X-Ray Pole Figure Analysis and Magnetic Properties of Microwave Sintered Sr-M-type Hexagonal Ferrites

作者：Jin Minglin^*; Wang Zhanyong; Jiang Hanhan; Sun Yanjie; Wang Xiaorui; Qian Huichun; Chen Qizhong; Liu Kejia

来源：Journal of Superconductivity and Novel Magnetism, 2013, 26(8): 2779-2783.

DOI：10.1007/s10948-013-2110-y

• Sr ferrite
• Pole figure
• Microwave sintering
• Magnetic alignment

Sr-M-type sintered hexagonal ferrites were prepared by the conventional and microwave sintering method. X-ray diffraction and pole figure analysis, scanning electron microscopy (SEM), and Robograph 2 magnetic properties test instrument were applied to character the structure and magnetic properties of sintered ferrites. The XRD results reveal all the sintered samples are composed of SrFe12O19 single phase with obvious c-axis alignment. The sample with MS treatment at 1050 degrees C exhibits the optimum magnetic alignment, showing the optimum (0 0 8) and (1 0 7) pole figures with almost all circular lines focused on the center and at about 30 degrees of alpha, respectively. Few pores and optimal densification characters can be seen from the SEM image of strontium ferrites microwave sintered at 1050 degrees C, resulting in the optical magnetic properties as remanence (B-r) of 410.5 mT, coercivity (H-cj) of 372.2 kA/m, and maximum magnetic energy product ((BH)(max)) of 31.53 kJ/m(3), respectively.

• 出版日期2013-8
• 单位上海应用技术大学