Synthesis of high aspect ratio of Ni0.5Zn0.5Fe2O4 platelets for electromagnetic devices

Elaboration, Characterization, and Magnetic Properties of Ni0.5Zn0.5Fe2O4 Nanoparticles of High Purity Using Molten Salts Technique

“…He studied the effects of firing temperature and holding time on the properties and microstructure of Ni–Zn ferrite powder. In his work, he showed that the average grain size increased as the sintering temperature increased and the grain shapes changed from triangular patterns to cubic structures with the increase of temperature . Sylvain Hallynck has obtained Ni 0.5 Zn 0.5 Fe 2 O 4 ferrite platelets of 5–300 µm by reaction in a molten salt (KCl or NaCl) between hematite platelets, NiO and ZnO powder at temperatures between 1000 and 1200 °C .…”

Structure and magnetic properties evolution of nickel–zinc ferrite with lanthanum substitution

“…Various synthetic approaches have been pursued to prepare spinel Ni 1-x Zn x Fe 2 O 4 and doped Ni 1-x Zn x Fe 2 O 4 with different particle sizes and morphological features, including ceramic technique [17,23], solid-state reaction at low temperatures [5,24], hydrothermal method [25,26], co-precipitation method [15,27,28], citrate precursor method [29,30], high energy ball milling method [31], sol-gel synthesis [16,18,32], self-combustion method [33], molten salt method [34], refluxing method [35], reverse micelle method [36,37], solvothermal method [38], flash combustion technique [39], and chitosan method [40]. In the synthesis of Ni 0.5 Zn 0.5 Fe 2 O 4 , the crystallite diameter, morphology, and crystalline phases of Ni 0.5 Zn 0.5 Fe 2 O 4 associated with its performances highly depend on the synthesis method and calcination temperature.…”

Synthesis of Co–Cu–Zn doped Fe3O4 nanoparticles with tunable morphology and magnetic properties

“…Many reports proved that the property of spinel ferrites can be improved by doping metal elements in MFe 2 O 4 owing to their enhanced crystal anisotropy [11]. Up to date, the co-doping of two metal ions in MFe 2 O 4 has been extensively studied [12][13][14] and only a few reports involve the co-doping of three metal ions, for example, Mn/Ga/Cr, Cu/Ni/Zn, Co/Mn/RE(rare-earth), Ni/Zn/Cr, etc. in spinel ferrite [15][16][17][18] mainly focusing on their preparation, microstructure and magnetic properties.…”