摘要
以氯化铁(FeCl3·6H2O)和氨水(N H3·H2O)为原料,以十六烷基三甲基溴化铵(CT A B)为表面活性剂,采用沉淀法制备了氧化铁磁性微球。所得样品用XRD、SEM及SQUID-VSM等手段进行了表征。结果表明,所得氧化铁磁性微球为斜方六面体结构,其粒径大小在0.5—1.5Lm范围,其剩余磁感应强度为0.06emu/g,矫顽力为1700Oe,表现出一定的铁磁性。
Monodispersed magnetic hematite microsperses were prepared by the homogenous precipitation method using FeCla · 6HaO and NHa · H2O as main raw materials. The structures of magnetic hematite microsperses are characterized through X ray diffraction （XRD）,scanning electron microscope （SEM）and super-conducting quantum interference device magnetometer （SQUID）. The results indicated that the diameter of magnetic hematite microsperses is 0. 5-1. 5μm. The saturation magnetization and the coercivity of the resulting products are 0. 06 emu/g and 1700Oe,respectively.
出处
《光谱实验室》
CAS
2013年第6期3180-3183,共4页
Chinese Journal of Spectroscopy Laboratory
关键词
三氧化二铁
磁性微球
磁性能
α-Fe203
Magnetic Microsphere
Magnetic Property
