Heat-Treatment Temperature Influence on Structure and Magnetic Properties of SrFe sub(11.85)Sm sub(0.15)O sub(19) Ferrite Nanofiber

one-dimensional SrFe sub(11.85)Sm sub(0.15)O sub(19) nanofibers were synthesized by electrospinning combined with heating treatments. This paper involved an investigation of how heat treatment temperature and Sm super(3+) influence structure and morphology of nanofibers. FTIR and XRD results demonstrated that SrFe sub(11.85)Sm sub(0.15)O sub(19) magnetoplumbite phase was formed with increasing of calcined temperature, and small amounta-Fe sub(2)O sub(3) and SmFeO sub(3) were detected at low temperature and high temperature, respectively. The calcined temperature had a great impact on the morphology of nanofibers, which changes from a continuous fibrous structure to large plate grain. The VSM results revealed that the Ms and Hc of nanofiber were both increased with calcined temperature.