摘要
Fe-Ni alloyed nanoparticles were prepared by reducing their salt with NaBH4.Structures,particle features,oxidation behaviors and magnetic properties of the samples were investigated by XRD,DSC,SEM and VSM.The results show that when heated at 500℃ under N2,the sample is converted from armphous alloy to crystal state.The nanoparticles are spherical and chainlike.The average particle size is 30nm.The samples are stable in air at room temperature.The saturation magnetization and coercives force is 89.6emu·g-1 and zero,respectively.The samples exhibited superaramagnetization at room temperature.
Fe-Ni alloyed nanoparticles were prepared by reducing their salt with NaBH4. Structures, particle features, oxidation behaviors and magnetic properties of the samples were investigated by XRD. DSC, SEM and VSM. The results show that when heated at 500℃ under N2 ,the sample is converted from armphous alloy to crystal state. The nanoparticles are spherical and chainlike. The average particle size is 30nm. The samples are stable in air at room temperature. The saturation magnetization and coercives force is 89.6emu · g^-1 and zero, respectively. The samples exhibited superaramagnetization at room temperature.
出处
《化学研究与应用》
CAS
CSCD
北大核心
2008年第8期1018-1020,共3页
Chemical Research and Application
基金
江苏省无机及其复合新材料重点实验室资助项目
关键词
纳米
铁钴镍合金
制备
表征
nanometer
Fe-Ni alloy
preparation
characterization
