【作者】 江帅； 刘先松； 黄凯； 牛晓飞； 冯双久； 吕法瑞； 武迎春；

【Author】 Jiang Shuai;Liu Xiansong;Huang Kai;Niu Xiaofei;Feng Shuangjiu;Lv Farui;Wu Yingchun;Engineering Technology Research Center of Magnetic Materials,School of Physics & Materials Science,Anhui University;

【机构】 安徽大学物理与材料科学学院,磁性材料安徽省工程技术研究中心；

【摘要】 本文采用了传统陶瓷法在1200℃下制备了M型永磁铁氧体Sr_0.72-xBa_xCa_0.08La_0.20Fe_11.85Co_0.1O₁₉（O≤x≤0.7）。使用了XRD和SEM分析了样品的晶体结构和微观形貌,结果显示样品皆由单一的M相组成,且形成了均匀的六角形结构。利用B-H永磁测量分析仪测量样品的磁性能,结果表明样品的剩余饱和磁化强度（B_r）、磁感应矫顽力(H_cb)和最大磁能积[（BH）_max随着钡含量增大出现了先增大后减小的变化趋势。更多还原

【Abstract】 M-type permanent magnetic ferrites Sr_0.72-xBa_xCa_0.08La_0.20Fe_11.85Co_0.15O₁₉（0≤x≤0.7） were prepared by the ceramic process at the temperature of 1200℃.Structural properties were systematically investigated by X-ray diffraction（XRD） and field emission scanning electron microscopy（SEM）,the results show that the sample is composed of single-phase and formed a uniform hexagonal structure.Magnetic properties of the samples were investigated via a B-H permanent magnetic measurement analyzer,results show the remanence（B_r）,magnetic induction coercivity(H_cb),maximum energy product[（BH）_max]increase first and then decreases with the increase of barium content（x）.更多还原