退火温度对 FeSiNbCuBP 非晶合金微观结构和磁性能的影响

IF 1.6 4区 物理与天体物理 Q3 PHYSICS, APPLIED
Qianke Zhu, Yan Liu, Ziteng Zhu, Zhe Chen, Shujie Kang, Wang Li, Kewei Zhang, Jifan Hu, Zhijie Yan
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引用次数: 0

摘要

非晶和纳米晶合金之所以具有优异的软磁特性,是因为它们具有独特的微观结构。本研究采用熔融纺丝技术制造了 Fe73.5Si13.5-xNb3Cu1B9Px (x = 0, 3.5, 7, 10 at. %) 非晶带。研究了退火温度(475 ~ 600 ℃)对微观结构和软磁特性的影响。研究结果表明,通过用 P 部分取代 Si,FeSiNbCuBP 非晶合金的热稳定性得到了改善。此外,研究还发现,通过添加适量的 P,可以抑制 α-Fe(Si)相的晶粒长大,并导致合金在退火过程中晶粒细化。在细化晶粒尺寸(9 nm)和最佳结晶体积分数(47%)的基础上,Fe73.5Si10Nb3Cu1B9P3.5 纳米晶合金在 525 ℃ 退火后形成了 0.02 A/m 的低矫顽力和 3.22 × 104 的高有效渗透率。此外,我们还提出,自由电子从 P 向 Fe 的迁移可降低这些合金的饱和磁化率。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Influence of Annealing Temperature on Microstructure and Magnetic Properties of FeSiNbCuBP Amorphous Alloys

Influence of Annealing Temperature on Microstructure and Magnetic Properties of FeSiNbCuBP Amorphous Alloys

Excellent soft magnetic properties of the amorphous and nanocrystalline alloys are attributed to their unique microstructure. In this work, Fe73.5Si13.5-xNb3Cu1B9Px (x = 0, 3.5, 7, 10 at. %) amorphous ribbons have been fabricated using the melt spinning technique. The effect of annealing temperature (475 ~ 600 ℃) on the microstructure and soft magnetic properties have been studied. According to the results, the thermal stability of FeSiNbCuBP amorphous alloys was improved by the partial substitution of Si by P. Moreover, it was found that the grain growth of α-Fe (Si) phase can be restrained by the appropriate amount of P addition and result to a grain refinement of the alloys during annealing. Base on refinement grain size (9 nm) and optimal crystallization volume fraction (47%), Fe73.5Si10Nb3Cu1B9P3.5 nanocrystalline alloy with low coercivity of 0.02 A/m and high effective permeability of 3.22 × 104 was developed after annealed at 525 ℃. Besides, we propose that the migration of free electrons from P to Fe could diminish the saturation magnetization of these alloys.

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来源期刊
Journal of Superconductivity and Novel Magnetism
Journal of Superconductivity and Novel Magnetism 物理-物理:凝聚态物理
CiteScore
3.70
自引率
11.10%
发文量
342
审稿时长
3.5 months
期刊介绍: The Journal of Superconductivity and Novel Magnetism serves as the international forum for the most current research and ideas in these fields. This highly acclaimed journal publishes peer-reviewed original papers, conference proceedings and invited review articles that examine all aspects of the science and technology of superconductivity, including new materials, new mechanisms, basic and technological properties, new phenomena, and small- and large-scale applications. Novel magnetism, which is expanding rapidly, is also featured in the journal. The journal focuses on such areas as spintronics, magnetic semiconductors, properties of magnetic multilayers, magnetoresistive materials and structures, magnetic oxides, etc. Novel superconducting and magnetic materials are complex compounds, and the journal publishes articles related to all aspects their study, such as sample preparation, spectroscopy and transport properties as well as various applications.
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