摘要
本文以硝酸镍[Ni(NO3)2·6H2O],硝酸铁[Fe(NO3)3·9H2O],硝酸钆[Gd(NO3)3·6H2O],氢氧化钠(NaOH)作为原料,采用水热法制备镍铁氧体NiGdxFe2-xO4(x=0,0.02,0.04,0.06,0.1)纳米粉体及研究了稀土掺杂对镍铁氧体磁性能的影响.利用X射线衍射仪(XRD),X射线能谱(EDS)来确定成分,通过振动样品磁强计(VSM)测试样品的磁性能,通过透射电镜(TEM)表征样品形貌.结果表明:随着掺杂量的增加颗粒的平均尺寸逐渐变小,并且样品的饱和磁化强度和矫顽力也减少.
In this paper, nickel nitrate [Ni（NO3）2·6H2O], iron nitrate [Fe（NO3）3·9H2O] nitrate gadolinium [Gd（NOa）3·6H2O], sodium hydroxide （NaOH） as a raw materials, Gadolinium ferrite prepared by hydrothermal NiGdxFe2-xO4（x=0,0.02,0.04,0.06,0.1） nanoparticles and study the effects of re doping on properties of nickel ferrite.Using X-ray diffraction （XRD）, X-ray spectroscopy （EDS） to determine the composition, by vibrating sample magnetometer （VSM） and transmission electron microscope （TEM） characterization of morphology. Results indicate that： With the increase in doping by particles of average size becomes smaller, and samples of saturation magnetization and coercivity of particles decreased average size smaller.
出处
《新疆大学学报（自然科学版）》
CAS
北大核心
2015年第3期314-318,共5页
Journal of Xinjiang University(Natural Science Edition)
基金
国家自然科学基金项目(11164027)
关键词
镍铁氧体
水热法
饱和磁化强度
矫顽力
Nickel ferrite
Hydrothermal method
saturation magnetization
coercivity
