Formation of bulk ferromagnetic nanostructured Fe40Ni40P14B6 alloys by metastable liquid spinodal decomposition
Formation of bulk ferromagnetic nanostructured Fe40Ni40P14B6 alloys by metastable liquid spinodal decomposition
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亚稳态液体旋节线分解形成块状铁磁纳米结构 Fe40Ni40P14B6 合金
DOI：
10.1007/s11431-009-0108-2
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发表时间：
2009-07-01
期刊：
影响因子：
--
通讯作者：
Li Qiang
中科院分区：
文献类型：
--
作者：
Li Qiang
采用亚稳液相调幅分解法制备了直径为3-5 mm的Fe_（40）Ni_（40）P_（14）B_6合金纳米晶锭。当过冷度Δ T > 260 K时，过冷试样的组织在过冷液态下发生了液态调幅分解。显微组织可以描述为两个相互缠绕的网络，小颗粒分散在其中。对于过冷度Δ T > 290 K，试样的整体显微组织变为粒状形态。小颗粒和大颗粒的平均粒度为千分之一。30纳米和千分之一... 80 nm。这些制备的样品是饱和磁化强度为B（s）千分之一的软磁体. 0.744 T。
Nanostructured Fe40Ni40P14B6 alloy ingots of 3-5 mm in diameter could be synthesized by a metastable liquid state spinodal decomposition method. For undercooling Delta T > 260 K, the microstructure of the undercooled specimen had exhibited liquid state spinodal decomposition in the undercooled liquid state. The microstructure could be described as two intertwining networks with small grains dispersed in them. For undercooling Delta T > 290 K, the overall microstructure of the specimen changed into a granular morphology. The average grain sizes of the small and large grains are a parts per thousand... 30 nm and a parts per thousand... 80 nm, respectively. These prepared samples are soft magnets with saturation magnetization B (s) a parts per thousand... 0.744 T.