锶废渣直接制备锶钡铁氧体材料研究.

Strontium barium ferrite (SrxBa1-xFe12O19) is prepared by chemical co-precipitation method using celestite strontium waste residue in Dazu District, Chongqing City. The strontium barium ferrite is characterized by XRD and SEM, and the in fluence of precipitation pH value, calcination temperature, and calcination time on the phase composition and microscopic morphology of strontium barium ferrite is explored. The experimental results show that under the conditions of precipitation pH value of 12, calcination temperature of 900 ℃, and calcination time of 2h, the prepared strontium barium ferrite has no impurity phases and has an obvious hexagonal or nearly hexagonal flake morphology with permanent magnet high saturation magnetization (Ms) and high coercive force (Hc) characteristics. The saturation magnetization (Ms) is 60.29Am²/kg, residual magnetization ( Ms) is 32.16Am²/kg and coercive force (Hc) is 308.08kA/m. [ABSTRACT FROM AUTHOR]