利用氧化-沉淀法成功制备出了磁铁矿纳米粒子,经过XRD技术表征,磁铁矿纳米粒子的平均直径约为50 nm,粒径分布狭窄。使用DSC技术研究了平均直径为50 nm的磁铁矿纳米粒子与常用的爆炸物高氯酸钾(PP),六硝基芪、(HNS),奥克托今(HMX)和二苦氨基二硝基吡啶(PYX)的热相容性,得到有意义的结论。实验表明,50 nm左右的磁铁矿纳米粒子与PP及PYX热相容,与HNS不相容,与HMX严重不相容。 Magnetite nanoparticles were successfully prepared by oxidation-precipitation method. The average diameter of the magnetite nanoparticles was about 50 nm and the size distribution was narrowed by XRD. DSC techniques were used to study the effect of magnetite nanoparticles with an average diameter of 50 nm on the performance of conventional explosives such as potassium perchlorate (PP), hexanitrostilbene (HNS), octreotide (HMX) and ditallow dinitro Pyridine (PYX) thermal compatibility, get meaningful conclusions. Experiments show that about 50 nm magnetite nanoparticles with PP and PYX thermal compatibility, incompatible with HNS, HMX serious incompatibility.