| 掺杂稀土La的Fe-Co合金/石墨纳米复合物的室温磁性能研究 |
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| 引用本文： | 张治平,吴爱兵,赵永超.掺杂稀土La的Fe-Co合金/石墨纳米复合物的室温磁性能研究[J].唐山学院学报,2014,27(6):31-34. |
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| 作者姓名： | 张治平 吴爱兵 赵永超 |
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| 作者单位： | 1. 唐山学院 环境与化学工程系,河北 唐山,063000
2. 聊城大学 化学化工学院,山东 聊城,252059 |
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| 基金项目： | 2012年度唐山市科学技术研究与发展计划项目 |
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| 摘 要： | 以水热法制备的掺杂不同量稀土La的铁钴合金/钴铁氧体纳米复合物为前驱体,通过与三聚氰胺在高纯氮气氛中发生固相反应合成出掺杂稀土La的Fe-Co合金/石墨纳米复合物。XRD表征结果显示,La与Fe,Co形成了体心立方(bcc)结构的合金;由TEM,HRTEM观察出,掺杂La的Fe-Co合金纳米颗粒尺寸范围为200500nm,且被石墨层包覆;VSM室温磁性能测试结果说明,掺杂La的Fe-Co合金/石墨纳米复合物的饱和磁化强度随着La的掺杂量的增大先减小后增大,而矫顽力先增大后减小。
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| 关 键 词： | 稀土La Fe-Co合金/石墨纳米复合物 磁性能 |
A Study on Room-Temperature Magnetic Properties of Fe-Co Alloy Doped With Rare Earth La/Graphite Nanocomposites |
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| ZHANG Zhi-ping,WU Ai-bing and ZHAO Yong-chao.A Study on Room-Temperature Magnetic Properties of Fe-Co Alloy Doped With Rare Earth La/Graphite Nanocomposites[J].Journal of Tangshan College,2014,27(6):31-34. |
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| Authors: | ZHANG Zhi-ping WU Ai-bing and ZHAO Yong-chao |
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| Institution: | ZHANG Zhi-ping, WU Ai-bing, ZHAO Yong-chao (1. Department of Environmental and Chemical Engineering, Tangshan College, Tangshan 063000, China;2. Col lege of Chemistry and Chemical Engineering, Liaocheng University,Liaocheng 252059, China) |
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| Abstract: | Rron-cobalt alloy/cobalt ferrite nanocomposites doped with rare earth La are produced by using the hydrothermal method.Then,with the nanocomposites as an precursor and through a solid phase reaction with melamine in high pure nitrogen,Fe-Co alloy doped with rare earth La/graphite nanocomposites are synthesized.XRD results show that La and Fe,Co form an alloy with a body centered cubic （BCC）structure.TEM,HRTEM observation indicates that the size range of the alloy of Fe and Co doped with rare earth La,with a graphite layer coating,is 200~500 nm.VSM tests of magnetic properties at room temperature show that the saturation magneti-zation of Fe-Co alloy doped with rare earth La/graphite nanocomposites increases after the first decrease as the amount of doped La increases,but the coercivity first increases and then decreases. |
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| Keywords: | rare earth La Fe-Co alloy/graphite nanocomposites magnetic properties |
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