Local structure, nucleation sites and crystallization behavior and their effects on magnetic properties of Fe(81)Si (x) B(10)P(8-x)Cu(1) (x = 0~8).
Local structure, nucleation sites and crystallization behavior and their effects on magnetic properties of Fe(81)Si (x) B(10)P(8-x)Cu(1) (x = 0~8).
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局部结构，成核位点和结晶行为及其对Fe（81）Si（x）B（10）p（8-x）cu（1）（x = 0〜8）的磁性特性的影响。
DOI：
10.1038/s41598-018-19665-8
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发表时间：
2018-01-19
影响因子：
4.6
通讯作者：
Pan FM
中科院分区：
文献类型：
--
作者：
Cao CC;Wang YG;Zhu L;Meng Y;Zhai XB;Dai YD;Chen JK;Pan FM
在这项工作中，已作出了尝试，以揭示关键因素控制的Fe 81 SixB 10 P8-xCu 1（x = 0，2，4，6和8）合金的结晶和软磁性能。熔纺和退火合金的特征在于差示扫描量热法，X射线衍射，穆斯堡尔谱，透射电子显微镜，正电子湮没寿命谱和磁力。Fe原子间磁相互作用和化学均匀性的变化可以很好地解释Fe 81 SixB 10 P8 − xCu 1非晶合金磁性能的变化。在非晶前体中的成核位置的密度在由Si取代P中降低。同时，析出的纳米晶逐渐粗化，但P对晶粒生长的抑制作用减弱，结晶度增加。此外，在纳米晶中观察到不同的Si占位，并且Si在bcc Fe中的占位降低了纳米晶的平均磁矩。在不牺牲非晶形成能力的前提下，通过优化非晶前驱体中Si和P的含量，可以获得具有优异软磁性能的FeSiBPCu纳米晶合金。
In this work, an attempt has been made to reveal critical factors dominating the crystallization and soft magnetic properties of Fe81SixB10P8−xCu1 (x = 0, 2, 4, 6 and 8) alloys. Both melt spun and annealed alloys are characterized by differential scanning calorimetry, X-ray diffractometry, Mössbauer spectroscopy, transmission electron microscopy, positron annihilation lifetime spectroscopy and magnetometry. The changes in magnetic interaction between Fe atoms and chemical homogeneity can well explain the variation of magnetic properties of Fe81SixB10P8−xCu1 amorphous alloys. The density of nucleation sites in the amorphous precursors decreases in the substitution of P by Si. Meanwhile, the precipitated nanograins gradually coarsen, but the inhibiting effect of P on grain growth diminishes causing the increase of the crystallinity. Moreover, various site occupancies of Si are observed in the nanocrystallites and the Si occupancy in bcc Fe decreases the average magnetic moment of nanograins. Without sacrificing amorphous forming ability, we can obtain FeSiBPCu nanocrystalline alloy with excellent soft magnetic properties by optimizing the content of Si and P in the amorphous precursors.
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影响因子：
3.2
作者：
Makino, Akihiro;Kubota, Takeshi;Yoshida, Shigeyoshi
通讯作者：
Yoshida, Shigeyoshi
影响因子：
8.4
作者：
Lashgari, H. R.;Cadogan, J. M.;Li, S.
通讯作者：
Li, S.
影响因子：
64.8
作者：
GASKELL, PH
通讯作者：
GASKELL, PH
影响因子：
9.4
作者：
Hono, K;Ping, DH;Onodera, H
通讯作者：
Onodera, H
影响因子：
3.2
作者：
Borrego, J. M.;Conde, C. F.;Greneche, J. M.
通讯作者：
Greneche, J. M.