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Microstructures of Fe77-xNixCu1Nb2P14B6 Soft Magnetic Alloys Studied by X-Ray Absorption Fine Structure |
| YIN Shi-Long1;BIAN Qing2;WE1 Shi-Qiang3 |
| 1Department of Mathematics and Physics, Hohai University, Nanjing 210024
2Department of Basic Science, Institute of Communication Engineering, Nanjing 210016
3National Synchrotron Radiation Laboratory and Center for Fundamental Physics, University of Science and Technology of China, Hefei 230029
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| Cite this article: |
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YIN Shi-Long, BIAN Qing, WE Shi-Qiang 2000 Chin. Phys. Lett. 17 683-685 |
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Abstract Local structures of the mechanically alloyed Fe77-xNixCu1Nb2P14B6soft magnetic materials have been investigated by x-ray absorption fine structure. The results show that mechanical alloying (MA) can drive the Fe77-xNixCu1Nb2P14B6powder mixture to produce amorphous alloy when the atomic concentration of Fe element is about and over 40%. On the contrary, the MA Fe77-xNixCu1Nb2P14B6is a solid solution with an fcc-like structure in the region o f lower Fe at Fe77-xNixCu1Nb2P14B6 omic concentration (< 22%), preserving a medium-range order around Ni and Fe atoms. Moreover, we have found that the local structure geometry of Fe atom is similar to that of Ni atom for all the MA Fe77-xNixCu1Nb2P14B6 samples. It indicates that the local structures of Fe and Ni atoms in a Fe77-xNixCu1Nb2P14B6 sample only depend on the x value of element Ni after ball milling.
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| Keywords:
61.10.Ht
64.40.My
81.30.Hd
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Published: 01 September 2000
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61.10.Ht
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64.40.My
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81.30.Hd
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(Constant-composition solid-solid phase transformations: polymorphic, massive, and order-disorder)
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