The Effects of Bismuth Oxide on Microstructures and Magnetic Properties of Mn-Mg-Al Ferrites

Nekouee, Kh. A.; Rahimi, Alireza; Haghighi, Milad; Ehsani, N.

doi:10.1007/s11664-018-6297-3

Cited by 9 publications

(1 citation statement)

References 39 publications

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“…The magnetic properties of ferrites with spinel structure and their application depend on the composition and distribution of the cations at the tetrahedral (A) and octahedral (B) spaces [1][2][3][4]. Accordingly, many researchers have replaced various elements in the spinel structure and have studied changes in magnetic properties such as the saturation magnetism (Ms), coercive force (Hc), anisotropy constant (K), remanence magnetization (Mr), and the magnetic moment (nB).…”

Section: Introductionmentioning

confidence: 99%

Role of Praseodymium Addition in the Microstructure and Magnetic Properties of ZnCo Ferrite Nanopowders: Positive or Negative?

Shahbahrami

Rabiee

Shidpoor

et al. 2022

IJE

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In order to investigate the effect of praseodymium (Pr) addition on the microstructure and magnetic properties of cobalt-zinc ferrite nanoparticles (NPs), different values of Pr element (x=0.2, 0.4 and 0.6) were added to the initial composition (Co0.6Zn0.4Fe2-xPrxO4) in the co-precipitation method, and the prepared precipitates calcined at 750 °C for 2 h. The synthesized powders were characterized by X-ray diffraction (XRD), field emission electron microscopy (FESEM), Fourier transform infrared spectroscopy (FTIR), and vibrating sample magnetometer (VSM). XRD pattern revealed the formation of a secondary phase of Pr-Fe oxide in addition to the ZnCo ferrite phase in the samples. FESEM images showed changes in the morphology and size of the particles by adding Pr to the composition. For specimen with x=0.2, the homogeneous spherical like particles with the size about less than 60 nm was formed. Whereas, for composition containing x=0.6 of Pr, a non-uniform powder with plate like particles was obtained and NPs had a thickness of approximately less than 30 nm. VSM analysis indicated that by increasing the element Pr to the cobalt-zinc ferrite composition, especially for values higher than x=0.2, the powder become a completely non-magnetic material.

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Section: Introductionmentioning

confidence: 99%