Effects of NiO addition on the structural, microstructural and electromagnetic properties of manganese–zinc ferrite

Effects of NiO addition on the microstructure, elemental distribution and magnetic properties of Mn–Zn power ferrites

“…In contrary to a previous report that the additions such as CaO, Nb 2 O 5 , SiO 2 segregate to the grain boundaries forming second phases [11], undesirable second phases have not been detected due to their low contents below the limit of detection. Co 2 O 3 and NiO are expected to dissolve into the lattice and substitute for Mn 2+ or Fe 2+ in the octahedral B-sites, improving microstructure and magnetic properties in Mn-Zn power ferrites [12,14]. There is a slight shift of peak positions to high angles in the XRD patterns of samples with the increase of NiO concentration, suggesting a diminution of the lattice parameters (a) which can be examined by using the relation : a 2 =(λ 2 /4sin 2 θ)(h 2 +k 2 +l 2 ), where h, k and l are the miller indices of each plane [15].…”

Enhancement of electric and magnetic properties of Mn–Zn ferrite by Ni–Ti ions substitution

“…Manganese-zinc (Mn-Zn) power ferrite mainly used as transformer core operated in the state of high power, which must be with high saturation induction, permeability and low losses [3]. Pure and substituted Mn-Zn ferrites are low cost materials and important for technological applications.…”

Effects of TiO2 and Co2O3 combination additions on the elemental distribution and electromagnetic properties of Mn–Zn power ferrites

“…With the rapid development of power electronic devices towards miniaturization and lighter weight, Mn-Zn power ferrites with better electromagnetic properties are demanded. Hence, the μ i , B s , ρ and P L of Mn-Zn power ferrites need to be improved continually [1][2][3][4][5][6].…”