Local inhomogeneous structural origin of giant magnetostriction in Fe-Ga alloys
文献类型：期刊论文
| 作者 | Jiang, C; Tao, JZ ; Duan, HP; Ke YB(柯于斌); Ke, YB; Tao JZ(陶举洲)
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| 刊名 | JOURNAL OF ALLOYS AND COMPOUNDS
 |
| 出版日期 | 2017 |
| 卷号 | 725页码:14-22 |
| 关键词 | Transition metal alloys and compounds Precipitation Magnetostriction Atomic scale structure Microstructure Synchrotron radiation |
| ISSN号 | 0925-8388 |
| DOI | 10.1016/j.jallcom.2017.05.180 |
| 文献子类 | Article |
| 英文摘要 | Melt-spun ribbons and single crystal plates of Fe83Ga17 alloys were studied at both nano-scale and atomic-scale to investigate the structure origin of their giant magnetostriction. The presence of nano-precipitates in the melt-spun ribbons was verified using synchrotron x-ray diffraction and was validated by small angle scattering experiment. The nano-precipitates were found to be inhomogeneously distributed within the ribbons, as peak splitting clearly observed in the diffraction patterns disappeared into broad peaks when the synchrotron beam was focused onto different parts of the same sample. Further analysis using x-ray diffuse scattering and extended x-ray absorption fine structure indicates the existence of short-range ordering (SRO) Ga-Ga pairs along the (001) direction in both the ribbon and single-crystal alloys. All experimental evidence suggests that this modified D0(3)-type SRO leads to both a short-range lattice strain and a long-range symmetry breaking tetragonal distortion of the A(2) lattice. This gives rise to giant magnetostriction in the Fe-Ga alloys. In the melt-spun ribbons, the Ga-Ga pairs can aggregate into nano-sized precipitates under fast cooling and enhance the magnetostriction further. (C) 2017 Elsevier B.V. All rights reserved. |
| 电子版国际标准刊号 | 1873-4669 |
| WOS关键词 | SIMILAR MAGNETIC-ALLOYS ; FE83GA17 ALLOY ; HETEROGENEOUS MAGNETOSTRICTION ; EXTRINSIC MAGNETOSTRICTION ; AL ALLOYS ; MICROSTRUCTURE ; MAGNETOELASTICITY ; STRICTION ; SAMPLES ; RIBBONS |
| WOS研究方向 | Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000412332900002 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/285286]  |
| 专题 | 高能物理研究所_东莞分部 高能物理研究所_实验物理中心 |
| 作者单位 | 中国科学院高能物理研究所 |
| 推荐引用方式 GB/T 7714 | Jiang, C,Tao, JZ,Duan, HP,et al. Local inhomogeneous structural origin of giant magnetostriction in Fe-Ga alloys[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2017,725:14-22. |
| APA | Jiang, C,Tao, JZ,Duan, HP,柯于斌,Ke, YB,&陶举洲.(2017).Local inhomogeneous structural origin of giant magnetostriction in Fe-Ga alloys.JOURNAL OF ALLOYS AND COMPOUNDS,725,14-22. |
| MLA | Jiang, C,et al."Local inhomogeneous structural origin of giant magnetostriction in Fe-Ga alloys".JOURNAL OF ALLOYS AND COMPOUNDS 725(2017):14-22. |
入库方式： OAI收割
来源：高能物理研究所
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