采用约束弧等离子体方法成功制备出了高纯Ni纳米粉体,运用X射线衍射(XRD)、透射电子显微镜(TEM)和振动样品磁强计(VSM)对样品的结构、形貌和磁学性质进行了表征.研究了工艺条件对电弧状态和粉体形貌的影响,实验结果表明,约束弧等离子方法能制备出纯净的Ni纳米粉体,并能有效控制粒子的粒径,粉体的比饱和磁化强度低于块体,矫顽力高于块体,饱和磁化强度和矫顽力均随着颗粒度的减小而降低.
参考文献
| [1] | 张立德;牟季美.纳米材料和纳米结构[M].北京:科学出版社,2001 |
| [2] | Gleiter H .Studying on Ultrafine Particles:Crystallography,Methods of Preparation and Technological Application[J].Prog In Mater Sei,1989,33:223-315. |
| [3] | Fendler JH;项金钟;吴兴惠.纳米粒子与纳米结构薄膜[M].北京:化学工业出版社,2003 |
| [4] | Ruslan Z Valiev .Structure and Mechanical Properties of Ultrafine-Grain Metals[J].Materials Science and Engineering,1997,234/236(A):50-66. |
| [5] | Liu Ping;Wang Yuming .Study on Twin Stacking Faults in Ultrafine Nickel[J].Materials & Design,2000,21:155-157. |
| [6] | Zhang W W;Cao Q Q;Xie J L .Structural,Morophological,and Magnetic Study of Nanocrystalline Cobalt-Nickel-Copper Particles[J].Joumal of Colloid and Intefface Science,2003,257:237-243. |
| [7] | Ruslan Z V .Structure and Mechanical Properties of Ultratine Grained Metals[J].Materials Science and Engineering,1997,234/236(A):50-66. |
| [8] | Chen DH.;Chen DR.;Jiao XL.;Zhao YT.;He MS. .Hydrothermal synthesis and characterization of octahedral nickel ferrite particles[J].Powder Technology,2003(1/3):247-250. |
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