超细Fe-Co颗粒的制备及表征  

Preparation and characterization of ultrafine Fe-Co particles

作　　者：李世泰[1] 步绍静[1] 赵艳秋 孙继兵[1] 程金云 刘帅 崔春翔[1] LI Shitai;BU Shaojing;ZHAO Yanqiu;SUN Jibing;CHENG Jinyun;LIU Shuai;CUI Chunxiang(School of Materials Science and Technology, Hebei University of Technology, Tianjin 300130,China;Key Laboratory for New Type of Functional Materials in Hebei Province,Tianjin 300130,China)

机构地区：[1]河北工业大学材料科学与工程学院,河北省新型功能材料重点实验室,天津300130

出　　处：《功能材料》2017年第8期67-73,共7页Journal of Functional Materials

基　　金：国家自然科学基金面上资助项目(51271072);国家自然科学基金青年基金资助项目(51301056);河北省自然科学基金资助项目(E2015202008)

摘　　要：Fe-Co合金具有高的饱和磁化强度,高的磁导率,较低的矫顽力以及较小的损耗等优点,得到了广泛的应用。通过改变Fe^(3+)与Co^(2+)的比例,将Fe^(3+)与Co^(2+)同时加入到高压反应釜中,通过化学还原的方法,制备出了不同结构的Fe-Co相颗粒。随着Fe^(3+)/Co^(2+)摩尔比比值的降低,饱和磁化强度Ms逐渐增大,当n(Fe^(3+))/n(Co^(2+))=1∶0和0∶1时,饱和磁化强度分别取得最小值Ms=47.0A·m^2/kg和最大值Ms=113.1A·m^2/kg。Fe-Co alloy with high saturation magnetization,high permeability,low coercive force and low magnetic loss has been applied in many fields.Fe-Co particles with different structure were prepared using chemical re-duction methods by changing the mole ratio of Co2and Fe3and adding them into the high-pressure reaction kettle.Saturation magnetization Ms increased gradually with the mole ratio of Co2and Fe3decreasing,and obtained the minimum(47.0A.m2/kg)and maximum(113.1A.m2/kg)when the mole ratio of Co2and Fe3were1:0and0:1,respectively.

关 键 词：磁性材料 铁钴颗粒 溶剂热 水合肼 磁性能 

分 类 号：TB31[一般工业技术—材料科学与工程] TB34