percentage P(%), the initial permeability i , the coercivity Hc, the remanence Br and the dc electrical resistivity were all measured according to the techniques mentioned in Ref. [8].…”

“…Recently, polycrystalline Li-Zn-Cu ferrite was fabricated as a new temperature sensitive ferrite [7]. In our previous work [8,9] we studied the effect of Ca 2+ substitution on the physical, magnetic, electrical and dielectric properties of Li 0. 3 ferrite.…”

Effect of Composition on Structural and Magnetic Properties of Nanocrystalline Ferrite Li0.5Sm x Fe2.5–x O4

“…Due to their superior properties (such as low cost, favorable magneto-dielectric, and high Curie temperature), Li and substituted lithium ferrites were investigated for microwave and electronic applications [1,2].…”

Effect of substitution with potassium and chromium oxides on the magnetic and electrical properties of Li-ferrite

“…Furthermore, the modification of these properties has been investigated by various authors through the substitution of Liferrite, prepared by ceramic method (conventional method) with different ions of different concentration [3][4][5][6]. Fu reported that, the preparation of Li-ferrites by non-conventional method (microwave induced combustion) have lead to decrease the saturation magnetization and the Curie temperature with increasing chromium content, Cr [7].…”