Single Phase Formation, Cation Distribution, and Magnetic Characterization of Coprecipitated Nickel-Zinc Ferrites

INFLUENCE OF DOPING Zn ON H2 SENSING CHARACTERISTICS OF NICKEL FERRITE NANOPARTICLES

“…The lattice parameter increases almost linearly with increasing Zn 2+ content. According to the Rietveld calculations, Zn ions occupy both tetrahedral and octahedral sublattices [25]. Its ionic radius is much greater than the ionic radii of Ni 2+ and Fe 3+ ions (r Zn = 0.74 Å, r Fe = 0.63 Å, r Ni = 0.69 Å for t h e tetragonal site and r Zn = 0.9 Å, r Fe = 0.785 Å, r Ni = 0.83 Å for the octahedral site) [26].…”

Synthesis of Ni0.5Zn0.5Fe2O4-reinforced E-glass/epoxy nanocomposites for radar-absorbing structures

“…Various methods of synthesizing nanoscale ferrite particles have been successful, such as co-precipitation, ballmilling, hydrothermal refluxing, the sol-gel method and spray-spin heat coating. The sol-gel method is widely used due to its advantageous attributes, including good mixing of starting materials, low processing time, controllability of the morphology and particle size, and the homogeneous nature of the final product [22][23][24][25].…”

“…The drawback of the magnetic materials that have been used as radar-absorbing materials in the literature is that they are effective only when used in high weight percentages [8, 20, 26, 29, 34-37]; this leads to an increase in the overall weight of the structure. Additionally, no significant research has been found with regard to their utilisation in RASs, especially those of NZF; this is true even though their chemical synthesis methods are relatively simple when compared to the RASs of dielectric materials [9, 21-25, 27].…”