气-液化学反应制备氮化铁磁性液体  

Preparation of Iron-Nitride Magnetic Fluid by Vapor-Liquid Chemical Reaction

作　　者：郭广生[1] 王志华[1] 余实 杨福明 

机构地区：[1]北京化工大学,北京100029

出　　处：《无机材料学报》2000年第5期921-925,共5页Journal of Inorganic Materials

基　　金：国家自然科学基金!(29971003);高等学校骨干教师资助

摘　　要：通过氨气和五羰基铁之间的气－液化学反应，制备出了稳定的氨化铁磁性液体．较为详细地研究了原料的配比、反应温度、表面活性剂的种类及用量等实验参数对产品性能的影响．利用ＸＲＤ、ＴＥＭ和振动样品磁强计（ＶＳＭ）等技术对产品的化学组成、固体粒子的粒径、晶型及磁性能进行了测定．制备的磁性液体具有较高的饱和磁化强度，达到０．１３４Ｔ．This paper introduced the preparation of stable iron-nitride magnetic fluid by vapor- liquid chemical reaction between iron carbonyl and ammonia. The effects of experiment parameters, such as reactant proportion, reaction temperature, the type and the dosage of the surfactant on product properties were studied in detail. X-ray diffraction(XRD), transmission electron microscope(TEM) and vibrating-sample magnetometer (VSM) were carried out to measure the chemical structure, the crystal style and the magnetic property. The prepared magnetic fluids have high performances with respect to saturation magnetization, up to 0.134T.

关 键 词：磁性液体 氢化铁 磁性能 磁性材料 铁氧体 

分 类 号：TM271.05[一般工业技术—材料科学与工程] TM277.05[电气工程—电工理论与新技术]