The Research of by Blend and Flux Method SrFe12O19 Magnetic Particle Preparation and Magnetic Properties
According to the influence of sintering time, sintering temperature, different amount of flux and different molar ratio of Fe / Sr to the magnetic properties of prepared SrFe12O19 magnetic particles, the optimum SrFe12O19 conditions were concluded. They are: sintering time: 3 hours; sintering temperature: 1073.15 k; flux NaCl amount: 15% wt of the reaction raw materials; Fe / Sr molar ratio: 11.4; the sample magnetic properties: Ms = 63.39emu / g; Mr = 33.44emu / g; Hc = 5798Oe, Mr / Ms = 1 : 1.90 ≈ 1:2. The prepared SrFe12O19 should be single crystal particles and in the shape of flake, and the particle size should be generally about 80-90nm with uniform distribution.
Guojun Zhang and Jessica Xu
W. Guo et al., "The Research of by Blend and Flux Method SrFe12O19 Magnetic Particle Preparation and Magnetic Properties", Advanced Materials Research, Vols. 160-162, pp. 1513-1517, 2011