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Investigation on nanocomposite magnets by three-dimensional atom probe

机译:三维原子探针研究纳米复合磁体

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摘要

With the fast development in nano materials, to obtain the detailed microstructure information, microscopes with much higher resolution than the conventional ones are required. A three-dimensional atom probe (3DAP), an instrument with near-atomic resolutions of about 0.06 and 0.2 nm in depth and transverse direction, respectively, has been employed to map out the elemental distribution of some conductive materials within a nano-scale volume. This instrument is fit to analyze the elemental distribution in nano materials and nano precipitation in common materials. 3DAP is applied to investigate the microstructure of Nd_2Fe_(14)B/alpha-Fe nanocomposite magnets. B, Fe-enriched, Zr-enriched and Nd, Fe-enriched clusters have been found, which cannot be identified by any other instrument.
机译:随着纳米材料的快速发展,为了获得详细的微观结构信息,需要具有比传统显微镜高得多的分辨率的显微镜。三维原子探针(3DAP)是一种在深度和横向方向分别具有约0.06和0.2 nm的近原子分辨率的仪器,已被用于绘制纳米级体积内某些导电材料的元素分布图。该仪器适合分析纳米材料中的元素分布和普通材料中的纳米沉淀。应用3DAP技术研究了Nd_2Fe_(14)B /α-Fe纳米复合磁体的微观结构。已经发现了B,富Fe,Zr富和Nd,Fe富集的团簇,这些团簇无法通过任何其他仪器来识别。

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