| 微重力落管法制备Nd_(60)Al_(10)Fe_(20)Co_(10)非晶薄片的磁性能研究 |
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| 引用本文： | 李伏,喻更生,林建国,魏炳忱. 微重力落管法制备Nd_(60)Al_(10)Fe_(20)Co_(10)非晶薄片的磁性能研究[J]. 湘潭大学自然科学学报, 2004, 0(4) |
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| 作者姓名： | 李伏 喻更生 林建国 魏炳忱 |
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| 作者单位： | 湘潭大学材料与光电物理学院，湘潭大学材料与光电物理学院，湘潭大学材料与光电物理学院，中国科学院力学研究所 湖南湘潭411105，湖南湘潭411105，湖南湘潭411105，国家微重力实验室，北京100080 |
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| 基金项目： | 湖南省杰出中青年研究计划项目 (0 2JJYB0 10 ) |
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| 摘 要： | 采用微重力落管法制得了Nd6 0 Al1 0 Fe2 0 Co1 0 非晶薄片 .利用X衍射 (XRD)分析了Nd6 0 Al1 0 Fe2 0 Co1 0 非晶薄片的结构特征 .用振动样品磁强计 (VSM)研究了其磁性能 .结果表明微重力落管法制得的非晶薄片具有硬磁性 ,与快速非平衡凝固(如甩带法 )试样的XRD相比 ,尽管其曲线还是较为典型的非晶相漫散衍射峰 ,但已有少量的不规则的类似晶化的突起小峰 ,表明该非晶片中已经有微量晶态合金或者细小晶粒析出 ,初步分析可能是生成了类似于亚稳A1 相的短程有序原子团簇或者是较大尺寸的纳米晶 ,这种短程有序原子团簇或纳米晶是Nd6 0 Al1 0 Fe2 0 Co1 0 非晶薄片显示硬磁性的主要原因
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| 关 键 词： | 微重力 大块金属玻璃 硬磁性 亚稳相 |
The Magnetic Properties of Nd_(60)AI_(10)Fe_(20)Co_(10) Amorphous Slices Made by Microgravity Drop Tube Method |
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| Li Fu,YU Gengsheng,LIN Jianguo,WEI Bingchen. The Magnetic Properties of Nd_(60)AI_(10)Fe_(20)Co_(10) Amorphous Slices Made by Microgravity Drop Tube Method[J]. Natural Science Journal of Xiangtan University, 2004, 0(4) |
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| Authors: | Li Fu YU Gengsheng LIN Jianguo WEI Bingchen |
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| Affiliation: | Li Fu~1,YU Gengsheng~1,LIN Jianguo~1,WEI Bingchen~2 |
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| Abstract: | Nd_(60)Al_(10)Fe_(20)Co_(10) amorphous slices were prepared by microgravity drop tube method. The structures of these slices were investigated by X-ray diffraction (XRD), and their magnetic properties were measured by vibrating sample magnetometer (VSM). The results indicate that the slices prepared by microgravity drop tube behave an amorphous structure with partially crystalline structure. These slices exhibit hard magnetic properties,which may be attributed to a metastable ferromagnetic phase in the microstructure. |
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| Keywords: | microgravity bulk metallic glass hard magnetic metastable phase |
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