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利用柠檬酸法合成ＳｒＦｅ１２Ｏ１９超微粉末，用Ｘ射线衍射（ＸＲＤ）、透射电子显微镜（ＴＥＭ）、振动样品磁强计（ＶＳＭ）和Ｍｏｓｂａｕｅｒ谱等技术对粉末的结构、粒径和形貌、性能等进行了观察和测试。结果表明：合成的ＳｒＦｅ１２Ｏ１９铁氧体超微粉末具有较小的粒径和较高的磁学性能。其粒径约为５０ｎｍ，ｊＨｃ为４５２．１３ｋＡ／ｍ，σｓ为６１．５４ｅｍｕ／ｇ，σｒ为３４．９３ｅｍｕ／ｇ。
SrFe12O19 powders were synthesized by citric acid method. The structure, particle size, morphology and properties of the powders were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), vibrating sample magnetometer (VSM) and Mosbauer spectroscopy Etc. were observed and tested. The results show that the synthesized SrFe12O19 ferrite ultrafine powder has a smaller particle size and higher magnetic properties. The particle size was about 50 nm, jHc was 452.13 kA / m, σs was 61.54 emu / g and σr was 34.93 emu / g.