Fabrication and property analysis of MnxZn1-xFe2O4 nanofibers and homogeneous-fiber-reinforced MnZn ferrite materials

Abstract

MnxZn1-xFe2O4 (x = 0.3, 0.5, 0.7) nanofibers were prepared by the solvothermal reaction and used as reinforcement phase to synthesize the corresponding three types of homogeneous-fiber-reinforced MnZn ferrite materials. The dependence of composition, morphology, size, and property of MnxZn1-xFe2O4 nanofibers on the Mn content was studied. Results demonstrated that MnxZn1-xFe2O4 nanofibers had uniform 1D fibrous structure, smooth surface, and large aspect ratio, which varied in sizes and arrangements by controlling the ratios of Mn2+ to Zn2+. The lattice parameter gradually decreased and the saturation magnetization (Ms) increased with the Mn content of MnxZn1-xFe2O4 nanofibers increasing from x = 0.3 to 0.7. Meanwhile, the effects of diverse MnxZn1-xFe2O4 nanofibers on the structures, magnetic and mechanical properties such as magnetic hysteresis loop, effective permeability, magnetic loss, and Vickers hardness of MnZn ferrite materials were also investigated systematically. Results indicated that the homogeneous-fiber-reinforced MnZn ferrite materials had denser crystal structure, higher strength, and stability, sothat they possessed excellent magnetic and mechanical properties of high Ms, high permeability, low loss, and high hardness. When the Mn content of MnxZn1-xFe2O4 nanofibers increased from x = 0.3 to 0.7, the homogeneous-fiber-reinforced MnZn ferrite materials exhibited better magnetic and mechanical properties due to the finer size and superior property of the corresponding MnxZn1-xFe2O4 nanofibers.