Ni_(0.3)Cu_(0.1)Zn_(0.6)Fe_2O_4和Ni_(0.3)Cu_(0.1)Zn_(0.6)Sm_(0.05)Fe_(1.95)O_4纳米纤维的结构及磁性能  

Study on Structure and Magnetic Property of Ni_(0.3)Cu_(0.1)Zn_(0.6)Fe_2O_4and Ni_(0.3)Cu_(0.1)Zn_(0.6)Sm_(0.05)Fe_(1.95)O_4 Nanofibers

作　　者：戴剑锋[1,2] 邹锦堂 田西光 闫兴山 李维学[2] 王青[2] 

机构地区：[1]甘肃省有色金属新材料重点实验室,甘肃兰州730050 [2]兰州理工大学理学院,甘肃兰州730050

出　　处：《热加工工艺》2016年第12期1-4,共4页Hot Working Technology

基　　金：国家自然科学基金项目(51262018)

摘　　要：采用静电纺丝技术制备了直径均匀、表面光滑的Ni0.3Cu0.1Zn0.6Fe2O4和Ni0.3Cu0.1Zn0.6Sm0.05Fe1.95O4磁性纳米纤维前驱体,经500~700℃焙烧后得到Ni0.3Cu0.1Zn0.6Fe2O4和Ni0.3Cu0.1Zn0.6Sm0.05Fe1.95O4纳米纤维。利用TG-DSC、XRD、SEM和VSM对Ni0.3Cu0.1Zn0.6Fe2O4和Ni0.3Cu0.1Zn0.6Sm0.05Fe1.95O4纳米纤维的热分解过程、结构、形貌及其磁性能进行表征。结果表明在空气中经500~700℃不同温度焙烧后均得到纯相、结晶良好的Ni0.3Cu0.1Zn0.6Fe2O4纳米纤维。当温度为600℃时,表面光滑的Ni0.3Cu0.1Zn0.6Fe2O4和Ni0.3Cu0.1Zn0.6Sm0.05Fe1.95O4纳米纤维的直径为80 nm;在500、600、700、800℃的情况下,Ni0.3Cu0.1Zn0.6Sm0.05Fe1.95O4纳米磁性纤维的矫顽力比Ni0.3Cu0.1Zn0.6Fe2O4纳米磁性纤维的分别将低了80%、95%、68%、4%,而饱和磁化强度分别增大了2%、25%、8%、4%。The precursors of Ni_（0.3）Cu_（0.1）Zn_（0.6）Sm_（0.05）Fe_（1.95）O_4 nanofibers with uniform diameter and smooth surface were prepared by electrespinning technique. The Ni_（0.3）Cu_（0.1）Zn_（0.6）Fe_2O_4 and Ni0.3Cu0.1Zn0.6Sm0.05Fe1.95O4 nanofibers were obtained after roasting at 500-700℃. The thermal dissociation process, sa＇ucture, morphology, and magnetic properties of Ni_（0.3）Cu_（0.1）Zn_（0.6）Fe_2O_4 and Ni0.3Cu0.1Zn0.6Sm0.05Fe1.95O nanofibers were characterized by TG-DSC, XRD, SEM and VSM, respectively. The results show that the pure phase and well crystallized Ni_（0.3）Cu_（0.1）Zn_（0.6）Fe_2O_4 nanofiber can be obtained after roasting at 500-700℃ in air. When the temperature is 600℃, the diameter of Ni_（0.3）Cu_（0.1）Zn_（0.6）Fe_2O_4 and Ni_（0.3）Cu_（0.1）Zn_（0.6）Fe_2O_4 nanofiber with smooth surface is 80 nm. At 500, 600, 700 and 800 ℃, the coercive force of Ni_（0.3）Cu_（0.1）Zn_（0.6）Fe_2O_4 nanometers magnetic fiber decreases by 80%, 95%, 68%, 4% compared with that of Ni_（0.3）Cu_（0.1）Zn_（0.6）Fe_2O_4 nanometer magnetic fiber,respectively, and then, the saturation magnetization increases by 2%, 25%, 8% and 4%, respectively.

关 键 词：静电纺丝 纳米纤维 磁性能 矫顽力 

分 类 号：O64[理学—物理化学] TQ34[理学—化学]