采用自行研制的氮化铁磁性液体热解装置,制备出最高饱和磁化强度Ms=0.163 3 T的氮化铁磁性液体。X射线分析表明,磁性颗粒为单一的ε-Fe3N物相成分。经透射电镜观测,其颗粒尺寸在15~20 nm范围内,而且分布均匀。在反应基载液中添加浓缩油NS,经热解,在较短时间内能获得Ms>0.1 T的氮化铁磁性液体,并大大缩短了反应时间。 The ferromagnetic iron nitride liquid with the highest saturation magnetization Ms = 0.163 3 T was prepared by a self-developed ferrofluidized ferrofluid. X-ray analysis shows that the magnetic particles are single ε-Fe3N phase components. The transmission electron microscope observation, the particle size in the 15 ~ 20 nm range, and evenly distributed. The addition of concentrated oil NS to the reaction-based carrier liquid resulted in a ferromagnetic iron nitride solution with Ms> 0.1 T in a relatively short period of time after pyrolysis, and greatly shortened the reaction time.