Physical Properties of Ferrites

Nanoparticles of : Synthesis and superparamagnetic properties

“…Both coated and uncoated particles show the X-ray diffraction lines of a spinel phase with a lattice constant a = 8.41Å, which is consistent with that of bulk cobalt ferrite [31]. However, the X-ray diffraction peaks are too broad to allow the distinction between an inverted or a normal spinel phase.…”

Structural, electrical and magnetic properties of Cu1−xZnxFe2O4 ferrites (0≤x≤1)

“…As there are eight molecules in the unit cell so 8 is included in the formula. It decreased from 5.422 to 5.179 g/cm 3 . As X-ray density depends upon the lattice parameters.…”

“…Investigations have been done for magnetic spectra of different ferrites in a wide range of frequencies. Knowledge of magnetic spectra of ferrites provides information whether the ferrites are useful in a given range of frequency as presented by others [1][2][3]. Recently, Ni-Zn ferrites of high permeability and high frequency have been used at large scale to produce all kinds of broadband elements.…”

Application of the Electron Theory of Sintering to the Ferrite Systems

“…According to (2) it is proportional to the parameter κN 0 . Relative rate of reduction of genetic defects, dN dτ 1 N , is proportional to ν in accordance with (3). It implies that the ratio of the given rates is equal to κN 0 /ν.…”

“…The process of density increasing in the solid state at high temperature depends on several factors. Particularly, the atomic number of metal M in the formula of the ferrite MFe 2 O 4 and nonstoichiometry of this compound can greatly change the course of ferrite sintering [3,4]. The mechanism of such dependence is not entirely clear yet.…”